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Name Organization Images
Leslie J. Mehrhoff University of Connecticut 14425
Pest and Diseases Image Library 10358
Forest and Kim Starr Starr Environmental 10087
Gerald Holmes Valent USA Corporation 7663
Karan A. Rawlins University of Georgia 6960
Howard F. Schwartz Colorado State University 5752
Mary Ellen (Mel) Harte 5226
Chris Evans Illinois Wildlife Action Plan 4567
Robert Vidéki Doronicum Kft. 4488
Rebekah D. Wallace University of Georgia 3589
Whitney Cranshaw Colorado State University 3377
Joy Viola Northeastern University 3291
Alfred Viola Northeastern University 3279
Joseph O'Brien USDA Forest Service 3210
Florida Division of Plant Industry Archive Florida Department of Agriculture and Consumer Services 3071
Rob Routledge Sault College 2930
William M. Ciesla Forest Health Management International 2584
Bruce Watt University of Maine 2396
John Ruter University of Georgia 2289
Lacy L. Hyche Auburn University 2061
Ohio State Weed Lab Archive The Ohio State University 2055
Bruce Ackley The Ohio State University 1934
Joseph Berger 1914
Joseph M. DiTomaso University of California - Davis 1862
Milan Zubrik Forest Research Institute - Slovakia 1785
David Stephens 1665
Dave Powell USDA Forest Service 1533
Floyd W. Shockley Smithsonian Institution 1385
David Cappaert Michigan State University 1357
D. Walters and C. Southwick USDA 1282
Charles Olsen USDA APHIS PPQ 1273
Paul Bachi University of Kentucky Research and Education Center 1256
Gyorgy Csoka Hungary Forest Research Institute 1136
The Dow Gardens Archive Dow Gardens 1133
Joseph LaForest University of Georgia 1126
Laura Parsons University of Idaho, PSES 1116
Terry L Spivey Terry Spivey Photography 1108
Eli Sarnat 1098
Clemson University - USDA Cooperative Extension Slide Series 1056
Steven Katovich USDA Forest Service 1043
Alexander Derunkov USDA 1042
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
Vern Wilkins Indiana University 936
Whitney Cranshaw 932
T. Davis Sydnor The Ohio State University 927
Lesley Ingram 925
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 866
Jeffrey W. Lotz Florida Department of Agriculture and Consumer Services 840
Jerry A. Payne USDA Agricultural Research Service 823
Mark Schwarzlander University of Idaho 821
USDA Forest Service - Ogden Archive USDA Forest Service 806
Cesar Calderon USDA APHIS PPQ 778
Richard Webb Self-employed horticulurist 753
Pennsylvania Department of Conservation and Natural Resources - Forestry Archive 718
David J. Moorhead University of Georgia 715
Jennifer Beard University of Maryland 706
John D. Byrd Mississippi State University 686
University of Georgia Plant Pathology Archive University of Georgia 679
Eric Coombs Oregon Department of Agriculture 649
Jim Baker North Carolina State University 648
Sturgis McKeever Georgia Southern University 644
Jan Samanek State Phytosanitary Administration 619
Caleb Slemmons University of Wisconsin, Stevens Point 613
A. Norrbom et al. Systematic Entomology Laboratory 604
Robert L. Anderson USDA Forest Service 595
Graves Lovell Alabama Department of Conservation and Natural Resources 577
Todd M. Gilligan and Marc E. Epstein CSU 562
Paul Wray Iowa State University 555
Erich G. Vallery USDA Forest Service - SRS-4552 548
Harlan B. Herbert 546
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
Mary Ann Hansen Virginia Polytechnic Institute and State University 528
Ronald F. Billings Texas Forest Service 522
USDA Forest Service - Region 8 - Southern Archive USDA Forest Service 500
J.R. Baker & S.B. Bambara North Carolina State University 490
Lorraine Graney Bartlett Tree Experts 484
Daren Mueller Iowa State University 466
James H. Miller & Ted Bodner Southern Weed Science Society 451
Elizabeth Bush Virginia Polytechnic Institute and State University 450
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
James Solomon USDA Forest Service 418
Gerald J. Lenhard Louisiana State University 413
Department of Plant Pathology Archive North Carolina State University 411
Lyndon Photography 394
James Henderson Golden Delight Honey 388
Javier Mercado Colorado state University 387
Charles Averre North Carolina State University 385
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 351
Brian Lockhart USDA Forest Service 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
Nancy Loewenstein Auburn University 336
Stanislaw Kinelski 331
USDA APHIS PPQ Archive USDA APHIS PPQ 322
Bill Cook Michigan State University 312
John C. French Sr. Retired, Universities:Auburn, GA, Clemson and U of MO 306
Edward L. Barnard Florida Department of Agriculture and Consumer Services 301
Ken Chamberlain The Ohio State University 301
Alessandra Rung California Department of Food & Agriculture 295
International Society of Arboriculture International Society of Arboriculture 294
Russ Ottens University of Georgia 285
William Jacobi Colorado State University 279
Catherine Herms The Ohio State University 279
USDA Forest Service - North Central Research Station Archive USDA Forest Service 275
Minnesota Department of Natural Resources Archive Minnesota Department of Natural Resources 275
U.S. Geological Survey Archive U.S. Geological Survey 273
Jim Occi BugPics 273
R.J. Reynolds Tobacco Company Slide Set R.J. Reynolds Tobacco Company 271
Sandra Jensen Cornell University 271
Theodore Webster USDA Agricultural Research Service 263
Barbara Tokarska-Guzik University of Silesia 263
Dennis J. Giardina Florida Fish and Wildlife Conservation Commission 261
Chris Schnepf University of Idaho 259
Frank Peairs Colorado State University 253
Randy Cyr Greentree 248
Donald Owen California Department of Forestry and Fire Protection 241
G. Keith Douce University of Georgia 241
Ferenc Lakatos University of West-Hungary 241
Barry Rice sarracenia.com 236
Jessica Louque Smithers Viscient 235
USDA Forest Service Archive USDA Forest Service 234
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 225
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
Norman D. Davis 210
Curtis E. Young The Ohio State University 209
Terry S. Price Georgia Forestry Commission 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
Alton N. Sparks, Jr. University of Georgia 191
Chuck Bargeron University of Georgia 188
James Denny Ward USDA Forest Service 188
Mary Burrows Montana State University 185
William Fountain University of Kentucky 182
Dennis Haugen 180
Manfred Mielke USDA Forest Service 178
Brett Marshall Sault College 177
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 167
Mark Dreiling Retired 166
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
Kenneth R. Law USDA APHIS PPQ 159
Howard Ensign Evans Colorado State University 158
Bonnie Million National Park Service 158
Darren Blackford USDA Forest Service 157
R.K. Jones North Carolina State University 157
Herbert A. 'Joe' Pase III None 155
H.J. Larsen 153
Yuan-Min Shen Taichung District Agricultural Research and Extension Station 153
E. Richard Hoebeke Cornell University 152
Michasia Harris University of Georgia 152
Susan Ellis USDA APHIS PPQ 144
Connecticut Agricultural Experiment Station Archive Connecticut Agricultural Experiment Station 143
Anette Phibbs WI Department of Agriculture, Trade & Consumer Protection 142
Luana Vargas 142
Haruta Ovidiu University of Oradea 140
Tom Creswell Purdue University 140
Amy Ferriter State of Idaho 138
Charles T. and John R. Bryson 138
Daniel Herms The Ohio State University 138
Arnold T. Drooz USDA Forest Service 136
USDA Agricultural Research Service Archive USDA Agricultural Research Service 136
Julieta Brambila USDA APHIS PPQ 133
John A. Weidhass Virginia Polytechnic Institute and State University 132
Gérard Tavakilian Muséum National d’Histoire Naturelle, Paris, France 132
Richard Carter Valdosta State University 132
Eric R. Day Virginia Polytechnic Institute and State University 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
Jon Yuschock 126
DAFF Archive 125
Patricia M. Ciesla Forest Health Management International 125
David Jones University of Georgia 125
Ko Ko Maung 121
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
Bob Hammon Colorado State University 114
Keith Kanoti Maine Forest Service 113
Fabio Stergulc Università di Udine 113
Becca MacDonald Sault College 112
Troy Evans Great Smoky Mountains National Park 110
Larry R. Barber USDA Forest Service 109
Alan Windham University of Tennessee 109
Thomas Atkinson University of Texas at Austin 107
Ward Upham Kansas State University 104
Phillip Roberts University of Georgia 104
Edward Sikora Auburn University 103
Csaba Szaboky 103
Mariusz Sobieski 102
Kurt Ahlmark FDACS Division of Plant Industry 102
John Fisher Ohio Department of Agriculture 102
Patrick Marquez USDA APHIS PPQ 101
Louis Tedders USDA Agricultural Research Service 100
Deena Chadi University of New Haven 100
John Hartman University of Kentucky 99
James B. Hanson USDA Forest Service 96
Elmer Verhasselt 96
L.L. Berry 94
Andrew Koeser International Society of Arboriculture 93
Carey Minteer University of Arkansas 92
Scott Tunnock USDA Forest Service 92
USDA ARS Photo Unit USDA Agricultural Research Service 92
Michael Shephard USDA Forest Service 91
Tim Broschat University of Florida 90
Mohammed El Damir Pest Management 90
Cheryl Moorehead individual 89
Kevin Ong Texas AgriLife Extension Service 89
Phil Westra Colorado State University 89
James R. Allison Georgia Department of Natural Resources 87
Pedro Tenorio-Lezama 85
USDA Forest Service Forest Operations Research USDA Forest Service 85
Jiri Hulcr Michigan State University 84
Jan Liska Forestry and Game Management Research Institute 84
J.G. Davis 83
Rory Feeney Miccosukee Tribe of Indians of Florida 82
Thomas C. Croker USDA Forest Service 82
Nestor Yglesias South Florida Water Management District 81
Jil Swearingen USDI National Park Service 81
Ronald S. Kelley Vermont Department of Forests, Parks and Recreation 80
Thomas D. 'Tom' Landis USDA Forest Service 80
Rachel Brown University of Florida 80
David Riley University of Georgia 80
David Dickens University of Georgia 80
Lori Oberhofer National Park Service 79
Oliver T. Neher The Amalgamated Sugar Company 78
Fred Baker Utah State University 78
Samuel Glucksman 78
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
Ansel Oommen 75
Peggy Greb USDA Agricultural Research Service 75
David McComb USDA Forest Service 74
Brian Kunkel University of Delaware 73
G.E. Cardon 73
Jerald E. Dewey USDA Forest Service 72
Carroll E. Younce USDA Agricultural Research Service 72
USDA Forest Service - Forest Health Protection - St. Paul Archive USDA Forest Service 71
James D. Young USDA APHIS PPQ 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
Phil Sloderbeck Kansas State University 70
H C Ellis University of Georgia 70
Central Science Laboratory, Harpenden Archive British Crown 69
Randy Westbrooks U.S. Geological Survey 68
Andrea Atkinson National Park Service 68
National Interagency Fire Center Archive 67
E. Bradford Walker Vermont Department of Forests, Parks and Recreation 67
Bill McNee Wisconsin Dept of Natural Resources 66
Allen Bridgman South Carolina Department of Natural Resources 66
Jennifer C. Giron Duque University of Puerto Rico 66
Brian Little The University of Georgia 66
Albert (Bud) Mayfield USDA Forest Service 66
Roger Ryan USFS PNW Station 65
Dimitrios Avtzis NAGREF-Forest Research Institute 65
Mike Schomaker Colorado State Forest Service 64
Center for Disease Control Archive Centers for Disease Control and Prevention 64
Ricky Layson Ricky Layson Photography 63
Don Ferrin Louisiana State University Agricultural Center 63
Daniel R. Suiter University of Georgia 62
Billy Humphries Forest Resource Consultants, Inc. 62
Jim Stimmel Pennsylvania Department of Agriculture 62
Beat Forster Swiss Federal Institute for Forest, Snow and Landscape Research 62
Piero Amorati ICCroce - Casalecchio di Reno 62
Utah State University Archive Utah State University 62
Kevin D. Arvin 61
Dale Wade Rx Fire Doctor 61
Jeremy Greene Clemson University 61
Thomas E. Hinds USDA Forest Service 61
Natalie Hummel Louisiana State University AgCenter 60
Scott Roberts Mississippi State University 60
Zelimir Borzan University of Zagreb 60
Brian Olson Oklahoma State University 59
Keith Weller USDA Agricultural Research Service 59
Larry Osborne 59
Edward H. Holsten USDA Forest Service 59
USDA Forest Service Archive USDA Forest Service 59
Timothy Haley USDA Forest Service 58
Theodor D. Leininger USDA Forest Service 58
Doug Maguire Oregon State University 58
John D. Hodges Mississippi State University 58
Dan Tenaglia Missouriplants.com 58
David P. Shorthouse University of Alberta 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
Dani Barchana Self employed 57
Charles Ray Auburn University 57
M. O'Donnell and A. Cline California Department of Food and Agriculture 57
Herb Pilcher USDA Agricultural Research Service 56
Susan K. Hagle USDA Forest Service 56
Anyi Mazo-Vargas University of Puerto Rico 56
R.L. Croissant 56
North Carolina Forest Service Archive 56
Stephanie Sanchez 55
Carl Dennis Auburn University 54
Stephen F. Austin State University Archive Stephen F. Austin State University 54
John Triana Regional Water Authority 54
Steve L. Brown University of Georgia 53
Max Williamson USDA Forest Service 53
James Johnson Georgia Forestry Commission 52
Fred Brooks University of Hawaii at Manoa 52
Amy Benson U.S. Geological Survey 51
N.A. Irlbeck 51
John Moser USDA Forest Service 51
William D. Boyer USDA Forest Service 50
Molly Giesbrecht Texas A&M AgriLife Extension Service 50
Juliana Cardona-Duque University of Puerto Rico 50
Thomas B. Denholm New Jersey Department of Agriculture 50
Rayanne Lehman Pennsylvania Department of Agriculture 50
Tim Tigner Virginia Department of Forestry 50
R. Scott Cameron Advanced Forest Protection, Inc. 50
Daniela Lupastean University of Suceava 49
James Hayden FDACS Division of Plant Industry 49
Mark McMillan Colorado State University 48
Bob Kemerait University of Georgia 48
João Loureiro University de Trás-os-Montes e Alto Douro 47
Gary Wade University of Georgia 47
Lance S. Risley William Paterson University 47
R.W. Samson Purdue University 47
Francis Gwyn Jones 46
Nathan W. Gross University of Missouri 46
Gary Bauchan USDA-ARS 45
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
Michelle Grabowski University of Minnesota Extension - Horticulture 44
Deena Walters USDA APHIS PPQ CPHST ITP 44
Indira Singh USDA APHIS PPQ 42
Gary Peeples US Fish and Wildlife Service 42
Jody Fetzer Maryland National Capital Park and Planning Commission 42
Frantisek Soukup 42
M.A. Brick 41
Ladd Livingston Idaho Department of Lands 41
William A. Carothers USDA Forest Service 41
Elizabeth Willhite USDA Forest Service 41
Taina Litwak ARS, USDA 40
Winston Beck Iowa State University 40
Dawn Dailey O'Brien Cornell University 39
Michael C. Thomas Florida Department of Agriculture and Consumer Services 39
Harry O. Yates III USDA Forest Service 39
Robert Reed USGS 38
Mourad LOUADFEL Freelance 38
Arun T.P. 37
J.S. Quick 37
R.L. Hamblen 36
Steve McKeand North Carolina State University 36
Nancy Gregory University of Delaware 36
Karen Snover-Clift Cornell University 36
Andrew Derksen FDACS/DPI 36
Ryan Jones Colonial Williamsburg Foundation 36
USDA ARS European Biological Control Laboratory USDA ARS - European Biological Control Laboratory 35
Lisa Ames University of Georgia 35
Jonathan D. Eisenback Virginia Polytechnic Institute and State University 35
John W. Dooley USDA APHIS PPQ 35
Elizabeth Bella USDA Forest Service 35
Valerie Brej ISA Photos 35
Vladimir Dinets University of Miami 34
The Nature Conservancy Archive The Nature Conservancy 33
David Mohn Critters Page (Creatures Great and Small) 33
John Capinera University of Florida 33
Monica Elliott University of Florida 33
Cheryl Kaiser University of Kentucky 32
Stephen Bratkovich USDA Forest Service 32
Vanessa Richins About.com 32
Dragan Nestorovic elektra 32
Lisa Jameson U.S. Fish and Wildlife 31
Sonya Broughton Department of Agriculture & Food Western Australia 31
Bruce Moltzan USDA Forest Service 31
John W. Schwandt USDA Forest Service 31
David Parsons University of Wisconsin 31
Eli Sagor University of Minnesota 31
Eddie McGriff University of Georgia 31
Ary Farajollahi 30
Jessica Spencer 30
Mike Reding & Betsy Anderson USDA Agricultural Research Service 30
Cindy Roche 30
Rory Register Rory's Photography 30
Joe Murray Treebio.com 29
Larry Trekell 29
DAVID LEE 29
Walter Peraza Padilla National University of Costa Rica 29
Casey Sanders 29
David Adams Balancedrock Photography 29
J. Michael Moore University of Georgia 29
David Shetlar The Ohio State University 28
Gregory Parks 28
Wayne Brewer Auburn University 28
Clarissa Balbalian Mississippi State University 28
Ned Tisserat Colorado State University 28
Oscar Dooling USDA Forest Service 28
Daniel Miller USDA Forest Service 28
Tom Coleman USDA Forest Service 28
Jamie Nielsen University of Alaska Fairbanks, Cooperative Extension Service 28
Nikolai Sokolov 28
Linda Wilson University of Idaho 28
Nancy Dagley USDI National Park Service 28
Vicky Klasmer Instituto Nacional de Tecnologia Agropecuaria 28
Claes Hellqvist Swedish University of Agricultural Sciences 28
Kevin Enge Florida Fish and Wildlife Conservation Commission 28
Bruce W. Kauffman Tennessee Department of Agriculture 27
Charles Bartlett University of Delaware 27
Annemarie Smith ODNR Division of Forestry 27
José Luís Delgado 27
George Markin USDA Forest Service 27
University of Arkansas Forest Entomology Lab Archive University of Arkansas 27
Lyle Buss University of Florida 27
Matthew Zidek Texas A&M Agrilife Extension Service 27
gary yankech 27
George Hudler Cornell University 26
Robert J. Bauernfeind Kansas State University 26
Alberto Pantoja USDA Agricultural Research Service 26
Mat Pound USDA Agricultural Research Service 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
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
Ron Halstead Halstead Forestry & Realty, Inc. 25
Jake Farnum 25
O.P. Sharma 25
Loke T. Kok Virginia Polytechnic Institute and State University 25
Robert L. James USDA Forest Service 25
Greg Bartman USDA APHIS PPQ 25
Rachel McCarthy Cornell University - NEPDN 25
Dale Pollet Louisiana State University AgCenter 24
Stephen Ausmus USDA Agricultural Research Service 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
Ron Long Simon Fraser University 23
Victor Sarto i Monteys Servei de Proteccio dels Vegetals 23
Bob Farrah USDA Forest Service 23
USDA Forest Service - Region 4 - Intermountain Archive USDA Forest Service 23
Barbara Shew North Carolina State University 23
Duncan McClusky University of Georgia 23
Curtis Utley CSUE 23
Nicole Sanchez NCSU Cooperative Extension 22
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
Jonathan Armstrong University of Southern California 22
Esmat M. Hegazi University of Alexandria 22
Evgeny Akulov Russian Research Institute Of Plant Quarantine 22
Barb Corwin Turfgrass Diagnostics 22
Lauren Quinn 21
Steve Manning Invasive Plant Control 21
Joe Nicholson Nature photographer 21
Ministry of Agriculture and Regional Development Archive Ministry of Agriculture and Regional Development 21
James N. Long Utah State University 21
Laura Lazarus North Carolina Division of Forest Resources 21
Jeff Stachler The Ohio State University 21
Melody Keena USDA Forest Service 21
Gary L. Piper Washington State University 21
David T. Almquist University of Florida 21
William C. Nesmith University of Kentucky Research and Education Center 21
Susan Lueloff 21
Kansas Department of Agriculture Archive 21
GB Edwards Florida Department of Agriculture and Consumer Services 21
John Ruberson Kansas State University 21
Christina Romagosa Auburn University 20
Eric Prostko University of Georgia 20
Diane Davies University of Georgia 20
robert anderson 20
Caryn Rickel Institute of Invasive Bamboo Research 20
Sekh Sayantan Burdwan Eco Garden 20
Lindsey du Toit Washington State University 20
Kim Camilli Texas Forest Service 20
Gerald Wheeler USDA APHIS PPQ 20
Kira Metz USDA APHIS PPQ 20
USDA Forest Service Archive USDA Forest Service 20
David Knott 20
Richard A. Casagrande University of Rhode Island 20
Veli Pohjonen East Usambara Conservation Area Management Programme 20
Jared Spokowsky Indiana Department of Natural Resources 20
James Kalisch University of Nebraska 20
Lew Diehl 20
Richard Floyd Creative Ideas LLC 20
Florida Fish and Wildlife Conservation Commission Archive 19
Mike Pingleton University of Illinois at Urbana-Champaign 19
Dan Aamlid Norwegian Forest and Landscape Institute 19
Mark Atwater Weed Control Unlimited, Inc. 19
Eric LaGasa Washington State Department of Agriculture 19
Bradley Higbee Paramount Farming 19
University of Idaho Archive University of Idaho 19
Peter Wirtz 19
Allan Bullard USDA Forest Service 19
Dale E. Meyerdirk USDA APHIS PPQ 19
J. Jeffrey Mullahey University of Florida 19
Cheryl McCormick University of Florida 19
Felix Francis University of Delaware 19
Robert M. McPherson University of Georgia 19
Ronald D. Gitaitis University of Georgia 19
Stephen M. Garnsey USDA-ARS, South Atlantic Area 19
Bernd Blossey Cornell University 19
Katherine Parys USDA-ARS 18
Mississippi State University Archive Mississippi State University 18
Eric Erbe USDA Agricultural Research Service 18
Vazrick Nazari Canadian National Collection of Insects, Arachnids and Nematodes 18
Steven Lingafelter US National Museum, Smithsonian Institution, Washington, DC, USA 18
Margaret McGrath Cornell University 18
Ignazio Graziosi University of Kentucky 18
Elizabeth Dorman State of Michigan 18
Jonas Janner Hamann Universidade Federal de Santa Maria 18
Jack Randall Bishop Museum, Hawaii 18
Virginia Tech Learning Resources Center Virginia Polytechnic Institute and State University 18
Christopher Pierce USDA APHIS PPQ 18
Ward Strong BC Ministry of Forests 18
D.D. Cadahia Subdireccion General de Sanidad Vegetal 18
Vladimir Petko V.N. Sukachev Institute of Forest SB RAS 18
Jess Van Dyke Snail Busters, LLC 18
Gail Ruhl Purdue University 18
Lorne Curran 17
Samuel Wright Fairchild Tropical Garden 17
Jennifer Olson Oklahoma State University 17
Myron Adams Home Owner 17
Steven Conaway Penn State University 17
Giedrius Markevicius Lithuanian Entomological Society 17
H.R. Duke 17
P.F. Byrne 17
Robert Wick University of Massachusetts 17
Beverly Turner Jackson Minnesota 17
Zhihong Pan Galileo Group Inc. 17
U.S. Fish and Wildlife Service Archive US Fish and Wildlife Service 17
Boris Hrasovec Faculty of Forestry 17
Bob Nowierski Montana State University 17
Terry English USDA APHIS PPQ 17
Daniel H. Brown USDA Forest Service 17
James W. Byler USDA Forest Service 17
F.W. Howard University of Florida 17
Joe Eger Dow AgroSciences 17
Ajay Sharma University of Florida 17
Charles Turner USDA Agricultural Research Service 17
Doug Stone Mississippi State University 16
Thomas Smiley Bartlett Tree Experts 16
Michael Mengak University of Georgia 16
Paul Bertrand University of Georgia 16
Richard Sprenkel University of Florida 16
Bryan Jensen University of Wisconsin 16
Patrick Breen Oregon State University 16
Dennis Haugen USDA Forest Service 16
James W. Amrine Jr. West Virginia University 16
U. Mazzucchi Università di Bologna 16
Ken Walker Museum Victoria 16
Peter Bedker 16
J.H. Hofmeyr Citrus Research International 16
Skip Snow National Park Service 16
Ken Masten Georgia Forestry Commission 16
Juan Manuel Alvarez University of Idaho 15
Alex Pauvolid-Corrêa Fundação Oswaldo Cruz 15
Hector Mialma 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
Steve Clarke USDA Forest Service 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
Roger Schmidt University of Wisconsin-Madison 15
Ken A. Langeland University of Florida 15
Jim Skiera International Society of Arboriculture 15
Texas Forest Service Archive Texas Forest Service 15
Jack Dykinga USDA Agricultural Research Service 15
Lawrence Morris University of Georgia 14
Steve M. Brown University of Georgia 14
Jerrod Hein Kansas State University 14
Will Hudson University of Georgia 14
Yasmin Cardoza North Carolina State University 14
Rikhab Raj-Bhansali CAZRI 14
Bernard J. Raimo USDA Forest Service 14
Mark McGregor USDA Forest Service 14
Ron Jones North Carolina State University 14
Robert Trickel North Carolina 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
Norbert J. Cordeiro University of Illinois at Chicago 13
Scott Robinson Georgia Department of Natural Resources 13
James McGraw North Carolina State University 13
David R. Lance USDA APHIS PPQ 13
Gary Bernon USDA APHIS 13
USDA Forest Service - Pineville Archive USDA Forest Service 13
Leonard Newell USDA Forest Service 13
Karen Brown University of Florida 13
Kelly Oten North Carolina Forest Service 13
William Lambert University of Georgia 13
David Adams University of Georgia 13
Nisa Karimi Wisconsin Department of Natural Resources 13
Ignacio Baez USDA Agricultural Research Service 13
Willey Durden USDA Agricultural Research Service 13
Meg Williamson Clemson University 13
Tamla Blunt Colorado State University 12
SRS Webmaster Southern Research Station 12
Clinton Shock Oregon State University 12
Virginia Tech Plant Pathology Archive Virginia Polytechnic Institute and State University 12
Carol LaFayette Visualization Department, Texas A&M University College of Architecture 12
L.D. Dwinell USDA Forest Service 12
Paul E. Hennon USDA Forest Service 12
USDA Forest Service - Region 6 - Pacific Northwest Archive USDA Forest Service 12
Alex Mangini USDA Forest Service 12
Jim Jasinski Ohio State University Extension 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
Dennis Navea 12
Victor Ryabincov 12
Thomas Jung 12
Jijing Song and Juan Shi Beijing Forestry University 12
Mark Chisholm Aspen Tree Care Company 12
Emilie Bess USDA APHIS PPQ 12
Lars Sandved Dalen Norwegian Forest and Landscape Institute 12
Helena Giannini Miami Dade County 12
Sarah Vanek 11
Stephanie Adams The Morton Arboretum 11
Heidi Fry 11
Diane Alston Utah State University 11
Kristina Simms 11
Randall Blackburn Smithsonian Institution 11
L. Giunchedi Universita di Bologna 11
Robert F. Wittwer Oklahoma State University 11
North Carolina State University Archive North Carolina State University 11
Bob Richard USDA APHIS PPQ 11
S.A. Andrews USDA Forest Service 11
W.H. Bennett USDA Forest Service 11
John M. Staley USDA Forest Service 11
Donald M. Grosman Arborjet Inc. 11
Washington State University Archive Washington State University 11
Robert Lambe Virginia Polytechnic Institute and State University 11
Erik Stromberg Virginia Polytechnic Institute and State University 11
Dwight K. Lauer Auburn University 11
David M. Moehring Mississippi State University 11
Rebecca A. Melanson Louisiana State University AgCenter 10
John Olive Auburn University 10
Margery Daughtrey Cornell University 10
Wayne N. Dixon Florida Department of Agriculture and Consumer Services 10
Stan Diffie University of Georgia 10
Neal Spencer USDA Agricultural Research Service 10
Lee Miller University of Missouri 10
Rebecca Barocco University of Florida 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
Todd Watson Texas A&M University 10
Ruben Durán Washington State University 10
Boris Castro Texas A&M University 10
Peter L. Lorio, Jr. USDA Forest Service 10
Mike Ostry USDA Forest Service 10
Steve Passoa USDA APHIS PPQ 10
Donald F. Rogers North Carolina Division of Forest Resources 10
Dean Morewood Health Canada 10
Plutarco Echegoyen OIRSA 10
Paul Butts Georgia Forestry Commission 10
Roger Lopez-Chaves Universidad de Costa Rica 10
Duane Raver US Fish and Wildlife Service 10
California Department of Food and Agriculture Archive 10
Devon Pfeiffer 10
Rand Snyder 10
Gary Watson Morton Arboretum 10
Department of Primary Industries and Water, Tasmania Archive 10
Susan Pierce Trees Atlanta 10
Bartlett Tree Archives 10
Kelle Sullivan Florida Fish and Wildlife Conservation Commission 10
Gary Burfield None 9
John J. Mosesso National Biological Information Infrastructure 9
Howard F. Schwartz & Jillian M. Lang 9
Mike Lewis Center for Invasive Species Research 9
Marsha Ward Florida Fish and Wildlife Conservation Commission 9
Nathan Hobrath State of Alaska 9
Judy Slater 9
Andrew Petrie University of Toronto 9
J.A. Davidson 9
Central Science Laboratory Archive Crown Copyright 9
Fredric Miller Miller Joliet Junior College 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
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
Vince Belleci 9
Alec McClay McClay Ecoscience 9
Michael Bohne 9
Clair Merrit Purdue University 9
Edward Czerwinski Ontario Ministry of Natural Resources 9
Michelle Cram USDA Forest Service 9
James W. Smith USDA APHIS PPQ 9
James R. Meeker USDA Forest Service 9
Ann Murray University of Florida 9
Roland J. Stipes Virginia Polytechnic Institute and State University 9
Stephen Curry Lower Merion Twp. 9
Wood Product Insect Lab USFS, Gulfport, MS 9
Jason Walden 9
Frank Jurcik Bamboo Invasions 9
Norwegian Forest and Landscape Institute Archive 9
Christopher Asaro University of Georgia 9
Jeffrey Wilson USDA Agricultural Research Service 9
Ayanava Majumdar Alabama Cooperative Extension System 9
Nancy Hinkle University of Georgia 9
Sthephen A. Lewis Clemson University 9
Timothy Schubert Florida Department of Agriculture and Consumer Services 9
Houping Liu Michigan State University 9
Robert Richardson Michigan State University 8
J.P. Michaud Kansas State University 8
Paul Weston Cornell University 8
Julie Kikkert Cornell Cooperative Extension 8
Molly Swartwood Cornell University 8
Bill Stringer Clemson University 8
Jean L. Williams-Woodward University of Georgia 8
Barry Freeman Auburn University 8
Tim Murphy University of Georgia 8
Katherine Russell 8
Oswaldo Brito Independent Consultant 8
James Chatfield Ohio State University 8
J. L. Castner University of Florida 8
James D. Ellis University of Florida 8
Rudolf H. Scheffrahn University of Florida 8
I. Blakey Lockman USDA Forest Service 8
Peter A. Rush USDA Forest Service 8
USDA Forest Service - Region 10 - Alaska Archive USDA Forest Service 8
USDA APHIS PPQ Archive USDA APHIS PPQ 8
Brian Sullivan USDA APHIS PPQ 8
Anthony LeBude NC State University 8
Debbie Miller USDA Forest Service 8
Jeff Portwood Temple-Inland 8
Troy Kimoto Canadian Food Inspection Agency 8
Yuri Baranchikov Institute of Forest SB RASC 8
Trish Hanson Vermont Forestry Division 8
Stacey Leicht University of Connecticut 8
J.J. Tuset Instituto Valenciano de Investigaciones Agrarias 8
L. Navarro Instituto Valenciano de Investigaciones Agrarias 8
W.G. Ziller 8
UK Forestry Commission Archive 8
SCRI-Dundee Archive Scottish Crop Research Institute 8
Ollie Knott Georgia Forestry Commission 8
Jon Sweeney Natural Resources Canada 8
Kurt Stueber Max-Planck-Institute for Plant Breeding Research, Cologne 8
Tom Gray Canadian Forest Service 8
April Noble Antweb.org 8
Linda Lee University of South Carolina 8
Connie Strunk South Dakota State University 8
Art Wagner USDA - APHIS 8
Jenn Grieser New York City Department of Environmental Protection 8
HortNET Archive The Horticulture and Food Research Institute of New Zealand 8
Christopher Asaro Virginia Department of Forestry 8
D.R. Miller 8
Ian Kimber 8
Marja van der Straten NVWA Plant Protection Service 8
Samantha Anderson Everglades National Park 8
Brenda Lucas 8
Daniela Jiménez Fernández 8
*Pam *Fuller USGS 8
G.W. Buchleiter 8
N.S. Luepschen 8
Fernando Gallardo Huelva Forestry University 8
Stephanie Sopow Natural Resources Canada 8
Gary Kling University of Illinois 8
Ian Foley Montana Department of Agriculture 8
Diego Olmo Laboratori Sanitat Vegetal-Illes Balears 8
Ethel Dutky University of Maryland 7
Garrett Waugaman M-NCPPC Weed Warriors 7
Marilyn Sallee Texas Invasives Org 7
Michel Ménard INRA 7
Claudia Nischwitz Utah State University 7
Paul Webb 7
Vladimir Gouli University of Vermont 7
G.M. Buxton 7
Ida Paul Small Grain Institute 7
Mandy Tu The Nature Conservancy 7
Georgette Smith Canadian Forest Service 7
Bill Gallup 7
Juan Shi Beijing Forestry University 7
Connie Gray GA-EPPC 7
Jeremy Lee 7
Victor Cordova City of Houston, Urban Forestry Division 7
Galip Çagtay Tufanoglu General Directorate of Forestry 7
Hania Berdys 7
David Nicholls dcnicholls.com 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
John Connett University of Idaho 7
Joe Boggs 7
Alan Flynn New Zealand Ministry of Agriculture and Forestry 7
Anne W. Gideon 7
Billy Craft 7
Nez Perce BioControl Center Archive Nez Perce BioControl Center 7
Canadian Forest Service Archive Canadian Forest Service 7
John Kraus 7
Fred Nation Weeks Bay National Estuarine Research Reserve 7
Kevin Dodds USDA Forest Service 7
Richard Turcotte USDA Forest Service 7
Kathy Smith Ohio State University Extension 7
J. Brasington USDA Forest Service 7
Bob Oakes USDA Forest Service 7
John Andrew Wagner International Society of Arboriculture 7
Tom Miller University of Kentucky 7
Ulla Jarlfors University of Kentucky Research and Education Center 7
Kenneth Seebold University of Kentucky 7
Charles Drake Virginia Polytechnic Institute and State University 7
Ellen Lake University of Delaware 7
Jo O'Keefe 7
Ben Phillips Michigan State University 7
Sally Miller The Ohio State University 7
Euguene Stoermer 7
Ontario Ministry of Natural Resources Archive 7
Byron Rhodes University of Georgia 7
Brian Little Wingate University 7
David Nance USDA Agricultural Research Service 7
David Hall USDA Agricultural Research Service 7
Jason Gatch University of Georgia 7
Mark Czarnota University of Georgia 7
Robert L. Johnson Cornell University 7
Milton Rush Plant Pathology, Louisiana State University 7
Christina DiFonzo Michigan State University 6
Thomas Eubank Mississippi State University 6
Paul E. Skelley FDACS-DPI-Florida State Collection of Arthropods 6
Patrick H. Brose Clemson University 6
Bodie Pennisi University of Georgia 6
Jeffrey J. Jackson University of Georgia 6
Holly Thornton University of Georgia 6
Brad Haire University of Georgia 6
Stanley Culpepper University of Georgia 6
Tim Varnedore University of Georgia 6
Gary Buckingham USDA Agricultural Research Service 6
Billy R. Wiseman USDA Agricultural Research Service 6
Sanford D. Porter USDA-ARS, Center for Medical, Agricultural and Veterinary Entomology 6
Mike Munster 6
Negin Almassi Forest Preserves of Cook County 6
Tim Krynak Cleveland Metroparks 6
John Janssen 6
Fort Worth Nature Center and Refuge Archive City of Fort Worth 6
Craig Hicks 6
Anne McMillen-Jackson FLFWCC 6
Michelle Villafranca Fort Worth Nature Center & Refuge 6
Allen Szalanski 6
Corrie Pieterson University of Florida 6
Raghavan Charudattan University of Florida 6
Victor Ramey University of Florida 6
Colette Jacono UF 6
Justin Meier International Society of Arboriculture 6
Billy Higginbotham Texas AgriLife Extension Service 6
D. W. French University of Minnesota 6
Tom Laurent USDA Forest Service 6
Forrest L. Oliveria USDA Forest Service 6
R.C. Morris USDA Forest Service 6
Robert A. Haack USDA Forest Service 6
Borys M. Tkacz USDA Forest Service 6
Gregg DeNitto USDA Forest Service 6
Michael Montgomery USDA Forest Service 6
Robert F. Bassett USDA Forest Service 6
David G. Robinson USDA APHIS PPQ 6
OSU Extension Slide Set Archives The Ohio State University 6
J.C. Wells North Carolina State University 6
Robert D. Richard USDA APHIS PPQ 6
E.G. Kuhlman USDA Forest Service 6
Takumasa Kondo University of California - Davis 6
Montana State University Archive Montana State University 6
Roger Anderson Duke University 6
Jim Story Montana State University 6
Barry Lyons Canadian Forest Service 6
Alan Grant Dept Environmental Protection 6
International Potato Center Archive 6
H.H. Triantaphyllou Nemapix picture set 6
John N. Gibbs Forestry Commission 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
Greg Leach International Paper 6
J.D. Roberts 6
Kristen Riolo Priceless Memories 6
Michigan Department of Agriculture 6
Bob Lepak 6
Kevin Taylor 6
Carol J Nichols 6
Harriet Perry Gulf Coast Research Laboratory 6
Temel Gokturk Artvin Forest 6
Peter Stephen Citrus Research International 6
Forest Research United Kingdom Forestry Commission 6
Douglas Barbe California Department of Food and Agriculture 6
Thomas Elias 6
Lilia De Guzman 6
K.A. Barbarick 6
Rich Sabulsky 6
Michael Kangas NDSU - North Dakota Forest Service 6
Carol Hayes Burnt Fork Watershed Alliance 6
Stephen Lew University of California - Berkeley 6
Bruce Newhouse 6
Ernesto Moya 6
Dan Dinkler U.S. Fish and Wildlife (retired) 6
Amy Diercks 6
Mike Zapata Frisco Urban Forestry Board 6
Kristopher Abell University of Massachusetts 6
Brian MacGregor 6
Lester E. Dickens 6
Scott Famous DoD 6
Jim Tresouthick Village of Homewood 6
Dave Leonard Dave Leonard Consulting Arborist, Inc. 6
Joe Berry none 6
Sam Markell North Dakota State University 5
Jessica Price Natural Resources Canada 5
Laura Rogers 5
Howard F. Schwartz & Mark S. McMillan 5
Felicien Amakpe Cercle nature et développement CENAD NG0 5
lopez romero sergio neiker tecnalia 5
Carol Cox Mexico Beach Artificial Reef Assoc, Inc 5
gina mckinnon family/home 5
Christina Hoddle University of California - Riverside 5
Mary Foley Benson USDA; Property of the Smithsonian Institution, Department of Entomology 5
Nava Tabak Invasive Plant Atlas of New England 5
Chip Bates Georgia Forestry Commission 5
Mark S. Hoddle University of California - Riverside 5
Marianne Prue Ohio Department of Natural Resources - Division of Forestry 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
Dennis Teague U.S. Air Force 5
Angela Walther 5
Claudia Dolinski Universidade Estadual do Norte Fluminense 5
Philip Rusted Thurlow Countryside Management (r&d) 5
Susan Turner British Columbia Ministry of Forests 5
Rosemarie De Clerck-Floate Agriculture and Agri-Food Canada 5
Biologische Bundesanstalt für Land- und Forstwirtschaft Archive Biologische Bundesanstalt für Land- und Forstwirtschaft 5
Bart Wursten Ndundu Lodge Vumba 5
J.W. Walters 5
G. Marchoux INRA Station de Pathologie Végétale 5
A.T. Jones Scottish Crop Research Institute 5
A. van Frankenhuijzen Plant Protection Service 5
Dr. Augustin Landesanstalt für Pflanzenbau und Pflanzenschutz: Mainz 5
Walter Stahel Environmental Bay of Plenty 5
State Plant Pathology Institute of Denmark Archive 5
Bill Godfrey Georgia Forestry Commission 5
Giuseppina Pellizzari Faculty of Agriculture, Dept.Entomology 5
American Phytopathological Society Archive American Phytopathological Society 5
T.W. Mew International Rice Research Institute 5
G. Morvan INRA, Montfavet 5
P.G. Psallidas Benaki Institute, Athens 5
Robert Hedburg St. Louis County Land Department 5
Jack Clark University of California - Davis 5
Kristine Travis 5
Gary M. Stolz US Fish and Wildlife Service 5
Jerry Asher USDI Bureau of Land Management 5
Donna R. Ellis University of Connecticut 5
Heather Faubert University of Rhode Island 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
Richard Smith US Fish and Wildlife Service 5
Sunil Ranasinghe Alberta Government 5
Nadia Da Ros 5
Robert Childs University of Massachusetts 5
Lynn Jones and Nathan Havill USDA Forest Service 5
Scott Horn USDA Forest Service 5
R.F. Scharpf USDA Forest Service 5
David R. McKay USDA APHIS PPQ 5
Toby Petrice USDA Forest Service 5
Virgil Davis USDA Forest Service 5
Philip McDonald USDA Forest Service 5
Albert Kais USDA Forest Service 5
Diane Hildebrand USDA Forest Service 5
Donald J. Goheen USDA Forest Service 5
Jack C. Nord USDA Forest Service 5
T.W. Bretz USDA Forest Service 5
James P. Cuda University of Florida 5
Clint Hardy University of Kentucky 5
Paul Vincelli University of Kentucky 5
Ernest C. Bernard University of Tennessee 5
Ashley Lamb Virginia Polytechnic Institute and State University 5
John R. Seiler Virginia Polytechnic Institute and State University 5
Laurence I. Miller Virginia Polytechnic Institute and State University 5
Maia McGuire University of Florida/Florida Sea Grant 5
Sangmi Lee Hasbrouck Insect Collection, Arizona State University 5
Erik Draper Ohio State University Extension 5
Scott Carlson University of Georgia 5
Dewey Lee University of Georgia 5
A.A. Newton USDA Agricultural Research Service 5
M.G. Klein USDA Agricultural Research Service 5
Wilson Faircloth USDA Agricultural Research Service 5
Susan Wineriter USDA Agricultural Research Service 5
Hugo A. Cordo USDA ARS - South American Biological Control Laboratory 5
Ted D. Center USDA Agricultural Research Service 5
Christine A. Bennett USDA Agricultural Research Service 5
Michael Toews University of Georgia 5
Ben Jackson University of Georgia 5
Ray Hicks Screven County Extension Service 5
B. Merle Shepard Clemson University 5
Kent Loeffler Cornell University 5
Bruce Bosley Colorado State University 5
Jeffrey Eickwort Florida Department of Agriculture and Consumer Services 5
Dr. Lynn Clark and Anna Gardner Iowa State University 5
William H. Hoffard USDA Forest Service 5
Bernard H. Ebel USDA Forest Service 5
USDA Forest Service - Ashville Archive USDA Forest Service 5
Doug Landis Michigan State University 5
James Smith Mississippi State University 5
Jack T. Reed Mississippi State University 4
Louisiana State University Archive Louisiana State University 4
J. L. Kaminski 4
L. M. Marsh Florida Department of Agriculture and Consumer Services 4
Jian-qing Ding Cornell University 4
Wayne A. Sinclair Cornell University 4
Shimat Joseph University of Georgia 4
Hunt Sanders University of Georgia 4
Paul Smith University of Georgia 4
Todd Mathes Department of Natural Resources 4
Min B. Rayamajhi USDA Agricultural Research Service 4
Clyde Dowler USDA Agricultural Research Service 4
John W. Everest Auburn University 4
Auburn University Archive Auburn University 4
Robert W. Matthews University of Georgia 4
Craig Sheppard University of Georgia 4
Blair Janson The Ohio State University 4
r dyer 4
Dave Fuller Montana Fish, Wildlife and Parks 4
Jack Grubaugh University of Memphis 4
Brian Zimmerman Ohio State University Museum of Biological Diversity 4
Nate Tessler EnviroScience, Inc. 4
Cleveland Metroparks 4
Virginia Tech Weed Identification Guide Archive Virginia Polytechnic Institute and State University 4
Shep Zedaker Virginia Polytechnic Institute and State University 4
Robert J. Richardson North Carolina State University 4
A.R. Chase North Carolina State University 4
Diane Reaver Virginia Polytechnic Institute and State University 4
Frank A. Hale University of Tennessee 4
Jack Ranney University of Tennessee 4
Kenneth Raffa University of Wisconsin 4
Fred Stephen University of Arkansas 4
Anne Vitoreli University of Florida 4
Rodrigo Diaz University of Florida 4
Cathy Stewart USDA Forest Service 4
John R. Tolliver USDA Forest Service 4
David W. Johnson USDA Forest Service 4
John Pronos USDA Forest Service 4
Yun Wu USDA Forest Service 4
Donald Duerr USDA Forest Service 4
Paul H. Peacher USDA Forest Service 4
Daniel J. Kepich USDA APHIS PPQ 4
Stephen W. Bullington USDA APHIS PPQ 4
Richard W. Hansen USDA APHIS PPQ 4
Craig Ramsey USDA APHIS PPQ 4
David G. Nielsen The Ohio State University 4
Kira Zhaurova USDA APHIS PPQ 4
Ohio State Univ Ohio Ag. research & Development Center 4
R.S. Peterson USDA Forest Service 4
S.R. Andrews 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
Nancy Gillette USDA Forest Service 4
USDA NRCS Archive USDA NRCS 4
Anne Miller Soil and Water Conservation 4
James Hoffman 4
Peter Harris Agriculture and Agri-Food Canada 4
Peter Room The University of Queensland 4
David L. Overhulser Oregon Department of Forestry 4
Hariet Hinz & Ester Gerber CABI Biosciences 4
Bonnie Harper-Lore Federal Highway Administration 4
J. Johnson University of Idaho 4
J. Guyot INRA, Pointe-à-Pitre 4
Gerhard Elsner Biologische Bundesanstalt für Land- und Forstwirtschaft 4
François-Xavier Saintonge Forest Health Department 4
Jean-Paul Grandjean Office National des Forêts 4
UConn Plant Database www.hort.uconn.edu/plants 4
Gerald D. Carr Carr Botanical Consultation 4
M. Goto 4
R. Grimm 4
S.L. Goldson MAFTech 4
Richard C. Edwards Purdue University 4
Volcani Center Archive Agricultural Research Organization 4
University of New South Wales Archive University of New South Wales 4
SRPV, Nice Archive Les Services Régionaux de la Protection des Végétaux 4
ENSA-Montpellier Archive Ecole nationale supérieure agronomique de Montpellier 4
INRA-Bordeaux Archive Institut National de la Recherche Agronomique 4
Bayer Pflanzenschutz Archive Bayer Pflanzenschutz 4
Svetlana Y. Gouli University of Vermont 4
Tom Hall Georgia Forestry Commission 4
Carole Cheah Connecticut Agricultural Experiment Station 4
Pflanzenschutzamt Weil-am-Rhein Archives Archive 4
Dr. Backhaus Biologische Bundesanstalt für Land- und Forstwirtschaft 4
C.E. Seliskar 4
G.W. Wallis 4
Canadian Food Inspection Agency Archive 4
Heinz USA Archive 4
A. Vigouroux ENSA 4
Alexander Purcell University of California 4
M.A. van den Berg Institute for Tropical and Subtropical Crops 4
C.A. de Klerk Nietvoorbij Institute for Viticulture and Oenology 4
Biolog. Bundesans., Inst. f. Pflanzenschutz im Weinbau Archive 4
Forestry Canada, Ottawa Archive 4
Larry Line Mostly Moths of Maryland 4
University of Alaska - Anchorage Archive University of Alaska - Anchorage 4
Wen Baldwin Lake Mead Boat Owners Association 4
International Rice Research Institute Archive 4
Malcolm Storey BioImages - Virtual Field-Guide 4
Joel E. Miles Office of Environmental Response and Coordination 4
Brian Perchtel 4
Leah Bauer USDA Forest Service Northern Research Station 4
Arlo Kane Florida Fish and Wildlife Conservation Commission 4
Mohammad Mirnezhad Leiden University 4
J. C. Bell USDA Forest Service 4
Lindsey Lewis U.S. Fish and Wildlife 4
Dennis Riggs Denrig, Inc. 4
Craig Haskell USGS 4
Rick Roseman 4
Pierre Yves Laroche 4
Andrew Gentry Invasive Plant Control, Inc. 4
Jeff Sexton Madisonville Country Club 4
Scott Golden Boulder County Parks & Open Space 4
Graham Trim Freelance 4
Bill Vander Weit City of Champaign 4
Buyung Hadi South Dakota State University 4
Rene Marcinhes 4
New York Department of Environmental Conservation Archive 4
Tim O'Neill Cheltec, Inc. 4
Gvozdev Antony free artist 3
Clif Brown 3
Brett Billings US Fish and Wildlife Service 3
Shiva Shankar Prapanna solutions 3
Lizbeth Gonzalez Ericsson 3
William Shuster United States Environmental Protection Agency 3
Vicky Quick National Biological Information Infrastructure 3
G.D. Franc 3
Paul Trible 3
F.C. Schweissing 3
Jeff Weidhaas Bruce Terminix 3
Chris Malumphy The Food and Environment Research Agency 3
Scott Yollis 3
Josh Shoemaker 3
Marne Titchenell The Ohio State University 3
Robert Lee 3
Kurtis Byrne Mesa Turf Masters LLC 3
James Coupland FarmForest Research 3
Dr. A. D. Ali Davey Tree Expert Company 3
guy meilleur better Tree Care Associates 3
Cheri Abraham MicroTech, LLC 3
James Allison naturalist 3
Chris Schultz 3
Tymo Muus 3
Nico Franz University of Puerto Rico 3
Melissa Miller USGS Volunteer 3
Scott Boback Dickenson College 3
Michael Jordan Alabama Department of Environmental Management 3
Karen Ackles KMA Images 3
Jose Hernandez USDA NRCS PLANTS Database 3
Suzanne Foster USDA NRCS PLANTS Database 3
Nick Dimmock University of Northampton 3
Vanessa Howard Portland State University 3
Michael T. Smith 3
S.P. van Vuuren Citrus Research International 3
Joe Jernigan Alabama Wildlife and Freshwater Fisheries 3
D.G. Passmore 3
David Karp 3
Bruce Fritz 3
Daniel Wojcik 3
John Stommel 3
Tarique Sani SANIsoft 3
IPM Thailand Archive 3
Nanna Borcherdt Sitka Conservation Society 3
Patrick Loes 3
Stanton Gill University of Maryland Cooperative Extension 3
Donna Richardson Royal Pest Management 3
Mirza Dautbasic University of Sarajevo 3
Kristin Peterson OEB Dept., Harvard University 3
David Seerveld AAAnimal Control 3
Barry Cooke Natural Resources Canada 3
Donnie Edwards 3
Maresha Seusy 3
Jacob Vance Emory University 3
Dell O. Clark California Department of Food and Agriculture 3
Roger S Key English Nature 3
University of Illinois at Urbana-Champaign Archive University of Illinois at Urbana-Champaign 3
Rick West Canadian Forest Service 3
Antoine Guyonnet Lépidoptères Poitou-Charentes 3
Università di Bologna Archive Università di Bologna 3
The Natural History Museum, London Archive 3
Gordon Rodda U.S. Geological Survey 3
James Braselton 3
G. Perrotta Università di Calabria 3
F. Dosba INRA, Bordeaux 3
Ferenc Viranyi Godollo University of Agricultural Sciences 3
J.C. Hopkins 3
J. Dunez 3
Christer Olsson Swedish Board of Agriculture 3
A.C. Magyarosy 3
Eric Rebek Oklahoma State University 3
André Bolay St. Fédér. de Recherches Agronomiques de Changins 3
Kenneth Calcote Mississippi Department of Agriculture and Commerce 3
Martin Moses University of Idaho 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
Shawn Good Vermont Department of Fish and Wildlife 3
Alan Isler Georgia Forestry Commission 3
GEVORK ARAKELIAN LA County Dept. Agriculture 3
INRA-Angers Archive Institut National de la Recherche Agronomique 3
Università di Napoli Archive Università di Napoli 3
INRA-Versailles Archive Institut National de la Recherche Agronomique 3
Institut Technique de la Betterave Archive 3
Ministry of Agricuilture and Rural Affairs Archive Ministry of Agricuilture and Rural Affairs 3
R. Stace-Smith 3
S.D. Lyda 3
R. Flores Instituto de Agroquimica y Tecnologia de Alimentos 3
M. Koizumi Fruit Trees Research Station 3
K.V. Raman CIP, Lima (PE) 3
P.J. Chapman New York State Agricultural Experiment Station 3
Claude-Bernard Malphettes Institut National de la Recherche Agronomique 3
Luciano Nuccitelli Servizio Fitosanitario Regione Lazio 3
David McClenaghan Commonwealth Scientific and Industrial Research Organization 3
Lisa Anness LDA Associates 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
J. Louvet 3
Alex. H. Purcell University of California - Berkeley 3
tia smith 3
Debbie Miller Davey Tree Expert Company 3
Lisa Tewksbury University of Rhode Island 3
Bob Davidson 3
Sally Tucker 3
Lytton John Musselman Old Dominion University 3
Leslie Chong Simon Fraser University 3
C.A. Frazier 3
CABI Biosciences Archive CABI Biosciences 3
Jim Space Pacific Island Ecosystems at Risk (PIER) 3
Tommaso Branzanti 3
W.C. Guy 3
I.G. (Hardi) Oberholzer ARC - Plant Protection Research Institute 3
David Mooter Prairie Silvics, Inc. 3
Michael Masiuk 3
USDI BLM Archive USDI Bureau of Land Management 3
Ed Messerlie USDA Forest Service 3
Martin MAcKenzie USDA Forest Service 3
Brian Sugerman The Ohio State University 3
Barbara Bloetscher The Ohio State University 3
Monica Lewandowski Ohio State 3
R.D. Milholland North Carolina State University 3
Gary Brown USDA APHIS PPQ 3
Stephen Davis USDA APHIS PPQ 3
C.L. Hodges USDA Forest Service 3
Wayne Adkins USDA Forest Service 3
Phil Crawl USDA Forest Service 3
Richard Spriggs USDA Forest Service 3
Laura Merrill USDA Forest Service 3
Bruce Hostetler USDA Forest Service 3
Andris Eglitis USDA Forest Service 3
Brian Geils USDA Forest Service 3
Dave Holland USDA Forest Service 3
Brian Cabrera University of Florida, Ft. Lauderdale 3
Doug Caldwell Univ. Florida 3
Julio Medal University of Florida 3
Lynne Rieske-Kinney 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
Julie Beale University of Kentucky 3
Bill Mesner University of Kentucky Research and Education Center 3
E.A. Milus University of Arkansas 3
Anton Baudoin Virginia Polytechnic Institute and State University 3
Brantlee Spakes Richter University of Florida 3
Chris Bergh Virginia Polytechnic Institute and State University 3
Mark Duff Texas Forest Service 3
Texas A&M AgriLife Extension Service Archive Texas A&M University 3
Steven Spitzer 3
Larry McCord Santee Cooper 3
Michelle Bowman 3
Scot Nelson University of Hawaii at Manoa 3
Anna Soper 3
D. Manastyrski 3
Lori L. Wallace 3
Faith Appelquist Tree Quality, LLC 3
Robert Emanuel Clean Water Services 3
California Department of Fish and Game Archive 3
Howard Jelks USGS 3
Trish Murphey NC Department of Environment ad Natural Resources 3
Dave Kelch Ohio Sea Grant 3
Elizabeth Jackson 3
Lalnunpuii Parte Krishi Vigyan Kendra 3
Linda Schroeder The Pacific Northwest Shell Club 3
Snyers Chris Flemish Entomological Society 3
Hillsborough County Parks, Recreation and Conservation Department Archive 3
Arkansas Game and Fish Commission Archive 3
Florida Sea Grant Archive 3
Stefano Sacchi Regional Plant Protection Service 3
Ross Recker University of Wisconsin-Madison 3
A. Burns Weathersby University of Georgia 3
James O. Howell University of Georgia 3
Johnny Crawford University of Georgia 3
Brian Prechtel USDA Agricultural Research Service 3
Doug Wilson USDA Agricultural Research Service 3
H. Gross USDA Agricultural Research Service 3
Tony Caesar USDA Agricultural Research Service 3
B.J. Goates USDA Agricultural Research Service 3
Reid Frederick USDA Agricultural Research Service 3
Barry Fitzgerald USDA Agricultural Research Service 3
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R. Wielopolski 1
Bernard Kuhajda Department of Biological Sciences, University of Alabama, Tuscaloosa, AL 1
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Jason Morrell 1
Dan Bean 1
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Edward Beasley University of Georgia 1
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C Doggett 1
Sharon Dowdy University of Georgia 1
Jim Midcap University of Georgia 1
Carmen Rodriguez University of Georgia 1
Mike Dyche University of Georgia 1
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Trial Gardens Archive University of Georgia 1
Scott NeSmith University of Georgia 1
Darbie Granberry University of Georgia 1
Elizabeth Goulet Cornell University 1
Brian Eshenaur Cornell Universtiy IPM 1
Dr. Shabbir Rizvi Florida Department of Agriculture and Consumer Services 1
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Ralph D. Bagwell Louisiana State University 1
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