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1858 Photographers

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Name Organization Images
Forest & Kim Starr Starr Environmental 10087
Leslie J. Mehrhoff University of Connecticut 6141
Howard F. Schwartz Colorado State University 5395
Mary Ellen (Mel) Harte 5226
Karan A. Rawlins University of Georgia 5146
Robert Vidéki Doronicum Kft. 4488
Chris Evans River to River CWMA 4081
Rebekah D. Wallace University of Georgia 3260
Florida Division of Plant Industry Archive Florida Department of Agriculture and Consumer Services 3060
Whitney Cranshaw Colorado State University 3018
Joseph O'Brien USDA Forest Service 2916
Alfred Viola Northeastern University 2476
Joy Viola Northeastern University 2425
Ohio State Weed Lab Archive The Ohio State University 2056
Richard Old XID Services, Inc. 2035
Pest and Diseases Image Library 2005
Bruce Ackley The Ohio State University 1934
Lacy L. Hyche Auburn University 1891
Joseph M. DiTomaso University of California - Davis 1862
Milan Zubrik Forest Research Institute - Slovakia 1785
Joseph Berger 1683
William M. Ciesla Forest Health Management International 1671
Dave Powell USDA Forest Service 1533
Floyd W. Shockley University of Georgia 1385
David Cappaert Michigan State University 1238
Paul Bachi University of Kentucky Research and Education Center 1152
The Dow Gardens Archive Dow Gardens 1133
Terry L Spivey Terry Spivey Photography 1108
Gyorgy Csoka Hungary Forest Research Institute 1101
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
David Stephens 915
John M. Randall The Nature Conservancy 906
Joseph LaForest University of Georgia 890
Charles T. Bryson USDA Agricultural Research Service 874
Steve Dewey Utah State University 867
Charles Olsen USDA APHIS PPQ 851
Jeffrey W. Lotz Florida Department of Agriculture and Consumer Services 839
Jerry A. Payne USDA Agricultural Research Service 823
USDA Forest Service - Ogden Archive USDA Forest Service 806
Gerald Holmes Valent USA Corporation 774
John Ruter University of Georgia 754
Richard Webb Self-employed horticulurist 752
Cesar Calderon USDA APHIS PPQ 730
Pennsylvania Department of Conservation and Natural Resources - Forestry Archive 718
David J. Moorhead University of Georgia 714
John D. Byrd Mississippi State University 686
University of Georgia Plant Pathology Archive University of Georgia 678
Jim Baker North Carolina State University 646
Sturgis McKeever Georgia Southern University 645
Julia Scher USDA APHIS PPQ 626
Jan Samanek State Phytosanitary Administration 602
Eric Coombs Oregon Department of Agriculture 594
Robert L. Anderson USDA Forest Service 594
Steven Katovich USDA Forest Service 589
Paul Wray Iowa State University 556
Graves Lovell Alabama Department of Conservation and Natural Resources 543
Petr Kapitola State Phytosanitary Administration 534
William M. Brown Jr. 530
Lesley Ingram 522
Ronald F. Billings Texas Forest Service 521
Wendy VanDyk Evans 511
USDA Forest Service - Region 8 - Southern Archive USDA Forest Service 502
J.R. Baker & S.B. Bambara North Carolina State University 490
Mary Ann Hansen Virginia Polytechnic Institute and State University 471
James H. Miller & Ted Bodner Southern Weed Science Society 451
John Cardina The Ohio State University 437
USDA Forest Service - Northeastern Area Archive USDA Forest Service 435
James Solomon USDA Forest Service 415
Gerald J. Lenhard Louiana State Univ 411
Department of Plant Pathology Archive North Carolina State University 407
James Henderson Golden Delight Honey 388
Johnny N. Dell 387
Erich G. Vallery USDA Forest Service - SRS-4552 384
Charles Averre North Carolina State University 370
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
Chazz Hesselein Job Seeker 354
Susan Ellis 351
Natasha Wright Florida Department of Agriculture and Consumer Services 345
Rob Routledge Sault College 342
Gary Alpert Harvard University 342
Brian Lockhart USDA Forest Service 336
Bonsak Hammeraas Bioforsk - Norwegian Institute for Agricultural and Environmental Research 335
Stanislaw Kinelski 331
Lorraine Graney Bartlett Tree Experts 331
USDA APHIS PPQ Archive USDA APHIS PPQ 322
Bill Cook Michigan State University 312
Edward L. Barnard Florida Department of Agriculture and Consumer Services 301
Ken Chamberlain The Ohio State University 301
Caleb Slemmons University of Maine 298
International Society of Arboriculture International Society of Arboriculture 294
Vern Wilkins Self employed 286
William Jacobi Colorado State University 279
Catherine Herms The Ohio State University 277
USDA Forest Service - North Central Research Station Archive USDA Forest Service 276
Minnesota Department of Natural Resources Archive Minnesota Department of Natural Resources 274
Russ Ottens University of Georgia 273
R.J. Reynolds Tobacco Company Slide Set R.J. Reynolds Tobacco Company 271
Steven Valley Oregon Department of Agriculture 269
Jim Occi BugPics 265
Barbara Tokarska-Guzik University of Silesia 263
Theodore Webster USDA Agricultural Research Service 263
Frank Peairs Colorado State University 253
Nancy Loewenstein Auburn University 251
Chris Schnepf University of Idaho 244
G. Keith Douce University of Georgia 241
USDA Forest Service Archive USDA Forest Service 234
Barry Rice sarracenia.com 233
Jessica Lawrence Eurofins Agroscience Services 230
Ferenc Lakatos University of West-Hungary 228
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 Tenaglia Missouriplants.com 217
Dan Clark USDI National Park Service 217
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 209
Terry S. Price Georgia Forestry Commission 208
Elizabeth Bush Virginia Polytechnic Institute and State University 207
Scott Bauer USDA Agricultural Research Service 205
Donald Owen California Department of Forestry and Fire Protection 205
Edward L. Manigault Clemson University Donated Collection 202
Maja Jurc University of Ljubljana 200
Ronald Smith Auburn University 194
Mark Adams Downey Trees 193
Donald Groth Louisiana State University AgCenter 193
John C. French Sr. Retired, Universities:Auburn, GA, Clemson and U of MO 189
Alton N. Sparks, Jr. University of Georgia 188
James Denny Ward USDA Forest Service 188
Chuck Bargeron University of Georgia 186
Dennis Haugen 180
Manfred Mielke USDA Forest Service 178
Louis-Michel Nageleisen Département de la Santé des Forêts 177
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
USDA PLANTS Database USDA NRCS PLANTS Database 162
William Fountain University of Kentucky 162
Norman E. Rees USDA Agricultural Research Service - Retired 161
John H. Ghent USDA Forest Service 161
USDA Forest Service Archive USDA Forest Service 160
Gerard D. Hertel West Chester University 160
Bonnie Million National Park Service 158
Dennis J. Giardina Florida Fish and Wildlife Conservation Commission 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 154
H.J. Larsen 153
E. Richard Hoebeke Cornell University 152
Randy Cyr Greentree 148
Susan Ellis USDA APHIS PPQ 144
Connecticut Agricultural Experiment Station Archive Connecticut Agricultural Experiment Station 143
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 137
Arnold T. Drooz USDA Forest Service 136
USDA Agricultural Research Service Archive USDA Agricultural Research Service 136
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
Julieta Brambila USDA APHIS PPQ 130
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
David Jones University of Georgia 125
Yuan-Min Shen Taichung District Agricultural Research and Extension Station 120
Landesforstpräsidium Sachsen Archive 119
Tom Heutte USDA Forest Service 119
David B. Langston University of Georgia 117
Franklin Bonner USFS (ret.) 115
Eugene E. Nelson 115
Keith Kanoti Maine Forest Service 113
Fabio Stergulc Università di Udine 113
Thomas Atkinson Pest Management Research 107
Troy Evans Great Smoky Mountains National Park 105
Larry R. Barber USDA Forest Service 105
Csaba Szaboky 103
Alan Windham University of Tennessee 103
Jon Yuschock 101
Louis Tedders USDA Agricultural Research Service 100
Phillip Roberts University of Georgia 98
James B. Hanson USDA Forest Service 96
Mary Burrows Montana State University 96
Luana Vargas International Society of Arboriculture 95
L.L. Berry 94
Andrew Koeser International Society of Arboriculture 93
Carey Minteer University of Georgia 92
USDA ARS Photo Unit USDA Agricultural Research Service 92
Scott Tunnock USDA Forest Service 92
Michael Shephard USDA Forest Service 91
Cheryl Moorehead individual 90
Phil Westra Colorado State University 89
Kenneth R. Law USDA APHIS PPQ 88
James R. Allison Georgia Department of Natural Resources 86
Pedro Tenorio-Lezama 85
Jason Brock University of Georgia 85
Jiri Hulcr Michigan State University 85
Jan Liska Forestry and Game Management Research Institute 84
J.G. Davis 83
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
David Riley University of Georgia 80
David Dickens University of Georgia 80
Rachel Brown University of Florida 80
Lori Oberhofer National Park Service 79
Fred Baker Utah State University 78
Samuel Glucksman 78
Kevin Ong Texas AgriLife Extension Service 78
University of Georgia Archive University of Georgia 77
Andrea Battisti Universita di Padova 77
M.E. Bartolo 77
Ko Ko Maung Asiatic Agricultural Industries Pte Ltd. 77
Robert Dzwonkowski 76
Arthur E. Miller USDA APHIS PPQ 76
John Hartman University of Kentucky 76
Peggy Greb USDA Agricultural Research Service 75
David McComb USDA Forest Service 74
Brian Kunkel University of Delaware 73
G.E. Cardon 73
Andrew J. Boone South Carolina Forestry Commission 72
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
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
Mariusz Sobieski 65
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
Piero Amorati ICCroce - Casalecchio di Reno 62
Utah State University Archive Utah State University 62
Ricky Layson Ricky Layson Photography 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
Daniel R. Suiter University of Georgia 62
Thomas E. Hinds USDA Forest Service 61
Kevin D. Arvin 61
Zelimir Borzan University of Zagreb 60
Scott Roberts Mississippi State University 60
Keith Weller USDA Agricultural Research Service 59
Edward H. Holsten USDA Forest Service 59
USDA Forest Service Archive USDA Forest Service 59
Theodor D. Leininger USDA Forest Service 58
John D. Hodges Mississippi State University 58
David P. Shorthouse University of Alberta 58
Dale Wade Rx Fire Doctor 58
Doug Maguire Oregon State University 58
Montana Statewide Noxious Weed Awareness and Education Program Archive Montana State University 58
Art Cushman USDA; Property of the Smithsonian Institution, Department of Entomology 57
Todd Pfeiffer Klamath County Weed Control 57
North Carolina Forest Service Archive 56
Jeremy Greene Clemson University 56
R.L. Croissant 56
Anyi Mazo-Vargas University of Puerto Rico 56
Herb Pilcher USDA Agricultural Research Service 56
Susan K. Hagle USDA Forest Service 56
Charles Ray Auburn University 55
Deena Chadi William Paterson University 55
Patricia M. Ciesla Forest Health Management International 55
John Triana Regional Water Authority 54
Stephen F. Austin State University Archive Stephen F. Austin State University 54
Carl Dennis Auburn University 54
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
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
Sandra Jensen Cornell University 49
Mark McMillan Colorado State University 48
Lance S. Risley William Paterson University 48
Dimitrios Avtzis NAGREF-Forest Research Institute 47
Natalie Hummel Louisiana State University AgCenter 47
Gary Wade University of Georgia 47
Bob Hammon 46
Mohammed El Damir Pest Management 46
Bruce Watt University of Maine 46
Francis Gwyn Jones 46
Marisa Williams University of Arkansas, Fayetteville 45
Frank E French Georgia Southern University 45
Kenneth E. Gibson USDA Forest Service 45
Daniel Adam Office National des Forêts 44
Georgia Forestry Commission Archive Georgia Forestry Commission 44
Dani Barchana Self employed 44
Frantisek Soukup 42
Gary Peeples US Fish and Wildlife Service 42
Jody Fetzer New York Botanical Garden 42
Ladd Livingston Idaho Department of Lands 41
M.A. Brick 41
William A. Carothers USDA Forest Service 41
Elizabeth Willhite USDA Forest Service 41
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
R.L. Hamblen 36
Oliver T. Neher University of Idaho 36
Arun T.P. 36
Harry O. Yates III USDA Forest Service 36
Steve McKeand North Carolina State University 36
Nancy Gregory University of Delaware 36
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
Valerie Brej ISA Photos 35
Vladimir Dinets University of Miami 34
Mourad LOUADFEL Plant Protection 34
David Mohn Critters Page (Creatures Great and Small) 33
The Nature Conservancy Archive The Nature Conservancy 32
Dragan Nestorovic elektra 32
Vanessa Richins About.com 32
Stephen Bratkovich USDA Forest Service 32
John W. Schwandt USDA Forest Service 31
Eli Sagor University of Minnesota 31
Michelle Grabowski University of Minnesota Extension - Horticulture 31
Lisa Jameson U.S. Fish and Wildlife 31
David Parsons University of Wisconsin 31
Sonya Broughton Department of Agriculture & Food Western Australia 31
Cindy Roche 30
Rory Register Rory's Photography 30
Eddie McGriff University of Georgia 30
Mike Reding & Betsy Anderson USDA Agricultural Research Service 30
J. Michael Moore University of Georgia 29
Joe Murray Treebio.com 29
Larry Trekell 29
DAVID LEE 29
Casey Sanders 29
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
Wayne Brewer Auburn University 28
Oscar Dooling USDA Forest Service 28
Daniel Miller USDA Forest Service 28
George Markin USDA Forest Service 27
Andrew Derksen FDACS/DPI 27
Lyle Buss University of Florida 27
Annemarie Smith ODNR Division of Forestry 27
José Luís Delgado 27
University of Arkansas Forest Entomology Lab Archive University of Arkansas 27
W. Billen Pflanzenbeschaustelle, Weil am Rhein 26
Plant Protection Service Archive Plant Protection Service 26
Yuri Yashin achatina.ru 26
Sasa Kunovac University of Sarajevo 26
Gino Nearns University of New Mexico 26
Bruce W. Kauffman Tennessee Department of Agriculture 26
Alberto Pantoja USDA Agricultural Research Service 26
Mat Pound USDA Agricultural Research Service 26
Ned Tisserat Colorado State University 25
Robert L. James USDA Forest Service 25
Tom Coleman USDA Forest Service 25
Loke T. Kok Virginia Polytechnic Institute and State University 25
John L. Foltz University of Florida 25
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
South Dakota Department of Agriculture 24
Dale Pollet Louisiana State University AgCenter 24
Hannah Burrack North Carolina State University 24
USDA Forest Service - Region 4 - Intermountain Archive USDA Forest Service 23
Bob Farrah USDA Forest Service 23
Curtis Utley CSUE 23
Stephen Ausmus USDA Agricultural Research Service 23
Duncan McClusky University of Georgia 23
UAF Cooperative Extension Archive University of Alaska - Fairbanks 23
Bruce Moltzan Missouri Department of Conservation 23
Victor Sarto i Monteys Servei de Proteccio dels Vegetals 23
Ron Long Simon Fraser University 23
Amy Benson U.S. Geological Survey 22
Ulrich Zunke University of Hamburg 22
Evgeny Akulov Russian Research Institute Of Plant Quarantine 22
Esmat M. Hegazi University of Alexandria 22
Jonathan Armstrong University of Southern California 22
Steve Manning Invasive Plant Control 22
Don Ferrin Louisiana State University Agricultural Center 22
Fitz Clarke 22
Edward Sikora Auburn University 22
John Guyon USDA Forest Service 22
Anthony D. White The Ohio State University 22
USDA APHIS PPQ Archive USDA APHIS PPQ 22
Melody Keena USDA Forest Service 21
Jeff Stachler The Ohio State University 21
GB Edwards Florida Department of Agriculture and Consumer Services 21
John Ruberson University of Georgia 21
David T. Almquist University of Florida 21
William C. Nesmith University of Kentucky Research and Education Center 21
Lauren Quinn 21
Joe Nicholson Nature photographer 21
Ministry of Agriculture and Regional Development Archive Ministry of Agriculture and Regional Development 21
Gary L. Piper Washington State University 21
James N. Long Utah State University 21
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
James Kalisch University of Nebraska 20
Lew Diehl 20
Walter Peraza Padilla Universidad Nacional, Costa Rica 20
Jared Spokowsky New York State Department of Agriculture and Markets 20
Kim Camilli Texas Forest Service 20
Diane Davies University of Georgia 20
Eric Prostko University of Georgia 20
Karen Snover-Clift Cornell University 20
Christina Romagosa Auburn University 20
Gerald Wheeler USDA APHIS PPQ 20
USDA Forest Service Archive USDA Forest Service 20
Allan Bullard USDA Forest Service 19
Dale E. Meyerdirk USDA APHIS PPQ 19
Kira Metz USDA APHIS PPQ 19
Bernd Blossey Cornell University 19
Robert M. McPherson University of Georgia 19
Stephen M. Garnsey USDA-ARS, South Atlantic Area 19
J. Jeffrey Mullahey University of Florida 19
Cheryl McCormick University of Florida 19
Mark Atwater Weed Control Unlimited, Inc. 19
Eric LaGasa Washington State Department of Agriculture 19
Mike Pingleton University of Illinois at Urbana-Champaign 19
Florida Fish and Wildlife Conservation Commission Archive 19
Jess Van Dyke Snail Busters, LLC 19
Elmer Verhasselt 19
Barb Corwin Turfgrass Diagnostics 19
University of Idaho Archive University of Idaho 19
Bradley Higbee Paramount Farming 19
Peter Wirtz 19
D.D. Cadahia Subdireccion General de Sanidad Vegetal 18
Richard Floyd Creative Ideas LLC 18
Vladimir Petko V.N. Sukachev Institute of Forest SB RAS 18
Virginia Tech Learning Resources Center Virginia Polytechnic Institute and State University 18
Cheryl Kaiser University of Kentucky 18
Mississippi State University Archive Mississippi State University 18
Christopher Pierce USDA APHIS PPQ 18
Terry English USDA APHIS PPQ 17
Daniel H. Brown USDA Forest Service 17
James W. Byler USDA Forest Service 17
Charles Turner USDA Agricultural Research Service 17
F.W. Howard University of Florida 17
Beverly Turner Jackson Minnesota 17
O.P. Sharma NCIPM, New Delhi. India 17
Zhihong Pan Galileo Group Inc. 17
Lorne Curran 17
Samuel Wright Fairchild Tropical Garden 17
Jennifer Olson Oklahoma State University 17
P.F. Byrne 17
H.R. Duke 17
Robert Wick University of Massachusetts 17
Boris Hrasovec Faculty of Forestry 17
Bob Nowierski Montana State University 17
James W. Amrine Jr. West Virginia University 16
Patrick Breen Oregon State University 16
U. Mazzucchi Università di Bologna 16
Ken Masten Georgia Forestry Commission 16
Peter Bedker 16
J.H. Hofmeyr Citrus Research International 16
Richard Sprenkel University of Florida 16
Michael Mengak University of Georgia 16
Paul Bertrand University of Georgia 16
Doug Stone Mississippi State University 16
Dennis Haugen USDA Forest Service 16
Sandy Kegley USDA Forest Service 15
Jane Taylor USDA Forest Service 15
W. Robert Maple USDA Forest Service 15
Jack Dykinga USDA Agricultural Research Service 15
Ken A. Langeland University of Florida 15
Jim Skiera International Society of Arboriculture 15
Juan Manuel Alvarez University of Idaho 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
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
Alex Pauvolid-Corrêa Fundação Oswaldo Cruz 14
S.K. McDonald 14
R.W. Samson Purdue University 14
Aaron Bergdahl North Dakota Forest Service/North Dakota State University 14
Rob Andress Department of Conservation & Natural Resources 14
Texas Forest Service Archive Texas Forest Service 14
Rachel McCarthy Cornell University - NEPDN 14
Lawrence Morris University of Georgia 14
Steve M. Brown University of Georgia 14
Will Hudson University of Georgia 14
Eric Erbe USDA Agricultural Research Service 14
Bernard J. Raimo USDA Forest Service 14
Mark McGregor USDA Forest Service 14
Steve Clarke USDA Forest Service 14
David R. Lance USDA APHIS PPQ 13
Gary Bernon USDA APHIS 13
James McGraw North Carolina State University 13
USDA Forest Service - Pineville Archive USDA Forest Service 13
Leonard Newell USDA Forest Service 13
Willey Durden USDA Agricultural Research Service 13
William Lambert University of Georgia 13
David Adams University of Georgia 13
Ignacio Baez USDA Agricultural Research Service 13
Karen Brown University of Florida 13
Marko Kostanjevec Biotechnical Faculty 13
Robert Benjamin None 13
Kate Leifheit International Society of Arboriculture 13
Michael Barron National Park Service 13
S. K. Mohan 13
Natalia Kirichenko 13
Ward Strong BC Ministry of Forests 13
European and Mediterranean Plant Protection Organization Archive 13
Eric Engbretson US Fish and Wildlife Service 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
U.S. Geological Survey Archive U.S. Geological Survey 13
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
Tom Creswell Purdue University 12
Paolo Mazzei 12
Agroscope FAL Reckenholz Archive Swiss Federal Research Station for Agroecology and Agriculture 12
J.M. Bové INRA Centre de Recherches de Bordeaux 12
Jijing Song and Juan Shi Beijing Forestry University 12
Thomas Jung 12
Victor Ryabincov 12
Alan Mills 12
Clinton Shock Oregon State University 12
Mark Chisholm Aspen Tree Care Company 12
Helena Giannini Miami Dade County 12
Lars Sandved Dalen Norwegian Forest and Landscape Institute 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
Tamla Blunt Colorado State University 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
S.A. Andrews USDA Forest Service 11
Bob Richard USDA APHIS PPQ 11
John M. Staley USDA Forest Service 11
Dwight K. Lauer Auburn University 11
David M. Moehring Mississippi State University 11
W.H. Bennett USDA Forest Service 11
Donald M. Grosman Texas Forest Service 11
Erik Stromberg Virginia Polytechnic Institute and State University 11
Robert Lambe Virginia Polytechnic Institute and State University 11
Dan Aamlid Forest and Landscape 11
Heidi Fry 11
Katherine Parys Louisiana State University 11
Dennis Navea 11
Randall Blackburn Smithsonian Institution 11
Kristina Simms 11
L. Giunchedi Universita di Bologna 11
Robert F. Wittwer Oklahoma State University 11
Washington State University Archive Washington State University 11
Dean Morewood Health Canada 10
Ruben Durán Washington State University 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
Paul Butts Georgia Forestry Commission 10
Rebecca A. Melanson Louisiana State University AgCenter 10
Devon Pfeiffer 10
Lindsey du Toit Washington State University 10
Susan Pierce Trees Atlanta 10
Bartlett Tree Archives 10
Gary Watson Morton Arboretum 10
Skip Snow National Park Service 10
Darrell Ross Oregon State University 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
Tracy Wootten University of Delaware 10
Charles Hoysa Virginia Cooperative Extension 10
Alison Fox University of Florida 10
Boris Castro Texas A&M University 10
Todd Watson Texas A&M 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
USDA Forest Service Archive USDA Forest Service 10
Mike Ostry USDA Forest Service 10
Steve Passoa USDA APHIS PPQ 10
James W. Smith USDA APHIS PPQ 9
North Carolina State University Archive North Carolina State University 9
James R. Meeker USDA Forest Service 9
Christopher Asaro University of Georgia 9
Timothy Schubert Florida Department of Agriculture and Consumer Services 9
Ayanava Majumdar Alabama Cooperative Extension System 9
Jeffrey Wilson USDA Agricultural Research Service 9
Roland J. Stipes Virginia Polytechnic Institute and State University 9
Ann Murray University of Florida 9
John J. Mosesso National Biological Information Infrastructure 9
Howard F. Schwartz & Jillian M. Lang 9
Meg Williamson Clemson University 9
Mike Lewis Center for Invasive Species Research 9
Marsha Ward Florida Fish and Wildlife Conservation Commission 9
J.A. Davidson 9
Andrew Petrie University of Toronto 9
Central Science Laboratory Archive Crown Copyright 9
guy meilleur better tree care 9
Fredric Miller Miller Joliet Junior College 9
Bob Rabaglia Maryland Department of Agriculture 9
Clive Shirley Hidden Forest Designs 9
Kerrie L. Kyde Maryland Department of Natural Resources 9
A. Eppler Justus-Liebig Universität 9
Sthephen A. Lewis Clemson University 9
M. Clerjeau INRA, Centre de Recherches de Bordeaux 9
J.K. Brown University of Arizona 9
T. Azeri Plant Protection Research Institute 9
Petr Srutka Czech University of Agriculture - Prague 9
Edward Czerwinski Ontario Ministry of Natural Resources 9
Jacques Regad Département de la Santé des Forêts 9
Vince Belleci 9
Clair Merrit Purdue University 9
Michael Bohne 9
Alec McClay McClay Ecoscience 9
Jeff Portwood Temple-Inland 8
Yuri Baranchikov Institute of Forest SB RASC 8
Stacey Leicht University of Connecticut 8
Troy Kimoto Canadian Food Inspection Agency 8
W.G. Ziller 8
UK Forestry Commission Archive 8
J.J. Tuset Instituto Valenciano de Investigaciones Agrarias 8
L. Navarro Instituto Valenciano de Investigaciones Agrarias 8
U.S. Fish and Wildlife Service Archive US Fish and Wildlife Service 8
J.P. Michaud Kansas State University 8
SCRI-Dundee Archive Scottish Crop Research Institute 8
Jon Sweeney Natural Resources Canada 8
Tom Gray Canadian Forest Service 8
Jenn Grieser New York City Department of Environmental Protection 8
Ollie Knott Georgia Forestry Commission 8
Linda Lee University of South Carolina 8
Connie Strunk South Dakota State University 8
HortNET Archive The Horticulture and Food Research Institute of New Zealand 8
Ian Kimber 8
D.R. Miller 8
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Nava Tabak Invasive Plant Atlas of New England 5
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A.R. Chase North Carolina State University 4
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R.D. Milholland North Carolina State University 3
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Gary Brown USDA APHIS PPQ 3
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H. Gross USDA Agricultural Research Service 3
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tia smith 3
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