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Name Organization Images
Leslie J. Mehrhoff University of Connecticut 10135
Forest & Kim Starr Starr Environmental 10087
Pest and Diseases Image Library 9213
Karan A. Rawlins University of Georgia 6130
Howard F. Schwartz Colorado State University 5583
Mary Ellen (Mel) Harte 5226
Chris Evans Illinois Wildlife Action Plan 4566
Robert Vidéki Doronicum Kft. 4488
Gerald Holmes Valent USA Corporation 3773
Rebekah D. Wallace University of Georgia 3576
Whitney Cranshaw Colorado State University 3214
Florida Division of Plant Industry Archive Florida Department of Agriculture and Consumer Services 3071
Joy Viola Northeastern University 2951
Joseph O'Brien USDA Forest Service 2916
Alfred Viola Northeastern University 2659
John Ruter University of Georgia 2275
Ohio State Weed Lab Archive The Ohio State University 2055
Bruce Ackley The Ohio State University 1934
Lacy L. Hyche Auburn University 1891
William M. Ciesla Forest Health Management International 1865
Joseph M. DiTomaso University of California - Davis 1862
Joseph Berger 1806
Milan Zubrik Forest Research Institute - Slovakia 1785
Rob Routledge Sault College 1619
Dave Powell USDA Forest Service 1533
David Stephens 1528
Floyd W. Shockley Smithsonian Institution 1385
David Cappaert Michigan State University 1356
D. Walters and C. Southwick CPHST 1282
Charles Olsen USDA APHIS PPQ 1273
Paul Bachi University of Kentucky Research and Education Center 1256
The Dow Gardens Archive Dow Gardens 1133
Gyorgy Csoka Hungary Forest Research Institute 1132
Laura Parsons University of Idaho, PSES 1116
Terry L Spivey Terry Spivey Photography 1108
Eli Sarnat 1104
Bruce Watt University of Maine 1063
Joseph LaForest University of Georgia 1061
Clemson University - USDA Cooperative Extension Slide Series 1057
Andrej Kunca National Forest Centre - Slovakia 1041
James H. Miller USDA Forest Service 1018
United States National Collection of Scale Insects Photographs Archive USDA Agricultural Research Service 989
Terry Spivey USDA Forest Service 937
John M. Randall The Nature Conservancy 905
Julia Scher USDA APHIS PPQ 904
Brendan Wray 895
Nathan Lord University of New Mexico 880
Charles T. Bryson USDA Agricultural Research Service 874
Steve Dewey Utah State University 867
Steven Katovich USDA Forest Service 856
Jeffrey W. Lotz Florida Department of Agriculture and Consumer Services 840
Jerry A. Payne USDA Agricultural Research Service 823
Mark Schwarzlander University of Idaho 820
USDA Forest Service - Ogden Archive USDA Forest Service 806
Vern Wilkins Indiana University 785
Richard Webb Self-employed horticulurist 752
Cesar Calderon USDA APHIS PPQ 728
Pennsylvania Department of Conservation and Natural Resources - Forestry Archive 718
David J. Moorhead University of Georgia 714
Lesley Ingram 702
John D. Byrd Mississippi State University 686
University of Georgia Plant Pathology Archive University of Georgia 678
Jim Baker North Carolina State University 648
Sturgis McKeever Georgia Southern University 645
Eric Coombs Oregon Department of Agriculture 621
Jan Samanek State Phytosanitary Administration 619
A. Norrbom et al. Systematic Entomology Laboratory 604
Robert L. Anderson USDA Forest Service 595
Todd Gilligan CSU 564
Paul Wray Iowa State University 555
Graves Lovell Alabama Department of Conservation and Natural Resources 543
Patti Anderson Division of Plant Industry 538
Petr Kapitola State Phytosanitary Administration 535
Steven Valley Oregon Department of Agriculture 533
William M. Brown Jr. 530
Wendy VanDyk Evans 530
Ronald F. Billings Texas Forest Service 523
USDA Forest Service - Region 8 - Southern Archive USDA Forest Service 500
Mary Ann Hansen Virginia Polytechnic Institute and State University 498
J.R. Baker & S.B. Bambara North Carolina State University 490
Whitney Cranshaw Colorado State University 487
Daren Mueller Iowa State University 456
Elizabeth Bush Virginia Polytechnic Institute and State University 453
James H. Miller & Ted Bodner Southern Weed Science Society 451
Johnny N. Dell 447
John Cardina The Ohio State University 437
USDA Forest Service - Northeastern Area Archive USDA Forest Service 435
Jason Brock University of Georgia 426
Lorraine Graney Bartlett Tree Experts 421
James Solomon USDA Forest Service 417
Gerald J. Lenhard Louisiana State University 413
Erich G. Vallery USDA Forest Service - SRS-4552 408
Department of Plant Pathology Archive North Carolina State University 407
Lyndon Photography 394
James Henderson Golden Delight Honey 388
Javier Mercado Colorado state University 387
Charles Averre North Carolina State University 383
Chazz Hesselein Alabama Cooperative Extension System 373
Eugenio Nearns Systematic Entomology Lab 373
David Gent USDA Agricultural Research Service 368
Tony Pernas USDI National Park Service 364
USDA Forest Service - Region 2 - Rocky Mountain Region Archive USDA Forest Service 358
Paul Bolstad University of Minnesota 358
Susan Ellis 354
USDA Forest Service Southern Research Station Archive USDA Forest Service, SRS 353
Caleb Slemmons University of Maine 350
Natasha Wright Florida Department of Agriculture and Consumer Services 345
Gary Alpert Harvard University 342
Bonsak Hammeraas Bioforsk - Norwegian Institute for Agricultural and Environmental Research 338
Brian Lockhart USDA Forest Service 336
Stanislaw Kinelski 331
USDA APHIS PPQ Archive USDA APHIS PPQ 322
Nancy Loewenstein Auburn University 317
Bill Cook Michigan State University 312
Edward L. Barnard Florida Department of Agriculture and Consumer Services 301
Ken Chamberlain The Ohio State University 301
International Society of Arboriculture International Society of Arboriculture 294
Russ Ottens University of Georgia 282
William Jacobi Colorado State University 279
Catherine Herms The Ohio State University 277
John C. French Sr. Retired, Universities:Auburn, GA, Clemson and U of MO 277
USDA Forest Service - North Central Research Station Archive USDA Forest Service 276
Minnesota Department of Natural Resources Archive Minnesota Department of Natural Resources 275
U.S. Geological Survey Archive U.S. Geological Survey 272
R.J. Reynolds Tobacco Company Slide Set R.J. Reynolds Tobacco Company 271
Jim Occi BugPics 270
Barbara Tokarska-Guzik University of Silesia 263
Theodore Webster USDA Agricultural Research Service 263
Dennis J. Giardina Florida Fish and Wildlife Conservation Commission 259
Frank Peairs Colorado State University 253
Chris Schnepf University of Idaho 245
Donald Owen California Department of Forestry and Fire Protection 241
G. Keith Douce University of Georgia 241
Ferenc Lakatos University of West-Hungary 241
T. Davis Sydnor The Ohio State 238
Barry Rice sarracenia.com 236
USDA Forest Service Archive USDA Forest Service 234
Jessica Lawrence Eurofins Agroscience Services 231
Valentyna Meshkova Ukrainian Research Institute of Forestry and Forest Melioration 226
Kenneth M. Gale 225
Merle Shepard, Gerald R.Carner, and P.A.C Ooi Insects and their Natural Enemies Associated with Vegetables and Soybean in Southeast Asia 224
Hannes Lemme 220
Dan Clark USDI National Park Service 219
Brytten Steed USDA Forest Service 216
A. Steven Munson USDA Forest Service 214
Rocky Mountain Research Station/Forest Pathology Archive USDA Forest Service 213
Curtis E. Young The Ohio State University 209
Norman D. Davis 209
Terry S. Price Georgia Forestry Commission 208
Sandra Jensen Cornell University 208
Christina Southwick USDA APHIS PPQ CPHST 207
Scott Bauer USDA Agricultural Research Service 205
Edward L. Manigault Clemson University Donated Collection 202
Maja Jurc University of Ljubljana 200
Ronald Smith Auburn University 194
Donald Groth Louisiana State University AgCenter 193
Mark Adams Adams Arbor Care, LLC 193
James Denny Ward USDA Forest Service 188
Chuck Bargeron University of Georgia 188
Alton N. Sparks, Jr. University of Georgia 188
Mary Burrows Montana State University 185
William Fountain University of Kentucky 182
Dennis Haugen 180
Manfred Mielke USDA Forest Service 178
Louis-Michel Nageleisen Département de la Santé des Forêts 177
Jason Sharman Vitalitree 176
Tom DeGomez University of Arizona 174
Lynn Sosnoskie University of Georgia 173
Linda Haugen USDA Forest Service 170
Gil Wojciech Polish Forest Research Institute 170
USDA APHIS PPQ Archive USDA APHIS PPQ 168
Norbert Frank University of West Hungary 167
John H. Ghent USDA Forest Service 165
Mark Dreiling Retired 164
USDA PLANTS Database USDA NRCS PLANTS Database 162
Norman E. Rees USDA Agricultural Research Service - Retired 161
USDA Forest Service Archive USDA Forest Service 160
Gerard D. Hertel West Chester University 160
Bonnie Million National Park Service 158
Howard Ensign Evans Colorado State University 158
Darren Blackford USDA Forest Service 157
R.K. Jones North Carolina State University 157
Herbert A. 'Joe' Pase III Texas Forest Service 155
H.J. Larsen 153
Yuan-Min Shen Taichung District Agricultural Research and Extension Station 152
E. Richard Hoebeke Cornell University 152
Kenneth R. Law USDA APHIS PPQ 150
Randy Cyr Greentree 148
Lebermuth Company 145
Susan Ellis USDA APHIS PPQ 144
Connecticut Agricultural Experiment Station Archive Connecticut Agricultural Experiment Station 143
Luana Vargas 142
Haruta Ovidiu University of Oradea 140
Charles T. and John R. Bryson 138
Amy Ferriter State of Idaho 138
Daniel Herms The Ohio State University 138
Brett Marshall Sault College 137
USDA Agricultural Research Service Archive USDA Agricultural Research Service 136
Arnold T. Drooz USDA Forest Service 136
Gérard Tavakilian Muséum National d’Histoire Naturelle, Paris, France 132
Julieta Brambila USDA APHIS PPQ 132
John A. Weidhass Virginia Polytechnic Institute and State University 132
Richard Carter Valdosta State University 132
Eric R. Day Virginia Polytechnic Institute and State University 131
Michasia Harris University of Georgia 131
Paul A. Mistretta USDA Forest Service 130
Doug Page USDI Bureau of Land Management 128
Mark Frey The Presidio Trust 128
Steve Hurst USDA NRCS PLANTS Database 126
DAFF Archive 125
Patricia M. Ciesla Forest Health Management International 125
David Jones University of Georgia 125
Ko Ko Maung 121
Jon Yuschock 120
Landesforstpräsidium Sachsen Archive 119
Tom Heutte USDA Forest Service 119
David B. Langston University of Georgia 117
Adam Sisson Iowa State University 117
Franklin Bonner USFS (ret.) 115
Eugene E. Nelson 115
Keith Kanoti Maine Forest Service 113
Fabio Stergulc Università di Udine 113
Tom Creswell Purdue University 109
Thomas Atkinson University of Texas at Austin 107
Larry R. Barber USDA Forest Service 107
Troy Evans Great Smoky Mountains National Park 106
Csaba Szaboky 103
Alan Windham University of Tennessee 103
Mariusz Sobieski 102
Louis Tedders USDA Agricultural Research Service 100
Edward Sikora Auburn University 99
Bob Hammon 99
Phillip Roberts University of Georgia 98
James B. Hanson USDA Forest Service 96
L.L. Berry 94
Andrew Koeser International Society of Arboriculture 93
Scott Tunnock USDA Forest Service 92
Carey Minteer University of Georgia 92
USDA ARS Photo Unit USDA Agricultural Research Service 92
Michael Shephard USDA Forest Service 91
Tim Broschat University of Florida 90
John Fisher Ohio Department of Agriculture 90
Phil Westra Colorado State University 89
Cheryl Moorehead individual 89
Anette Phibbs DATCP 88
Deena Chadi University of New Haven 87
James R. Allison Georgia Department of Natural Resources 86
Pedro Tenorio-Lezama 85
Jan Liska Forestry and Game Management Research Institute 84
Jiri Hulcr Michigan State University 84
Kevin Ong Texas AgriLife Extension Service 83
J.G. Davis 83
John Hartman University of Kentucky 82
Thomas C. Croker USDA Forest Service 82
Nestor Yglesias South Florida Water Management District 81
Ronald S. Kelley Vermont Department of Forests, Parks and Recreation 80
Jil Swearingen USDI National Park Service 80
Thomas D. 'Tom' Landis USDA Forest Service 80
Rachel Brown University of Florida 80
David Dickens University of Georgia 80
David Riley University of Georgia 80
Lori Oberhofer National Park Service 79
Oliver T. Neher University of Idaho 78
Fred Baker Utah State University 78
Samuel Glucksman 78
Patrick Marquez USDA APHIS PPQ 77
University of Georgia Archive University of Georgia 77
Andrew J. Boone South Carolina Forestry Commission 77
Andrea Battisti Universita di Padova 77
M.E. Bartolo 77
Robert Dzwonkowski 76
Arthur E. Miller USDA APHIS PPQ 76
Peggy Greb USDA Agricultural Research Service 75
David McComb USDA Forest Service 74
Mohammed El Damir Pest Management 74
G.E. Cardon 73
Brian Kunkel University of Delaware 73
Jerald E. Dewey USDA Forest Service 72
Carroll E. Younce USDA Agricultural Research Service 72
James D. Young USDA APHIS PPQ 71
USDA Forest Service - Forest Health Protection - St. Paul Archive USDA Forest Service 71
Raymond Gill California Department of Food and Agriculture 71
Great Smoky Mountains National Park Resource Management Archive USDI National Park Service 70
Pam Fuller USGS 70
H C Ellis University of Georgia 70
Central Science Laboratory, Harpenden Archive British Crown 69
Randy Westbrooks U.S. Geological Survey 68
E. Bradford Walker Vermont Department of Forests, Parks and Recreation 67
National Interagency Fire Center Archive 67
Allen Bridgman South Carolina Department of Natural Resources 66
Jennifer C. Giron Duque University of Puerto Rico 66
Roger Ryan USFS PNW Station 65
Albert (Bud) Mayfield USDA Forest Service 64
Center for Disease Control Archive Centers for Disease Control and Prevention 64
Mike Schomaker Colorado State Forest Service 64
Andrea Atkinson National Park Service 63
Don Ferrin Louisiana State University Agricultural Center 63
Daniel R. Suiter University of Georgia 62
Piero Amorati ICCroce - Casalecchio di Reno 62
Utah State University Archive Utah State University 62
Billy Humphries Forest Resource Consultants, Inc. 62
Jim Stimmel Pennsylvania Department of Agriculture 62
Ricky Layson Ricky Layson Photography 62
Beat Forster Swiss Federal Institute for Forest, Snow and Landscape Research 62
Kevin D. Arvin 61
Thomas E. Hinds USDA Forest Service 61
Scott Roberts Mississippi State University 60
Zelimir Borzan University of Zagreb 60
Edward H. Holsten USDA Forest Service 59
Keith Weller USDA Agricultural Research Service 59
USDA Forest Service Archive USDA Forest Service 59
Doug Maguire Oregon State University 58
Theodor D. Leininger USDA Forest Service 58
John D. Hodges Mississippi State University 58
Dan Tenaglia Missouriplants.com 58
David P. Shorthouse University of Alberta 58
Dale Wade Rx Fire Doctor 58
Montana Statewide Noxious Weed Awareness and Education Program Archive Montana State University 58
Art Cushman USDA Systematics Entomology Laboratory 57
Todd Pfeiffer Klamath County Weed Control 57
Charles Ray Auburn University 57
M. O'Donnell and A. Cline California Department of Food and Agriculture 57
Larry Osborne 56
Herb Pilcher USDA Agricultural Research Service 56
Susan K. Hagle USDA Forest Service 56
North Carolina Forest Service Archive 56
Jeremy Greene Clemson University 56
R.L. Croissant 56
Anyi Mazo-Vargas University of Puerto Rico 56
Stephanie Sanchez 55
Carl Dennis Auburn University 54
John Triana Regional Water Authority 54
Stephen F. Austin State University Archive Stephen F. Austin State University 54
Dani Barchana Self employed 53
Steve L. Brown University of Georgia 53
Max Williamson USDA Forest Service 53
Timothy Haley USDA Forest Service 53
James Johnson Georgia Forestry Commission 52
Fred Brooks University of Hawaii at Manoa 52
N.A. Irlbeck 51
John Moser USDA Forest Service 51
William D. Boyer USDA Forest Service 50
Juliana Cardona-Duque University of Puerto Rico 50
Thomas B. Denholm New Jersey Department of Agriculture 50
Tim Tigner Virginia Department of Forestry 50
R. Scott Cameron Advanced Forest Protection, Inc. 50
Rayanne Lehman Pennsylvania Department of Agriculture 50
Daniela Lupastean University of Suceava 49
Lance S. Risley William Paterson University 48
Mark McMillan Colorado State University 48
Natalie Hummel Louisiana State University AgCenter 47
Gary Wade University of Georgia 47
Becca MacDonald Sault College 47
João Loureiro University de Trás-os-Montes e Alto Douro 47
Elmer Verhasselt 47
Dimitrios Avtzis NAGREF-Forest Research Institute 47
R.W. Samson Purdue University 46
Francis Gwyn Jones 46
Nathan W. Gross University of Missouri 46
Kenneth E. Gibson USDA Forest Service 45
Marisa Williams University of Arkansas, Fayetteville 45
Frank E French Georgia Southern University 45
Daniel Adam Office National des Forêts 44
Georgia Forestry Commission Archive Georgia Forestry Commission 44
Amy Benson U.S. Geological Survey 44
Deena Walters USDA APHIS PPQ CPHST ITP 44
Bob Kemerait University of Georgia 43
Indira Singh USDA APHIS PPQ 42
Gary Peeples US Fish and Wildlife Service 42
Jody Fetzer Hillwood Estate, Museum & Gardens 42
Frantisek Soukup 42
M.A. Brick 41
Ladd Livingston Idaho Department of Lands 41
Elizabeth Willhite USDA Forest Service 41
William A. Carothers USDA Forest Service 41
Winston Beck Iowa State University 40
Taina Litwak ARS, USDA 40
Dawn Dailey O'Brien Cornell University 39
Michael C. Thomas Florida Department of Agriculture and Consumer Services 39
Robert Reed USGS 38
J.S. Quick 37
Harry O. Yates III USDA Forest Service 37
Andrew Derksen FDACS/DPI 36
Ryan Jones Colonial Williamsburg Foundation 36
Steve McKeand North Carolina State University 36
Nancy Gregory University of Delaware 36
R.L. Hamblen 36
Arun T.P. 36
Valerie Brej ISA Photos 35
Jonathan D. Eisenback Virginia Polytechnic Institute and State University 35
John W. Dooley USDA APHIS PPQ 35
Elizabeth Bella USDA Forest Service 35
Lisa Ames University of Georgia 35
USDA ARS European Biological Control Laboratory USDA ARS - European Biological Control Laboratory 35
Vladimir Dinets University of Miami 34
Mourad LOUADFEL Plant Protection 34
The Nature Conservancy Archive The Nature Conservancy 33
David Mohn Critters Page (Creatures Great and Small) 33
Monica Elliott University of Florida 33
Stephen Bratkovich USDA Forest Service 32
Dragan Nestorovic elektra 32
Vanessa Richins About.com 32
Lisa Jameson U.S. Fish and Wildlife 31
Sonya Broughton Department of Agriculture & Food Western Australia 31
Bruce Moltzan USDA Forest Service 31
David Parsons University of Wisconsin 31
Eli Sagor University of Minnesota 31
Michelle Grabowski University of Minnesota Extension - Horticulture 31
John W. Schwandt USDA Forest Service 31
Mike Reding & Betsy Anderson USDA Agricultural Research Service 30
Jessica Spencer 30
Eddie McGriff University of Georgia 30
Cindy Roche 30
Rory Register Rory's Photography 30
Joe Murray Treebio.com 29
Larry Trekell 29
DAVID LEE 29
Casey Sanders 29
J. Michael Moore University of Georgia 29
David Adams Balancedrock Photography 29
Karen Snover-Clift Cornell University 29
Oscar Dooling USDA Forest Service 28
Wayne Brewer Auburn University 28
Gregory Parks 28
David Shetlar The Ohio State University 28
Daniel Miller USDA Forest Service 28
Jamie Nielsen University of Alaska Fairbanks, Cooperative Extension Service 28
Nikolai Sokolov 28
Linda Wilson University of Idaho 28
Nancy Fraley USDI National Park Service 28
Vicky Klasmer Instituto Nacional de Tecnologia Agropecuaria 28
Kevin Enge Florida Fish and Wildlife Conservation Commission 28
Annemarie Smith ODNR Division of Forestry 27
University of Arkansas Forest Entomology Lab Archive University of Arkansas 27
José Luís Delgado 27
George Markin USDA Forest Service 27
Lyle Buss University of Florida 27
Ary Farajollahi 27
Alberto Pantoja USDA Agricultural Research Service 26
Mat Pound USDA Agricultural Research Service 26
Clarissa Balbalian Mississippi State University 26
John L. Foltz University of Florida 26
Fitz Clarke 26
Yuri Yashin achatina.ru 26
W. Billen Pflanzenbeschaustelle, Weil am Rhein 26
Plant Protection Service Archive Plant Protection Service 26
Sasa Kunovac University of Sarajevo 26
Bruce W. Kauffman Tennessee Department of Agriculture 26
Ron Halstead Halstead Forestry & Realty, Inc. 25
Biologische Bundesanstalt für Land- und Forstwirtschaft Archive Biologische Bundesanstalt für Land- und Forstwirtschaft 25
Frank M. Riley, Jr. Georgia Forestry Commission 25
Christopher Hogger Swiss Federal Research Station for Agroecology and Agriculture 25
Jake Farnum 25
Loke T. Kok Virginia Polytechnic Institute and State University 25
Tom Coleman USDA Forest Service 25
Robert L. James USDA Forest Service 25
Ned Tisserat Colorado State University 25
Molly Giesbrecht Texas AgriLife Extension Service 25
Matthew Zidek Texas A&M Agrilife Extension Service 24
Stephen Ausmus USDA Agricultural Research Service 24
Dale Pollet Louisiana State University AgCenter 24
Hannah Burrack North Carolina State University 24
Denise Ellsworth The Ohio State University 24
South Dakota Department of Agriculture 24
UAF Cooperative Extension Archive University of Alaska - Fairbanks 23
Victor Sarto i Monteys Servei de Proteccio dels Vegetals 23
Ron Long Simon Fraser University 23
Bob Farrah USDA Forest Service 23
USDA Forest Service - Region 4 - Intermountain Archive USDA Forest Service 23
Cheryl Kaiser University of Kentucky 23
Duncan McClusky University of Georgia 23
Curtis Utley CSUE 23
Sharon Lilly International Society of Arboriculture 22
John Guyon USDA Forest Service 22
Anthony D. White The Ohio State University 22
USDA APHIS PPQ Archive USDA APHIS PPQ 22
Ulrich Zunke University of Hamburg 22
Walter Peraza Padilla Universidad Nacional, Costa Rica 22
Jonathan Armstrong University of Southern California 22
Evgeny Akulov Russian Research Institute Of Plant Quarantine 22
Esmat M. Hegazi University of Alexandria 22
Steve Manning Invasive Plant Control 22
Joe Nicholson Nature photographer 21
Lauren Quinn 21
Ministry of Agriculture and Regional Development Archive Ministry of Agriculture and Regional Development 21
James N. Long Utah State University 21
Jeff Stachler The Ohio State University 21
David T. Almquist University of Florida 21
Melody Keena USDA Forest Service 21
Gary L. Piper Washington State University 21
William C. Nesmith University of Kentucky Research and Education Center 21
GB Edwards Florida Department of Agriculture and Consumer Services 21
John Ruberson University of Georgia 21
Diane Davies University of Georgia 20
Eric Prostko University of Georgia 20
Rachel McCarthy Cornell University - NEPDN 20
USDA Forest Service Archive USDA Forest Service 20
Christina Romagosa Auburn University 20
Kim Camilli Texas Forest Service 20
Gerald Wheeler USDA APHIS PPQ 20
Richard A. Casagrande University of Rhode Island 20
Veli Pohjonen East Usambara Conservation Area Management Programme 20
Laura Lazarus North Carolina Division of Forest Resources 20
Claes Hellqvist Swedish University of Agricultural Sciences 20
Lew Diehl 20
James Kalisch University of Nebraska 20
Mark Atwater Weed Control Unlimited, Inc. 19
O.P. Sharma NCIPM, New Delhi. India 19
Jared Spokowsky New York State Department of Agriculture and Markets 19
Eric LaGasa Washington State Department of Agriculture 19
Barb Corwin Turfgrass Diagnostics 19
Mike Pingleton University of Illinois at Urbana-Champaign 19
Florida Fish and Wildlife Conservation Commission Archive 19
University of Idaho Archive University of Idaho 19
Bradley Higbee Paramount Farming 19
Peter Wirtz 19
Dale E. Meyerdirk USDA APHIS PPQ 19
Kira Metz USDA APHIS PPQ 19
J. Jeffrey Mullahey University of Florida 19
Cheryl McCormick University of Florida 19
Allan Bullard USDA Forest Service 19
Bernd Blossey Cornell University 19
Ronald D. Gitaitis University of Georgia 19
Stephen M. Garnsey USDA-ARS, South Atlantic Area 19
Robert M. McPherson University of Georgia 19
Gail Ruhl Purdue University 18
Steven Lingafelter US National Museum, Smithsonian Institution, Washington, DC, USA 18
Ignazio Graziosi University of Kentucky 18
Jonas Janner Hamann Universidade Federal de Santa Maria 18
Jack Randall Bishop Museum, Hawaii 18
Katherine Parys USDA-ARS 18
Mississippi State University Archive Mississippi State University 18
Virginia Tech Learning Resources Center Virginia Polytechnic Institute and State University 18
Christopher Pierce USDA APHIS PPQ 18
D.D. Cadahia Subdireccion General de Sanidad Vegetal 18
Jess Van Dyke Snail Busters, LLC 18
Richard Floyd Creative Ideas LLC 18
Dan Aamlid Norwegian Forest and Landscape Institute 18
Vladimir Petko V.N. Sukachev Institute of Forest SB RAS 18
Beverly Turner Jackson Minnesota 17
Zhihong Pan Galileo Group Inc. 17
Jennifer Olson Oklahoma State University 17
Samuel Wright Fairchild Tropical Garden 17
Lorne Curran 17
P.F. Byrne 17
H.R. Duke 17
Robert Wick University of Massachusetts 17
Ward Strong BC Ministry of Forests 17
David Knott 17
Boris Hrasovec Faculty of Forestry 17
Bob Nowierski Montana State University 17
Terry English USDA APHIS PPQ 17
F.W. Howard University of Florida 17
Daniel H. Brown USDA Forest Service 17
James W. Byler USDA Forest Service 17
Charles Turner USDA Agricultural Research Service 17
Joe Eger Dow AgroSciences 17
Michael Mengak University of Georgia 16
Paul Bertrand University of Georgia 16
robert anderson 16
Thomas Smiley Bartlett Tree Experts 16
Doug Stone Mississippi State University 16
Dennis Haugen USDA Forest Service 16
Richard Sprenkel University of Florida 16
Patrick Breen Oregon State University 16
James W. Amrine Jr. West Virginia University 16
U. Mazzucchi Università di Bologna 16
Skip Snow National Park Service 16
Ken Masten Georgia Forestry Commission 16
Ken Walker Museum Victoria 16
Peter Bedker 16
J.H. Hofmeyr Citrus Research International 16
Juan Manuel Alvarez University of Idaho 15
Alex Pauvolid-Corrêa Fundação Oswaldo Cruz 15
Hector Mialma 15
U.S. Fish and Wildlife Service Archive US Fish and Wildlife Service 15
H.C. Evans CAB Interational 15
Agriculture and Agri-Food Canada Archive Agriculture and Agri-Food Canada 15
Dr. Reuven Jacobsohn Agricultural Research Organization 15
Ken A. Langeland University of Florida 15
Wendy Klooster Ohio State University OARDC 15
Sandy Kegley USDA Forest Service 15
W. Robert Maple USDA Forest Service 15
Jane Taylor USDA Forest Service 15
Texas Forest Service Archive Texas Forest Service 15
Jim Skiera International Society of Arboriculture 15
Jack Dykinga USDA Agricultural Research Service 15
Eric Erbe USDA Agricultural Research Service 14
Will Hudson University of Georgia 14
Lawrence Morris University of Georgia 14
Steve M. Brown University of Georgia 14
Mark McGregor USDA Forest Service 14
Bernard J. Raimo USDA Forest Service 14
Steve Clarke USDA Forest Service 14
Jean Burns Florida State University 14
Rachel Woodfield Merkel & Associates, Inc. 14
Michael McClure University of Arizona 14
Mic Julien Commonwealth Scientific and Industrial Research Organization 14
Michael Rasy University of Alaska 14
S.K. McDonald 14
Aaron Bergdahl North Dakota Forest Service/North Dakota State University 14
Rob Andress Department of Conservation & Natural Resources 14
Marko Kostanjevec Biotechnical Faculty 13
Kate Leifheit International Society of Arboriculture 13
Michael Barron National Park Service 13
Robert Benjamin None 13
guy meilleur better tree care 13
S. K. Mohan 13
Natalia Kirichenko 13
Martin Draper USDA-NIFA 13
Eric Engbretson US Fish and Wildlife Service 13
European and Mediterranean Plant Protection Organization Archive 13
Agriculture Canada, Ottawa Archive 13
Britt Slattery US Fish and Wildlife Service 13
Scott Robinson Georgia Department of Natural Resources 13
Norbert J. Cordeiro University of Illinois at Chicago 13
Gary Bernon USDA APHIS 13
Leonard Newell USDA Forest Service 13
James McGraw North Carolina State University 13
David R. Lance USDA APHIS PPQ 13
Roger Schmidt University of Wisconsin-Madison 13
Lindsey du Toit Washington State University 13
Karen Brown University of Florida 13
William Lambert University of Georgia 13
David Adams University of Georgia 13
Sekh Sayantan Burdwan Eco Garden 13
Willey Durden USDA Agricultural Research Service 13
Ignacio Baez USDA Agricultural Research Service 13
USDA Forest Service - Pineville Archive USDA Forest Service 13
Paul E. Hennon USDA Forest Service 12
Tamla Blunt Colorado State University 12
Caryn Rickel Institute of Invasive Bamboo Research 12
SRS Webmaster Southern Research Station 12
Elizabeth Dorman State of Michigan 12
Carol LaFayette Visualization Department, Texas A&M University College of Architecture 12
Clinton Shock Oregon State University 12
Virginia Tech Plant Pathology Archive Virginia Polytechnic Institute and State University 12
L.D. Dwinell USDA Forest Service 12
USDA Forest Service - Region 6 - Pacific Northwest Archive USDA Forest Service 12
Alex Mangini USDA Forest Service 12
Mary Ann Fajvan West Virginia University 12
Southern Forest Insect Work Conference Archive Southern Forest Insect Work Conference 12
Gillian Allard FAO of United Nations 12
Milos Knizek Forestry and Game Management Research Institute 12
Paolo Mazzei 12
J.M. Bové INRA Centre de Recherches de Bordeaux 12
Agroscope FAL Reckenholz Archive Swiss Federal Research Station for Agroecology and Agriculture 12
Alan Mills 12
Thomas Jung 12
Victor Ryabincov 12
Jijing Song and Juan Shi Beijing Forestry University 12
Lars Sandved Dalen Norwegian Forest and Landscape Institute 12
Helena Giannini Miami Dade County 12
Mark Chisholm Aspen Tree Care Company 12
Heidi Fry 11
Dennis Navea 11
Kristina Simms 11
Randall Blackburn Smithsonian Institution 11
L. Giunchedi Universita di Bologna 11
Robert F. Wittwer Oklahoma State University 11
S.A. Andrews USDA Forest Service 11
John M. Staley USDA Forest Service 11
Erik Stromberg Virginia Polytechnic Institute and State University 11
Robert Lambe Virginia Polytechnic Institute and State University 11
Bob Richard USDA APHIS PPQ 11
Washington State University Archive Washington State University 11
Donald M. Grosman Texas Forest Service 11
Dwight K. Lauer Auburn University 11
W.H. Bennett USDA Forest Service 11
David M. Moehring Mississippi State University 11
Wayne N. Dixon Florida Department of Agriculture and Consumer Services 10
Rebecca A. Melanson Louisiana State University AgCenter 10
Peter L. Lorio, Jr. USDA Forest Service 10
Mike Ostry USDA Forest Service 10
John Olive Auburn University 10
Neal Spencer USDA Agricultural Research Service 10
Rebecca Barocco University of Florida 10
Lee Miller University of Missouri 10
Stan Diffie University of Georgia 10
Ruben Durán Washington State University 10
Boris Castro Texas A&M University 10
Todd Watson Texas A&M University 10
Steve Passoa USDA APHIS PPQ 10
Charles Hoysa Virginia Cooperative Extension 10
Darrell Ross Oregon State University 10
Tracy Wootten University of Delaware 10
Alison Fox University of Florida 10
Donald F. Rogers North Carolina Division of Forest Resources 10
Dean Morewood Health Canada 10
Duane Raver US Fish and Wildlife Service 10
Roger Lopez-Chaves Universidad de Costa Rica 10
California Department of Food and Agriculture Archive 10
Devon Pfeiffer 10
Paul Butts Georgia Forestry Commission 10
Susan Pierce Trees Atlanta 10
Bartlett Tree Archives 10
Gary Watson Morton Arboretum 10
Department of Primary Industries and Water, Tasmania Archive 10
Steven Conaway Penn State University 10
Kelle Sullivan Florida Fish and Wildlife Conservation Commission 10
John J. Mosesso National Biological Information Infrastructure 9
Meg Williamson Clemson University 9
Mike Lewis Center for Invasive Species Research 9
Howard F. Schwartz & Jillian M. Lang 9
Marsha Ward Florida Fish and Wildlife Conservation Commission 9
Rand Snyder 9
Fredric Miller Miller Joliet Junior College 9
J.A. Davidson 9
Andrew Petrie University of Toronto 9
Central Science Laboratory Archive Crown Copyright 9
Bob Rabaglia Maryland Department of Agriculture 9
Clive Shirley Hidden Forest Designs 9
J.K. Brown University of Arizona 9
A. Eppler Justus-Liebig Universität 9
Kerrie L. Kyde Maryland Department of Natural Resources 9
Sthephen A. Lewis Clemson University 9
M. Clerjeau INRA, Centre de Recherches de Bordeaux 9
T. Azeri Plant Protection Research Institute 9
Petr Srutka Czech University of Agriculture - Prague 9
Jacques Regad Département de la Santé des Forêts 9
Edward Czerwinski Ontario Ministry of Natural Resources 9
Vince Belleci 9
Alec McClay McClay Ecoscience 9
Michael Bohne 9
Clair Merrit Purdue University 9
Roland J. Stipes Virginia Polytechnic Institute and State University 9
James W. Smith USDA APHIS PPQ 9
North Carolina State University Archive North Carolina State University 9
Michelle Cram USDA Forest Service 9
Ann Murray University of Florida 9
Christopher Asaro University of Georgia 9
Jason Walden 9
Wood Product Insect Lab USFS, Gulfport, MS 9
Ayanava Majumdar Alabama Cooperative Extension System 9
Jeffrey Wilson USDA Agricultural Research Service 9
James R. Meeker USDA Forest Service 9
Timothy Schubert Florida Department of Agriculture and Consumer Services 9
Molly Swartwood Cornell University 8
Houping Liu Michigan State University 8
Robert Richardson Michigan State University 8
I. Blakey Lockman USDA Forest Service 8
Peter A. Rush USDA Forest Service 8
Barry Freeman Auburn University 8
Paul Weston Cornell University 8
Julie Kikkert Cornell Cooperative Extension 8
Stephen Curry Lower Merion Twp. 8
*Pam *Fuller USGS 8
Tim Murphy University of Georgia 8
Jean L. Williams-Woodward University of Georgia 8
J. L. Castner University of Florida 8
James D. Ellis University of Florida 8
Debbie Miller USDA Forest Service 8
USDA Forest Service - Region 10 - Alaska Archive USDA Forest Service 8
Brian Sullivan USDA APHIS PPQ 8
USDA APHIS PPQ Archive USDA APHIS PPQ 8
Rudolf H. Scheffrahn University of Florida 8
Yuri Baranchikov Institute of Forest SB RASC 8
Jeff Portwood Temple-Inland 8
Troy Kimoto Canadian Food Inspection Agency 8
Stacey Leicht University of Connecticut 8
W.G. Ziller 8
UK Forestry Commission Archive 8
L. Navarro Instituto Valenciano de Investigaciones Agrarias 8
J.J. Tuset Instituto Valenciano de Investigaciones Agrarias 8
SCRI-Dundee Archive Scottish Crop Research Institute 8
J.P. Michaud Kansas State University 8
Jon Sweeney Natural Resources Canada 8
Kurt Stueber Max-Planck-Institute for Plant Breeding Research, Cologne 8
Tom Gray Canadian Forest Service 8
Linda Lee University of South Carolina 8
Connie Strunk South Dakota State University 8
Ian Kimber 8
HortNET Archive The Horticulture and Food Research Institute of New Zealand 8
D.R. Miller 8
Art Wagner USDA - APHIS 8
Ollie Knott Georgia Forestry Commission 8
Jenn Grieser New York City Department of Environmental Protection 8
Judy Slater 8
Diane Alston Utah State University 8
Emilie Bess USDA APHIS PPQ 8
Samantha Anderson Everglades National Park 8
Gary Kling University of Illinois 8
Myron Adams Home Owner 8
Marja van der Straten NVWA Plant Protection Service 8
N.S. Luepschen 8
G.W. Buchleiter 8
Fernando Gallardo Huelva Forestry University 8
Stephanie Sopow Natural Resources Canada 8
Diego Olmo Laboratori Sanitat Vegetal-Illes Balears 8
Ethel Dutky University of Maryland 7
Mandy Tu The Nature Conservancy 7
Vladimir Gouli University of Vermont 7
Paul Webb 7
Garrett Waugaman M-NCPPC Weed Warriors 7
Brenda Lucas 7
Marilyn Sallee Texas Invasives Org 7
Michel Ménard INRA 7
Claudia Nischwitz Utah State University 7
Connie Gray GA-EPPC 7
Bill Gallup 7
Juan Shi Beijing Forestry University 7
Victor Cordova City of Houston, Urban Forestry Division 7
Jeremy Lee 7
G.M. Buxton 7
Ida Paul Small Grain Institute 7
Georgette Smith Canadian Forest Service 7
David Nicholls dcnicholls.com 7
Hania Berdys 7
Carlos Amadeu Leite de Oliveira Universidade Estadual Paulista 7
Janet S. McCulloch Department of Primary Industries and Fisheries, Queensland 7
Lee Karney US Fish and Wildlife Service 7
Wayne Williamson 7
Mariano Muñiz Centro de Ciencias Medioambientales 7
Nez Perce BioControl Center Archive Nez Perce BioControl Center 7
John Connett University of Idaho 7
Canadian Forest Service Archive Canadian Forest Service 7
Billy Craft 7
Alan Flynn New Zealand Ministry of Agriculture and Forestry 7
Joe Boggs 7
Anne W. Gideon 7
John Kraus 7
Fred Nation Weeks Bay National Estuarine Research Reserve 7
Ellen Lake University of Delaware 7
Charles Drake Virginia Polytechnic Institute and State University 7
Kathy Smith Ohio State University Extension 7
Bob Oakes USDA Forest Service 7
J. Brasington USDA Forest Service 7
Kevin Dodds USDA Forest Service 7
Richard Turcotte USDA Forest Service 7
Kenneth Seebold University of Kentucky 7
Tom Miller University of Kentucky 7
John Andrew Wagner International Society of Arboriculture 7
Jason Gatch University of Georgia 7
Mark Czarnota University of Georgia 7
Byron Rhodes University of Georgia 7
Euguene Stoermer 7
Ontario Ministry of Natural Resources Archive 7
Jo O'Keefe 7
Robert L. Johnson Cornell University 7
David Nance USDA Agricultural Research Service 7
David Hall USDA Agricultural Research Service 7
Milton Rush Plant Pathology, Louisiana State University 7
Christina DiFonzo Michigan State University 6
Paul E. Skelley FDACS-DPI-Florida State Collection of Arthropods 6
Borys M. Tkacz USDA Forest Service 6
Thomas Eubank Mississippi State University 6
Robert A. Haack USDA Forest Service 6
Tom Laurent USDA Forest Service 6
Forrest L. Oliveria USDA Forest Service 6
R.C. Morris USDA Forest Service 6
Billy R. Wiseman USDA Agricultural Research Service 6
Sanford D. Porter USDA-ARS, Center for Medical, Agricultural and Veterinary Entomology 6
Gary Buckingham USDA Agricultural Research Service 6
Oswaldo Brito Independent Consultant 6
Bodie Pennisi University of Georgia 6
Brad Haire University of Georgia 6
Holly Thornton University of Georgia 6
Jeffrey J. Jackson University of Georgia 6
Stanley Culpepper University of Georgia 6
Tim Varnedore University of Georgia 6
Michelle Villafranca Fort Worth Nature Center & Refuge 6
Craig Hicks 6
Anne McMillen-Jackson FLFWCC 6
Fort Worth Nature Center and Refuge Archive City of Fort Worth 6
John Janssen 6
Justin Meier International Society of Arboriculture 6
Billy Higginbotham Texas AgriLife Extension Service 6
D. W. French University of Minnesota 6
Corrie Pieterson University of Florida 6
Colette Jacono UF 6
Robert D. Richard USDA APHIS PPQ 6
E.G. Kuhlman USDA Forest Service 6
Robert F. Bassett USDA Forest Service 6
Michael Montgomery USDA Forest Service 6
OSU Extension Slide Set Archives The Ohio State University 6
J.C. Wells North Carolina State University 6
David G. Robinson USDA APHIS PPQ 6
Victor Ramey University of Florida 6
Raghavan Charudattan University of Florida 6
Takumasa Kondo University of California - Davis 6
Montana State University Archive Montana State University 6
Patrick H. Brose Clemson University 6
Jim Story Montana State University 6
Roger Anderson Duke University 6
Barry Lyons Canadian Forest Service 6
Alan Grant Dept Environmental Protection 6
John N. Gibbs Forestry Commission 6
International Potato Center Archive 6
H.H. Triantaphyllou Nemapix picture set 6
Les Tanner North West Weeds 6
Luboš R. Kolouch 6
Don Herbison-Evans University of Sydney 6
Ian F. Smith 6
K.B. Jamieson Canadian Forest Service 6
Peter Stephen Citrus Research International 6
Forest Research United Kingdom Forestry Commission 6
Douglas Barbe California Department of Food and Agriculture 6
Bob Lepak 6
Lilia De Guzman 6
Thomas Elias 6
Michael Kangas NDSU - North Dakota Forest Service 6
Stephen Lew University of California - Berkeley 6
Carol Hayes Burnt Fork Watershed Alliance 6
Rich Sabulsky 6
Michigan Department of Agriculture 6
Kristen Riolo Priceless Memories 6
J.D. Roberts 6
Temel Gokturk Artvin Forest 6
Harriet Perry Gulf Coast Research Laboratory 6
Greg Leach International Paper 6
Kevin Taylor 6
Carol J Nichols 6
Brian MacGregor 6
Bruce Newhouse 6
Ernesto Moya 6
Dave Leonard Dave Leonard Consulting Arborist, Inc. 6
Amy Diercks 6
Mike Zapata Frisco Urban Forestry Board 6
K.A. Barbarick 6
Lester E. Dickens 6
Jim Tresouthick Village of Homewood 6
Joe Berry none 6
Scott Famous DoD 6
Laura Rogers 5
Jessica Price Natural Resources Canada 5
Sam Markell North Dakota State University 5
B. Merle Shepard Clemson University 5
Howard F. Schwartz & Mark S. McMillan 5
Jean-François Abgrall Centre d'étude du machinisme agricole du génie rural, des eaux et forêts 5
Laurie Reid South Carolina Forestry Commission 5
Angela Walther 5
Claudia Dolinski Universidade Estadual do Norte Fluminense 5
Dennis Teague U.S. Air Force 5
Rosemarie De Clerck-Floate Agriculture and Agri-Food Canada 5
Mark S. Hoddle University of California - Riverside 5
Marianne Prue Ohio Department of Natural Resources - Division of Forestry 5
Susan Turner British Columbia Ministry of Forests 5
Philip Rusted Thurlow Countryside Management (r&d) 5
Mary Foley Benson USDA; Property of the Smithsonian Institution, Department of Entomology 5
Nava Tabak Invasive Plant Atlas of New England 5
Ernest C. Bernard University of Tennessee 5
Chip Bates Georgia Forestry Commission 5
Biologische Bundesanstalt für Land- und Forstwirtschaft Archive Biologische Bundesanstalt für Land- und Forstwirtschaft 5
Bart Wursten Ndundu Lodge Vumba 5
Walter Stahel Environmental Bay of Plenty 5
A. van Frankenhuijzen Plant Protection Service 5
A.T. Jones Scottish Crop Research Institute 5
Dr. Augustin Landesanstalt für Pflanzenbau und Pflanzenschutz: Mainz 5
G. Marchoux INRA Station de Pathologie Végétale 5
Bill Godfrey Georgia Forestry Commission 5
Giuseppina Pellizzari Faculty of Agriculture, Dept.Entomology 5
State Plant Pathology Institute of Denmark Archive 5
American Phytopathological Society Archive American Phytopathological Society 5
T.W. Mew International Rice Research Institute 5
G. Morvan INRA, Montfavet 5
J.W. Walters 5
P.G. Psallidas Benaki Institute, Athens 5
Robert Hedburg St. Louis County Land Department 5
Jack Clark University of California - Davis 5
Jerry Asher USDI Bureau of Land Management 5
Gary M. Stolz US Fish and Wildlife Service 5
Donna R. Ellis University of Connecticut 5
Caleb L. Morris Virginia Department of Forestry 5
Indiana Department of Natural Resources Archive Indiana Department of Natural Resources 5
James A. Copony Virginia Department of Forestry 5
Lawrence Abrahamson State University of New York 5
Bob McMurry Georgia Forestry Commission 5
Heather Faubert University of Rhode Island 5
Robert Trickel North Carolina Forest Service 5
Richard Smith US Fish and Wildlife Service 5
Nadia Da Ros 5
James P. Cuda University of Florida 5
John R. Seiler Virginia Polytechnic Institute and State University 5
Kelly Oten 5
Laurence I. Miller Virginia Polytechnic Institute and State University 5
Greg Bartman USDA APHIS PPQ 5
David R. McKay USDA APHIS PPQ 5
Virgil Davis USDA Forest Service 5
Toby Petrice USDA Forest Service 5
Philip McDonald USDA Forest Service 5
Albert Kais USDA Forest Service 5
Diane Hildebrand USDA Forest Service 5
Lynn Jones and Nathan Havill USDA Forest Service 5
R.F. Scharpf USDA Forest Service 5
Scott Horn USDA Forest Service 5
Clint Hardy University of Kentucky 5
Paul Vincelli University of Kentucky 5
Maia McGuire University of Florida/Florida Sea Grant 5
Ben Jackson University of Georgia 5
Ray Hicks Screven County Extension Service 5
Nancy Hinkle University of Georgia 5
Scott Carlson University of Georgia 5
Dewey Lee University of Georgia 5
Erik Draper Ohio State University Extension 5
Ted D. Center USDA Agricultural Research Service 5
Christine A. Bennett USDA Agricultural Research Service 5
Michael Toews University of Georgia 5
M.G. Klein USDA Agricultural Research Service 5
Susan Wineriter USDA Agricultural Research Service 5
Hugo A. Cordo USDA ARS - South American Biological Control Laboratory 5
Wilson Faircloth USDA Agricultural Research Service 5
Bruce Bosley Colorado State University 5
A.A. Newton USDA Agricultural Research Service 5
T.W. Bretz USDA Forest Service 5
USDA Forest Service - Ashville Archive USDA Forest Service 5
Donald J. Goheen USDA Forest Service 5
Kent Loeffler Cornell University 5
Jeffrey Eickwort Florida Department of Agriculture and Consumer Services 5
Dr. Lynn Clark and Anna Gardner Iowa State University 5
Doug Landis Michigan State University 5
James Smith Mississippi State University 5
William H. Hoffard USDA Forest Service 5
Bernard H. Ebel USDA Forest Service 4
Jack T. Reed Mississippi State University 4
Louisiana State University Archive Louisiana State University 4
L. M. Marsh Florida Department of Agriculture and Consumer Services 4
David W. Johnson USDA Forest Service 4
John R. Tolliver USDA Forest Service 4
Jack C. Nord USDA Forest Service 4
Cathy Stewart USDA Forest Service 4
Auburn University Archive Auburn University 4
John W. Everest Auburn University 4
Jian-qing Ding Cornell University 4
Wayne A. Sinclair Cornell University 4
Hunt Sanders University of Georgia 4
Paul Smith University of Georgia 4
Todd Mathes Department of Natural Resources 4
Clyde Dowler USDA Agricultural Research Service 4
Min B. Rayamajhi USDA Agricultural Research Service 4
Blair Janson The Ohio State University 4
Ansel Oommen 4
Robert W. Matthews University of Georgia 4
Craig Sheppard University of Georgia 4
Shimat Joseph University of Georgia 4
Brian Zimmerman Ohio State University Museum of Biological Diversity 4
Nate Tessler EnviroScience, Inc. 4
Cleveland Metroparks 4
Dave Fuller Montana Fish, Wildlife and Parks 4
Jack Grubaugh University of Memphis 4
Margaret McGrath Cornell University 4
Dennis Riggs Denrig, Inc. 4
Anne Vitoreli University of Florida 4
Rodrigo Diaz University of Florida 4
Nancy Gillette USDA Forest Service 4
S.R. Andrews USDA Forest Service 4
R.S. Peterson USDA Forest Service 4
Bruce Smith USDA APHIS PPQ 4
David Conklin USDA Forest Service 4
Wood Johnson USDA Forest Service 4
Constance Mehmel USDA Forest Service 4
John Pronos USDA Forest Service 4
Donald Duerr USDA Forest Service 4
Paul H. Peacher USDA Forest Service 4
Yun Wu USDA Forest Service 4
Stephen W. Bullington USDA APHIS PPQ 4
Daniel J. Kepich USDA APHIS PPQ 4
Craig Ramsey USDA APHIS PPQ 4
Richard W. Hansen USDA APHIS PPQ 4
Robert J. Richardson North Carolina State University 4
David G. Nielsen The Ohio State University 4
Ohio State Univ Ohio Ag. research & Development Center 4
Kira Zhaurova USDA APHIS PPQ 4
Virginia Tech Weed Identification Guide Archive Virginia Polytechnic Institute and State University 4
Ashley Lamb Virginia Polytechnic Institute and State University 4
Shep Zedaker Virginia Polytechnic Institute and State University 4
A.R. Chase North Carolina State University 4
Diane Reaver Virginia Polytechnic Institute and State University 4
Kenneth Raffa University of Wisconsin 4
James Hoffman 4
Hariet Hinz & Ester Gerber CABI Biosciences 4
USDA NRCS Archive USDA NRCS 4
Peter Room The University of Queensland 4
David L. Overhulser Oregon Department of Forestry 4
Peter Harris Agriculture and Agri-Food Canada 4
Anne Miller Soil and Water Conservation 4
Bonnie Harper-Lore Federal Highway Administration 4
J. Guyot INRA, Pointe-à-Pitre 4
UConn Plant Database www.hort.uconn.edu/plants 4
Jack Ranney University of Tennessee 4
François-Xavier Saintonge Forest Health Department 4
Jean-Paul Grandjean Office National des Forêts 4
J. Johnson University of Idaho 4
Gerald D. Carr Carr Botanical Consultation 4
R. Grimm 4
Richard C. Edwards Purdue University 4
M. Goto 4
INRA-Bordeaux Archive Institut National de la Recherche Agronomique 4
Volcani Center Archive Agricultural Research Organization 4
University of New South Wales Archive University of New South Wales 4
ENSA-Montpellier Archive Ecole nationale supérieure agronomique de Montpellier 4
Bayer Pflanzenschutz Archive Bayer Pflanzenschutz 4
S.L. Goldson MAFTech 4
SRPV, Nice Archive Les Services Régionaux de la Protection des Végétaux 4
Pflanzenschutzamt Weil-am-Rhein Archives Archive 4
Svetlana Y. Gouli University of Vermont 4
Tom Hall Georgia Forestry Commission 4
Carole Cheah Connecticut Agricultural Experiment Station 4
Dr. Backhaus Biologische Bundesanstalt für Land- und Forstwirtschaft 4
G.W. Wallis 4
C.E. Seliskar 4
Canadian Food Inspection Agency Archive 4
Heinz USA Archive 4
Biolog. Bundesans., Inst. f. Pflanzenschutz im Weinbau Archive 4
Forestry Canada, Ottawa Archive 4
M.A. van den Berg Institute for Tropical and Subtropical Crops 4
C.A. de Klerk Nietvoorbij Institute for Viticulture and Oenology 4
Gerhard Elsner Biologische Bundesanstalt für Land- und Forstwirtschaft 4
A. Vigouroux ENSA 4
Alexander Purcell University of California 4
Larry Line Mostly Moths of Maryland 4
Brian Perchtel 4
April Noble Antweb.org 4
Wen Baldwin Lake Mead Boat Owners Association 4
University of Alaska - Anchorage Archive University of Alaska - Anchorage 4
International Rice Research Institute Archive 4
Malcolm Storey BioImages - Virtual Field-Guide 4
Joel E. Miles Office of Environmental Response and Coordination 4
Andrew Gentry Invasive Plant Control, Inc. 4
Felicien Amakpe Cercle nature et développement CENAD NG0 4
Tim O'Neill Cheltec, Inc. 4
Bill Vander Weit City of Champaign 4
Graham Trim Freelance 4
Jeff Sexton Madisonville Country Club 4
Buyung Hadi South Dakota State University 4
Rene Marcinhes 4
Arlo Kane Florida Fish and Wildlife Conservation Commission 4
Mohammad Mirnezhad Leiden University 4
Lindsey Lewis U.S. Fish and Wildlife 4
Craig Haskell USGS 4
Rick Roseman 4
Pierre Yves Laroche 4
J. C. Bell USDA Forest Service 4
Marne Titchenell The Ohio State University 3
Dr. A. D. Ali Davey Tree Expert Company 3
Robert Lee 3
Kurtis Byrne Mesa Turf Masters LLC 3
guy meilleur better Tree Care Associates 3
Jeff Weidhaas Bruce Terminix 3
Chris Malumphy The Food and Environment Research Agency 3
Kristopher Abell University of Massachusetts 3
Josh Shoemaker 3
Chris Schultz 3
Stephanie Adams The Morton Arboretum 3
Cheri Abraham University of Georgia 3
Sarah Vanek 3
Tymo Muus 3
James Allison naturalist 3
Nico Franz University of Puerto Rico 3
Clif Brown 3
Melissa Miller USGS Volunteer 3
Vicky Quick National Biological Information Infrastructure 3
Brett Billings US Fish and Wildlife Service 3
New York Department of Environmental Conservation Archive 3
Gvozdev Antony free artist 3
Shiva Shankar Prapanna solutions 3
Scott Golden Boulder County Parks & Open Space 3
Paul Trible 3
William Shuster United States Environmental Protection Agency 3
Lizbeth Gonzalez Ericsson 3
F.C. Schweissing 3
Michael Jordan Alabama Department of Environmental Management 3
G.D. Franc 3
IPM Thailand Archive 3
Patrick Loes 3
Stanton Gill University of Maryland Cooperative Extension 3
Donna Richardson Royal Pest Management 3
Mirza Dautbasic University of Sarajevo 3
Alan Isler Georgia Forestry Commission 3
Nanna Borcherdt Sitka Conservation Society 3
Kristin Peterson OEB Dept., Harvard University 3
David Seerveld AAAnimal Control 3
Maresha Seusy 3
Jacob Vance Emory University 3
Barry Cooke Natural Resources Canada 3
Donnie Edwards 3
Michael T. Smith 3
S.P. van Vuuren Citrus Research International 3
Joe Jernigan Alabama Wildlife and Freshwater Fisheries 3
Dell O. Clark California Department of Food and Agriculture 3
John Stommel 3
D.G. Passmore 3
Bruce Fritz 3
Daniel Wojcik 3
David Karp 3
Nick Dimmock University of Northampton 3
Tarique Sani SANIsoft 3
Jose Hernandez USDA NRCS PLANTS Database 3
Suzanne Foster USDA NRCS PLANTS Database 3
Karen Ackles KMA Images 3
Roger S Key English Nature 3
Antoine Guyonnet Lépidoptères Poitou-Charentes 3
J. Tomminen University of Helsinki 3
J.K. Pataky University of Illinois at Urbana-Champaign 3
J. Pedro Mansilla Vazquez Servicio Agrario, Pontevedra 3
Rick West Canadian Forest Service 3
Università di Bologna Archive Università di Bologna 3
Gordon Rodda U.S. Geological Survey 3
James Braselton 3
University of Illinois at Urbana-Champaign Archive University of Illinois at Urbana-Champaign 3
The Natural History Museum, London Archive 3
Christer Olsson Swedish Board of Agriculture 3
Eric Rebek Oklahoma State University 3
André Bolay St. Fédér. de Recherches Agronomiques de Changins 3
A.C. Magyarosy 3
Kenneth Calcote Mississippi Department of Agriculture and Commerce 3
Martin Moses University of Idaho 3
J. Dunez 3
J.C. Hopkins 3
E.A. Milus University of Arkansas 3
F. Dosba INRA, Bordeaux 3
Ferenc Viranyi Godollo University of Agricultural Sciences 3
G. Perrotta Università di Calabria 3
Shawn Good Vermont Department of Fish and Wildlife 3
GEVORK ARAKELIAN LA County Dept. Agriculture 3
Pflanzenschutzamt, Hanover Archive Pflanzenschutzamt, Hanover 3
Pflanzenschutzamt Saarbrücken, Husken-Thimm Archive Pflanzenschutzamt Saarbrücken, Husken-Thimm 3
P.M.J. Ramakers Applied Plant Research 3
J. O'Bannon Nemapix picture set 3
S.D. Lyda 3
Università di Napoli Archive Università di Napoli 3
Ministry of Agricuilture and Rural Affairs Archive Ministry of Agricuilture and Rural Affairs 3
INRA-Angers Archive Institut National de la Recherche Agronomique 3
INRA-Versailles Archive Institut National de la Recherche Agronomique 3
Institut Technique de la Betterave Archive 3
M. Koizumi Fruit Trees Research Station 3
K.V. Raman CIP, Lima (PE) 3
R. Stace-Smith 3
R. Flores Instituto de Agroquimica y Tecnologia de Alimentos 3
P.J. Chapman New York State Agricultural Experiment Station 3
Claude-Bernard Malphettes Institut National de la Recherche Agronomique 3
David McClenaghan Commonwealth Scientific and Industrial Research Organization 3
Lisa Anness LDA Associates 3
Debbie Miller Davey Tree Expert Company 3
J. Louvet 3
Alex. H. Purcell University of California - Berkeley 3
tia smith 3
Lisa Tewksbury University of Rhode Island 3
Bob Davidson 3
Michael Masiuk 3
Leslie Chong Simon Fraser University 3
Sally Tucker 3
CABI Biosciences Archive CABI Biosciences 3
C.A. Frazier 3
Jim Space Pacific Island Ecosystems at Risk (PIER) 3
Robert Childs University of Massachusetts 3
USDI BLM Archive USDI Bureau of Land Management 3
W.C. Guy 3
Sunil Ranasinghe Alberta Government 3
I.G. (Hardi) Oberholzer ARC - Plant Protection Research Institute 3
David Mooter Prairie Silvics, Inc. 3
Tommaso Branzanti 3
Julio Medal University of Florida 3
Doug Caldwell Univ. Florida 3
Anton Baudoin Virginia Polytechnic Institute and State University 3
Chris Bergh Virginia Polytechnic Institute and State University 3
R.D. Milholland North Carolina State University 3
Brantlee Spakes Richter University of Florida 3
Gary Brown USDA APHIS PPQ 3
Brian Sugerman The Ohio State University 3
Barbara Bloetscher The Ohio State University 3
Monica Lewandowski Ohio State 3
Stephen Davis USDA APHIS PPQ 3
Phil Crawl USDA Forest Service 3
C.L. Hodges USDA Forest Service 3
Wayne Adkins USDA Forest Service 3
Richard Spriggs USDA Forest Service 3
Laura Merrill USDA Forest Service 3
Bruce Hostetler USDA Forest Service 3
Ed Messerlie USDA Forest Service 3
Martin MAcKenzie USDA Forest Service 3
Brian Cabrera University of Florida, Ft. Lauderdale 3
Lynne Rieske-Kinney University of Kentucky 3
Bill Mesner University of Kentucky Research and Education Center 3
Julie Beale University of Kentucky 3
Amy Fulcher University of Kentucky 3
Nathan Howard University of Kentucky 3
George Kelley University of Kentucky 3
Diane Perkins University of Kentucky 3
Mark Duff Texas Forest Service 3
Texas A&M AgriLife Extension Service Archive Texas A&M University 3
Robert Emanuel Clean Water Services 3
James Chatfield Ohio State University 3
Anna Soper 3
Faith Appelquist Tree Quality, LLC 3
Lori L. Wallace 3
D. Manastyrski 3
Scot Nelson University of Hawaii at Manoa 3
Rikhab Raj-Bhansali CAZRI 3
Michelle Bowman 3
Larry McCord Santee Cooper 3
California Department of Fish and Game Archive 3
Howard Jelks USGS 3
Dave Kelch Ohio Sea Grant 3
Trish Murphey NC Department of Environment ad Natural Resources 3
Lalnunpuii Parte Krishi Vigyan Kendra 3
Debbie Waters University of Georgia 3
Paul Thomas University of Georgia 3
Keith Delaplane University of Georgia 3
Johnny Crawford University of Georgia 3
A. Burns Weathersby University of Georgia 3
James O. Howell University of Georgia 3
Snyers Chris Flemish Entomological Society 3
Linda Schroeder The Pacific Northwest Shell Club 3
Florida Sea Grant Archive 3
Hillsborough County Parks, Recreation and Conservation Department Archive 3
Arkansas Game and Fish Commission Archive 3
Stephen D. Hight USDA Agricultural Research Service 3
Elizabeth Carlson University of Georgia 3
University of Georgia Entomology Archive University of Georgia 3
H. Gross USDA Agricultural Research Service 3
Tony Caesar USDA Agricultural Research Service 3
Reid Frederick USDA Agricultural Research Service 3
Barry Fitzgerald USDA Agricultural Research Service 3
Jim Plaskowitz USDA Agricultural Research Service 3
B.J. Goates USDA Agricultural Research Service 3
Doug Wilson USDA Agricultural Research Service 3
Cornell University Archive Cornell University 3
New York State Agricultural Experiment Station Archive Cornell University 3
Daniel K. MacKinnon Colorado State University 3
Eric Honeycutt Bartlett Tree Experts 3
Brian Prechtel USDA Agricultural Research Service 3
Brian Geils USDA Forest Service 3
Dave Holland USDA Forest Service 3
Andris Eglitis USDA Forest Service 3
Andrea Van Loan Florida Department of Agriculture and Consumer Services 3
Louisiana State University AgCenter Archive Louisiana State University AgCenter 3
Nancy Coile Florida Department of Agriculture and Consumer Services 2
Mao Chen Cornell University 2
Howard Russell Michigan State University 2
Wilfredo Robles Mississippi State University 2
Edward P. Merkel USDA Forest Service 2
Blake Layton Mississippi State University 2
Michael Seymour Louisiana State University 2
Michael D. Connor USDA Forest Service 2
John A. Williams USDA Forest Service 2
Robert A. Sommers USDA Forest Service 2
Carl W. Fatzinger USDA Forest Service 2
Frank Hawksworth USDA Forest Service 2
Max Ollieu USDA Forest Service 2
Ralph Williams USDA Forest Service 2
R. Werner USDA Forest Service 2
Norm Johnson USDA Forest Service 2
Dave Overholser USDA Forest Service 2
Ron Weeks Auburn University 2
Biological Control: A Guide of Natural Enemies of North America Web Site Cornell University 2
George Hudler Cornell University 2
D. Minner 2
D. Settle 2
J. L. Kaminski 2
P. Sell 2
Reyes Garcia III USDA Agricultural Research Service 2
Jason D. Stanley USDA Agricultural Research Service 2
Lisa Castlebury USDA Agricultural Research Service 2
Machelle Clements University of Georgia 2
Sara Rosenthal USDA Agricultural Research Service 2
Jim Carpenter USDA Agricultural Research Service 2
Colin van Overdijk 2
M. Grodowitz 2
S. Langman 2
James Whited 2
Mike Quigley NOAA 2
Department of Fisheries and Oceans Canada Archive 2
Mike Goehle USFWS 2
Rex L. Lowe 2
Joaquin Baixeras Almela University of Valencia, Spain 2
Paul Humann 2
Lamar Merck University of Georgia 2
Robert T. Dillon, Jr. College of Charleston 2
Susan Rose 2
Beverly Sparks University of Georgia 2
Dan Rahn 2
Wayne Berisford University of Georgia 2
George Boyhan University of Georgia 2
Michelle Samuel-Foo University of Georgia 2
William D. Duffie Jr. University of Georgia 2
Steve Rider AL Dept. of Conservation and Natural Resources 2
Larry Page Museum of Natural History 2
Matt Love Guana Tolomato Matanzas National Estuarine Research Reserve 2
Lance Robinson Texas Parks & Wildlife 2
Bacheline Joseph University of Florida 2
Chris Taylor Illinois Histroty Survey 2
Al Hicks NYSDEC 2
Elizabeth Jackson 2
Darryl Felder Univ. of Louisiana 2
Rob Cosgriff Illinois Natural History Survey 2
Jerry Bright 2
M. Gatreau University of New Brunswick 2
Richard Biggins USFWS 2
Illinois Natural History Survey Archive 2
Alabama Department of Conservation and Natural Resources Archive 2
Jim Huff Santee Cooper 2
Jacob Sprinkle USDA Forest Service 2
Kirk Trekell Alva Fire Department 2
Robert Efram 2
Rachel Boone 2
Pedro Torrent Chocarro 2
Tom Murray 2
Catherine Linnen University of Kentucky 2
David W. Ragsdale Texas A&M University 2
Allen E. Knutson Texas A&M University 2
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Jill O'Donnell MSU Extension 1
James A. Richmond USDA Forest Service 1
James H. Jarratt Mississippi State University 1
Brian Eshenaur Cornell Universtiy IPM 1
Dr. Shabbir Rizvi Florida Department of Agriculture and Consumer Services 1
Ralph D. Bagwell Louisiana State University 1
Sue Blodgett Iowa State University 1