| Photographer |
Number of Images |
| Howard F. Schwartz |
5362 |
| Robert Vidéki |
4233 |
| Mary Ellen (Mel) Harte |
4224 |
| Forest & Kim Starr |
3517 |
| Chris Evans |
3312 |
| Division of Plant Industry Archive |
3060 |
| Karan A. Rawlins |
3008 |
| Whitney Cranshaw |
2655 |
| Joseph O'Brien |
2648 |
| Ohio State Weed Lab Archive |
2058 |
| Richard Old |
2034 |
| Pest and Diseases Image Library |
2005 |
| Milan Zubrik |
1785 |
| William M. Ciesla |
1666 |
| Joseph M. DiTomaso |
1606 |
| Dave Powell |
1533 |
| Lacy L. Hyche |
1436 |
| Floyd W. Shockley |
1385 |
| The Dow Gardens Archive |
1134 |
| David Cappaert |
1097 |
| Joseph Berger |
1096 |
| Clemson University - USDA Cooperative Extension Slide Series |
1057 |
| Andrej Kunca |
1041 |
| Joy Viola |
1024 |
| United States National Collection of Scale Insects Photographs Archive |
991 |
| Terry Spivey |
937 |
| Alfred Viola |
933 |
| Paul Bachi |
926 |
| James H. Miller |
903 |
| John M. Randall |
896 |
| Charles T. Bryson |
873 |
| Gyorgy Csoka |
869 |
| Steve Dewey |
867 |
| Joseph LaForest |
838 |
| Terry L Spivey |
831 |
| Jerry A. Payne |
824 |
| USDA Forest Service - Ogden Archive |
807 |
| Richard Webb |
752 |
| Rebekah D. Wallace |
736 |
| Cesar Calderon |
720 |
| Pennsylvania Department of Conservation and Natural Resources - Forestry Archive |
719 |
| David J. Moorhead |
711 |
| John D. Byrd |
686 |
| Charles Olsen |
685 |
| University of Georgia Plant Pathology Archive |
679 |
| Julia Scher |
626 |
| Jeffrey W. Lotz |
619 |
| Sturgis McKeever |
606 |
| Robert L. Anderson |
598 |
| Petr Kapitola |
597 |
| Leslie J. Mehrhoff |
582 |
| Graves Lovell |
561 |
| Paul Wray |
556 |
| Jan Samanek |
549 |
| William M. Brown Jr. |
532 |
| USDA Forest Service - Region 8 Archive |
504 |
| Jim Baker |
501 |
| Ronald F. Billings |
496 |
| Steven Katovich |
495 |
| J.R. Baker & S.B. Bambara |
490 |
| Ted Bodner |
460 |
| John Cardina |
437 |
| USDA Forest Service - Northeastern Area Archive |
435 |
| James Solomon |
415 |
| Department of Plant Pathology Archive |
408 |
| Gerald J. Lenhard |
404 |
| Mary Ann Hansen |
400 |
| James Henderson |
388 |
| Wendy VanDyk Evans |
378 |
| Johnny N. Dell |
376 |
| David Gent |
367 |
| Tony Pernas |
359 |
| Paul Bolstad |
358 |
| USDA Forest Service - Rocky Mountain Region Archive |
358 |
| Natasha Wright |
345 |
| Gary Alpert |
344 |
| Brian Lockhart |
336 |
| Stanislaw Kinelski |
331 |
| Frank Peairs |
323 |
| USDA APHIS PPQ Archive |
322 |
| Bill Cook |
312 |
| Susan Ellis |
312 |
| Ken Chamberlain |
301 |
| Edward L. Barnard |
301 |
| William Jacobi |
279 |
| Catherine Herms |
277 |
| USDA Forest Service - North Central Research Station Archive |
276 |
| Russ Ottens |
275 |
| Minnesota Department of Natural Resources Archive |
274 |
| R.J. Reynolds Tobacco Company Slide Set |
271 |
| Barbara Tokarska-Guzik |
263 |
| Theodore Webster |
263 |
| K. George Beck & James Sebastian |
261 |
| Charles Averre |
252 |
| Chris Schnepf |
244 |
| Bonsak Hammeraas |
243 |
| G. Keith Douce |
243 |
| USDA Forest Service Archive |
234 |
| Barry Rice |
233 |
| Ferenc Lakatos |
228 |
| Kenneth M. Gale |
225 |
| Merle Shepard, Gerald R.Carner, and P.A.C Ooi |
224 |
| Jim Occi |
222 |
| Hannes Lemme |
220 |
| Dan Tenaglia |
217 |
| Brytten Steed |
217 |
| Rocky Mountain Research Station/Forest Pathology Archive |
213 |
| Lesley Ingram |
211 |
| Nancy Loewenstein |
208 |
| Terry Price |
208 |
| Erich G. Vallery |
206 |
| Scott Bauer |
205 |
| Edward L. Manigault |
202 |
| A. Steven Munson |
200 |
| Maja Jurc |
200 |
| Elizabeth Bush |
197 |
| David Stephens |
195 |
| Ronald Smith |
194 |
| Alton N. Sparks, Jr. |
188 |
| James Denny Ward |
188 |
| Chuck Bargeron |
185 |
| Dennis Haugen |
180 |
| Manfred Mielke |
178 |
| Louis-Michel Nageleisen |
177 |
| Tom DeGomez |
174 |
| Lynn Sosnoskie |
173 |
| Darren Blackford |
172 |
| Linda Haugen |
170 |
| Gil Wojciech |
170 |
| USDA APHIS PPQ Archive |
168 |
| Norbert Frank |
167 |
| Donald Groth |
166 |
| John H. Ghent |
162 |
| USDA PLANTS Database |
162 |
| Norman E. Rees |
161 |
| Gerard D. Hertel |
160 |
| USDA Forest Service Archive |
160 |
| Howard Ensign Evans |
158 |
| Bryan Kotwica |
158 |
| R.K. Jones |
157 |
| Bonnie Million |
156 |
| Donald Owen |
155 |
| H.J. Larsen |
153 |
| E. Richard Hoebeke |
152 |
| Randy Cyr |
149 |
| Susan Ellis |
144 |
| Connecticut Agricultural Experiment Station Archive |
143 |
| Herbert A. "Joe" Pase III |
141 |
| Haruta Ovidiu |
140 |
| Charles T. and John R. Bryson |
138 |
| Amy Ferriter |
138 |
| Daniel Herms |
137 |
| Arnold T. Drooz |
136 |
| John A. Weidhass |
132 |
| Paul A. Mistretta |
130 |
| Mark Adams |
129 |
| Mark Frey |
128 |
| DAFF Archive |
127 |
| Steve Hurst |
126 |
| David Jones |
125 |
| John Ruter |
121 |
| USDA ARS Archive |
120 |
| Landesforstpräsidium Sachsen Archive |
119 |
| Eric Coombs |
119 |
| Tom Heutte |
119 |
| David B. Langston |
117 |
| Eugene E. Nelson |
116 |
| Fabio Stergulc |
113 |
| Dan Clark |
111 |
| Eric R. Day |
111 |
| Doug Page |
110 |
| Keith Kanoti |
110 |
| Thomas Atkinson |
107 |
| Richard Carter |
107 |
| Troy Evans |
105 |
| Larry R. Barber |
104 |
| Alan Windham |
100 |
| Louis Tedders |
100 |
| James B. Hanson |
98 |
| L.L. Berry |
94 |
| Carey Minteer |
92 |
| USDA ARS Photo Unit |
92 |
| Scott Tunnock |
92 |
| Michael Shephard |
91 |
| Cheryl Moorehead |
90 |
| Phil Westra |
89 |
| Kenneth R. Law |
88 |
| James R. Allison |
87 |
| Pedro Tenorio-Lezama |
85 |
| Jiri Hulcr |
85 |
| J.G. Davis |
83 |
| Thomas C. Croker |
82 |
| Jil M. Swearingen |
81 |
| David Riley |
80 |
| Thomas D. "Tom" Landis |
80 |
| Nestor Yglesias |
79 |
| Lori Oberhofer |
79 |
| Fred Baker |
78 |
| Kevin Ong |
78 |
| Andrea Battisti |
77 |
| University of Georgia Archive |
77 |
| M.E. Bartolo |
77 |
| Robert Dzwonkowski |
76 |
| Peggy Greb |
75 |
| David McComb |
74 |
| Arthur E. Miller |
74 |
| G.E. Cardon |
73 |
| Jerald E. Dewey |
72 |
| Carroll E. Younce |
72 |
| H C Ellis |
71 |
| USDA Forest Service - Forest Health Protection - St. Paul Archive |
71 |
| Gerald Holmes |
71 |
| Pam Fuller |
70 |
| Raymond Gill |
70 |
| Great Smoky Mountains National Park Resource Management Archive |
69 |
| Central Science Laboratory, Harpenden Archive |
69 |
| E. Bradford Walker |
67 |
| National Interagency Fire Center Archive |
67 |
| Randy Westbrooks |
67 |
| Jan Liska |
66 |
| Roger Ryan |
65 |
| Jennifer C. Girón Duque |
64 |
| Center for Disease Control Archive |
64 |
| Allen Bridgman |
64 |
| Mike Schomaker |
64 |
| Andrea Atkinson |
63 |
| Mary Burrows |
63 |
| Albert (Bud) Mayfield |
63 |
| Daniel R. Suiter |
62 |
| Utah State University Archive |
62 |
| Jim Stimmel |
62 |
| Billy Humphries |
62 |
| Beat Forster |
62 |
| Ricky Layson |
62 |
| Piero Amorati |
62 |
| Thomas E. Hinds |
61 |
| Kevin D. Arvin |
61 |
| Zelimir Borzan |
60 |
| Scott Roberts |
60 |
| Keith Weller |
59 |
| Andrew J. Boone |
59 |
| USDA Forest Service Archive |
59 |
| Edward H. Holsten |
59 |
| Theodor D. Leininger |
58 |
| Montana Statewide Noxious Weed Awareness and Education Program Archive |
58 |
| Doug Maguire |
58 |
| Dale Wade |
58 |
| John D. Hodges |
58 |
| David P. Shorthouse |
58 |
| Art Cushman |
57 |
| North Carolina Forest Service Archive |
56 |
| Herb Pilcher |
56 |
| R.L. Croissant |
56 |
| Anyi Mazo-Vargas |
56 |
| Susan K. Hagle |
56 |
| Ronald S. Kelley |
55 |
| Patricia M. Ciesla |
55 |
| Stephen F. Austin State University Archive |
54 |
| Carl Dennis |
54 |
| John Triana |
54 |
| Steve L. Brown |
53 |
| Max Williamson |
53 |
| Jessica Lawrence |
53 |
| Fred Brooks |
52 |
| N.A. Irlbeck |
51 |
| Timothy Haley |
51 |
| John Moser |
51 |
| Tim Tigner |
50 |
| Rayanne Lehman |
50 |
| William D. Boyer |
50 |
| Thomas B. Denholm |
50 |
| Juliana Cardona-Duque |
50 |
| Daniela Lupastean |
49 |
| Lance S. Risley |
48 |
| Mark McMillan |
48 |
| James Johnson |
47 |
| Gary Wade |
47 |
| Natalie Hummel |
47 |
| Francis Gwyn Jones |
46 |
| Kenneth E. Gibson |
45 |
| Marisa Williams |
45 |
| R. Scott Cameron |
44 |
| Daniel Adam |
44 |
| Todd Pfeiffer |
44 |
| Georgia Forestry Commission Archive |
44 |
| Gary Peeples |
42 |
| Jody Fetzer |
42 |
| M.A. Brick |
41 |
| William A. Carothers |
41 |
| Ladd Livingston |
41 |
| Michael C. Thomas |
39 |
| Robert Reed |
38 |
| J.S. Quick |
37 |
| Steve McKeand |
36 |
| R.L. Hamblen |
36 |
| Lisa Ames |
35 |
| Elizabeth Bella |
35 |
| USDA ARS European Biological Control Laboratory |
35 |
| Jonathan D. Eisenback |
35 |
| John W. Dooley |
35 |
| Vladimir Dinets |
34 |
| David Mohn |
33 |
| Harry O. Yates III |
33 |
| Vanessa Richins |
32 |
| Dragan Nestorovic |
32 |
| Stephen Bratkovich |
32 |
| John W. Schwandt |
31 |
| Sonya Broughton |
31 |
| David Parsons |
31 |
| Lisa Jameson |
31 |
| Eli Sagor |
31 |
| Rory Register |
30 |
| Eddie McGriff |
30 |
| Mike Reding & Betsy Anderson |
30 |
| Cindy Roche |
30 |
| J. Michael Moore |
29 |
| Yuan-Min Shen |
29 |
| Casey Sanders |
29 |
| Linda Wilson |
29 |
| Oscar Dooling |
28 |
| Joe Murray |
28 |
| Nancy Fraley |
28 |
| Daniel Miller |
28 |
| U.S. Geological Survey Archive |
28 |
| Wayne Brewer |
28 |
| Jamie Nielsen |
28 |
| Bruce W. Kauffman |
27 |
| University of Arkansas Forest Entomology Lab Archive |
27 |
| George Markin |
27 |
| José Luís Delgado |
27 |
| Annemarie Smith |
27 |
| Alberto Pantoja |
26 |
| Plant Protection Service Archive |
26 |
| Sasa Kunovac |
26 |
| W. Billen |
26 |
| Gino Nearns |
26 |
| Dennis J. Giardina |
26 |
| Mat Pound |
26 |
| Yuri Yashin |
26 |
| Robert L. James |
25 |
| Biologische Bundesanstalt für Land- und Forstwirtschaft Archive |
25 |
| Christopher Hogger |
25 |
| Ron Halstead |
25 |
| Loke T. Kok |
25 |
| Brian Kunkel |
25 |
| Frank M. Riley, Jr. |
25 |
| Arun T.P. |
25 |
| Julieta Brambila |
24 |
| Dale Pollet |
24 |
| Bob Farrah |
23 |
| USDA Forest Service - Region 4 Archive |
23 |
| UAF Cooperative Extension Archive |
23 |
| Stephen Ausmus |
23 |
| Duncan McClusky |
23 |
| Ron Long |
23 |
| Victor Sarto i Monteys |
23 |
| Curtis Utley |
23 |
| Bruce Moltzan |
23 |
| John L. Foltz |
23 |
| USDA APHIS PPQ Archive |
22 |
| Ulrich Zunke |
22 |
| Esmat M. Hegazi |
22 |
| Evgeny Akulov |
22 |
| John Guyon |
22 |
| Anthony D. White |
22 |
| Jonathan Armstrong |
22 |
| GB Edwards |
21 |
| James N. Long |
21 |
| Joe Nicholson |
21 |
| Ministry of Agriculture and Regional Development Archive |
21 |
| Jeff Stachler |
21 |
| David T. Almquist |
21 |
| Gary L. Piper |
21 |
| Frank E French |
20 |
| Lew Diehl |
20 |
| Veli Pohjonen |
20 |
| Eric Prostko |
20 |
| Kim Camilli |
20 |
| Bernd Blossey |
20 |
| Richard A. Casagrande |
20 |
| USDA Forest Service Archive |
20 |
| Gerald Wheeler |
20 |
| Christina Romagosa |
20 |
| Laura Lazarus |
20 |
| Diane Davies |
20 |
| Ned Tisserat |
19 |
| Dale E. Meyerdirk |
19 |
| Eric LaGasa |
19 |
| J. Jeffrey Mullahey |
19 |
| Paula Klasmer |
19 |
| Cheryl McCormick |
19 |
| Peter Wirtz |
19 |
| Florida Fish and Wildlife Conservation Commission Archive |
19 |
| Jess Van Dyke |
19 |
| Michelle Grabowski |
19 |
| Mark Atwater |
19 |
| Mike Pingleton |
19 |
| Bradley Higbee |
19 |
| University of Idaho Archive |
19 |
| Stephen M. Garnsey |
19 |
| Robert M. McPherson |
19 |
| Allan Bullard |
19 |
| Vladimir Petko |
18 |
| Charles Turner |
18 |
| K. George Beck |
18 |
| Mississippi State University Archive |
18 |
| D.D. Cadahía |
18 |
| Phillip Roberts |
18 |
| Christopher Pierce |
18 |
| Virginia Tech Learning Resources Center |
18 |
| Daniel H. Brown |
17 |
| Samual Wright |
17 |
| Bob Nowierski |
17 |
| Zhihong Pan |
17 |
| Robert Wick |
17 |
| Terry English |
17 |
| James W. Byler |
17 |
| Beverly Turner |
17 |
| P.F. Byrne |
17 |
| John Ruberson |
17 |
| F.W. Howard |
17 |
| Boris Hrasovec |
17 |
| H.R. Duke |
17 |
| Dennis Haugen |
16 |
| Paul Bertrand |
16 |
| Richard Sprenkel |
16 |
| J.H. Hofmeyr |
16 |
| James W. Amrine Jr. |
16 |
| Peter Bedker |
16 |
| U. Mazzucchi |
16 |
| Ken Masten |
16 |
| Jane Taylor |
15 |
| Texas Forest Service Archive |
15 |
| Sandy Kegley |
15 |
| H.C. Evans |
15 |
| W. Robert Maple |
15 |
| Jack Dykinga |
15 |
| Ken A. Langeland |
15 |
| Agriculture and Agri-Food Canada Archive |
15 |
| Juan Manuel Alvarez |
15 |
| Tom Coleman |
15 |
| Dr. Reuven Jacobsohn |
15 |
| S.K. McDonald |
14 |
| Michael Rasy |
14 |
| William Fountain |
14 |
| Bernard J. Raimo |
14 |
| Mic Julien |
14 |
| Lawrence Morris |
14 |
| Eric Engbretson |
14 |
| Patrick Breen |
14 |
| Rachel Woodfield |
14 |
| Steve M. Brown |
14 |
| Mark McGregor |
14 |
| Jean Burns |
14 |
| Michael McClure |
14 |
| Eric Erbe |
14 |
| Robert Benjamin |
13 |
| Natalia Kirichenko |
13 |
| Frantisek Soukup |
13 |
| Norbert J. Cordeiro |
13 |
| Willey Durden |
13 |
| Agriculture Canada, Ottawa Archive |
13 |
| European and Mediterranean Plant Protection Organization Archive |
13 |
| Britt Slattery |
13 |
| Leonard Newell |
13 |
| William Lambert |
13 |
| Karen Brown |
13 |
| Gary Bernon |
13 |
| USDA Forest Service - Pineville Archive |
13 |
| David Adams |
13 |
| Scott Robinson |
13 |
| Ignacio Baez |
13 |
| Michael Barron |
13 |
| David R. Lance |
13 |
| S. K. Mohan |
13 |
| Alex Mangini |
12 |
| Will Hudson |
12 |
| Virginia Tech Plant Pathology Archive |
12 |
| Gillian Allard |
12 |
| Mary Ann Fajvan |
12 |
| Jijing Song and Juan Shi |
12 |
| Clinton Shock |
12 |
| Victor Ryabincov |
12 |
| Helena Giannini |
12 |
| Agroscope FAL Reckenholz Archive |
12 |
| Carol LaFayette |
12 |
| Alan Mills |
12 |
| L.D. Dwinell |
12 |
| Paul E. Hennon |
12 |
| J.M. Bové |
12 |
| Thomas Jung |
12 |
| Paolo Mazzei |
12 |
| S.A. Andrews |
11 |
| Erik Stromberg |
11 |
| Tamla Blunt |
11 |
| Dwight K. Lauer |
11 |
| L. Giunchedi |
11 |
| Hector Mialma |
11 |
| Doug Stone |
11 |
| Canadian Food Inspection Agency Archive |
11 |
| Andrew Derksen |
11 |
| Robert Lambe |
11 |
| Donald M. Grosman |
11 |
| W.H. Bennett |
11 |
| Kristina Simms |
11 |
| David M. Moehring |
11 |
| Robert F. Wittwer |
11 |
| Katherine Parys |
11 |
| John M. Staley |
11 |
| Washington State University Archive |
11 |
| Bob Richard |
11 |
| Randall Blackburn |
11 |
| Dennis Navea |
11 |
| Milos Knizek |
10 |
| Stan Diffie |
10 |
| Department of Primary Industries and Water, Tasmania Archive |
10 |
| Southern Forest Insect Work Conference Archive |
10 |
| Neal Spencer |
10 |
| Susan Pierce |
10 |
| Steve Passoa |
10 |
| Dean Morewood |
10 |
| Rebecca A. Melanson |
10 |
| Alison Fox |
10 |
| Devon Pfeiffer |
10 |
| California Department of Food and Agriculture Archive |
10 |
| Roger Lopez-Chaves |
10 |
| Alex Pauvolid-Corrêa |
10 |
| Wayne N. Dixon |
10 |
| Ruben Durán |
10 |
| Paul Butts |
10 |
| Mike Ostry |
10 |
| Kevin Enge |
10 |
| Boris Castro |
10 |
| Skip Snow |
10 |
| Charles Hoysa |
10 |
| Edward Czerwinski |
10 |
| USDA Forest Service Archive |
10 |
| Duane Raver |
9 |
| Central Science Laboratory Archive |
9 |
| North Carolina State University Archive |
9 |
| Ayanava Majumdar |
9 |
| Marsha Ward |
9 |
| Andrew Koeser |
9 |
| Clive Shirley |
9 |
| A. Eppler |
9 |
| T. Azeri |
9 |
| John J. Mosesso |
9 |
| James W. Smith |
9 |
| Kerrie L. Kyde |
9 |
| Bob Rabaglia |
9 |
| Jeffrey Wilson |
9 |
| Andrew Petrie |
9 |
| Alec McClay |
9 |
| Timothy Schubert |
9 |
| Ann Murray |
9 |
| Vince Belleci |
9 |
| Jacques Regad |
9 |
| J.K. Brown |
9 |
| J.A. Davidson |
9 |
| Michael Bohne |
9 |
| Sthephen A. Lewis |
9 |
| M. Clerjeau |
9 |
| Michael Mengak |
9 |
| Howard F. Schwartz & Jillian M. Lang |
9 |
| Roland J. Stipes |
9 |
| Clair Merrit |
9 |
| Diego Olmo |
8 |
| W.G. Ziller |
8 |
| Nancy Gregory |
8 |
| J.P. Michaud |
8 |
| Jenn Grieser |
8 |
| Barry Freeman |
8 |
| Tim Murphy |
8 |
| Connie Strunk |
8 |
| Steve Manning |
8 |
| Myron Adams |
8 |
| Stacey Leicht |
8 |
| Julie Kikkert |
8 |
| J.J. Tuset |
8 |
| L. Navarro |
8 |
| Tom Gray |
8 |
| G.W. Buchleiter |
8 |
| UK Forestry Commission Archive |
8 |
| HortNET Archive |
8 |
| USDA Forest Service - Alaska Archive |
8 |
| Peter A. Rush |
8 |
| Troy Kimoto |
8 |
| Fernando Gallardo |
8 |
| James D. Ellis |
8 |
| Ian Kimber |
8 |
| Robert Richardson |
8 |
| Jeff Portwood |
8 |
| I. Blakey Lockman |
8 |
| Ollie Knott |
8 |
| Brian Sullivan |
8 |
| D.R. Miller |
8 |
| James R. Meeker |
8 |
| USDA ARS Archive |
8 |
| USDA APHIS PPQ Archive |
8 |
| N.S. Luepschen |
8 |
| Paul Weston |
8 |
| Linda Lee |
8 |
| Stephanie Sopow |
8 |
| U.S. Fish and Wildlife Service Archive |
8 |
| SCRI-Dundee Archive |
8 |
| Ida Paul |
7 |
| J. Brasington |
7 |
| Mariano Muñiz |
7 |
| Jim Skiera |
7 |
| Rudolf H. Scheffrahn |
7 |
| Nez Perce BioControl Center Archive |
7 |
| Ellen Lake |
7 |
| Jason Gatch |
7 |
| Georgette Smith |
7 |
| Juan Shi |
7 |
| Gary Kling |
7 |
| G.M. Buxton |
7 |
| Ethel Dutky |
7 |
| Janet S. McCulloch |
7 |
| Byron Rhodes |
7 |
| Jeremy Lee |
7 |
| David Nicholls |
7 |
| Hania Berdys |
7 |
| Amy Benson |
7 |
| Robert L. Johnson |
7 |
| Charles Drake |
7 |
| David Hall |
7 |
| Donald F. Rogers |
7 |
| John Kraus |
7 |
| Mark Czarnota |
7 |
| Bill Gallup |
7 |
| Milton Rush |
7 |
| Carlos Amadeu Leite de Oliveira |
7 |
| Alan Flynn |
7 |
| David Nance |
7 |
| Connie Gray |
7 |
| Billy Craft |
7 |
| John Connett |
7 |
| Lee Karney |
7 |
| Kevin Dodds |
7 |
| Anne W. Gideon |
7 |
| Victor Cordova |
7 |
| Bob Oakes |
7 |
| Wayne Williamson |
7 |
| Samantha Anderson |
7 |
| Fred Nation |
7 |
| Raghavan Charudattan |
6 |
| Brad Haire |
6 |
| Michigan Department of Agriculture |
6 |
| The Nature Conservancy Archive |
6 |
| Amy Diercks |
6 |
| K.A. Barbarick |
6 |
| Michael Kangas |
6 |
| Lester E. Dickens |
6 |
| Holly Thornton |
6 |
| Christina DiFonzo |
6 |
| K.B. Jamieson |
6 |
| Luboš R. Kolouch |
6 |
| Douglas Barbe |
6 |
| Borys M. Tkacz |
6 |
| Jean L. Williams-Woodward |
6 |
| Thomas Elias |
6 |
| Forest Research |
6 |
| Tom Eubank |
6 |
| International Potato Center Archive |
6 |
| Carol J Nichols |
6 |
| Stephen Lew |
6 |
| Billy Higginbotham |
6 |
| E.G. Kuhlman |
6 |
| David G. Robinson |
6 |
| Scott Famous |
6 |
| Tom Creswell |
6 |
| J.D. Roberts |
6 |
| Kurt Stueber |
6 |
| Tim Varnedore |
6 |
| Gary Buckingham |
6 |
| Jim Story |
6 |
| Billy R. Wiseman |
6 |
| R.C. Morris |
6 |
| Kevin Taylor |
6 |
| Jon Sweeney |
6 |
| H.H. Triantaphyllou |
6 |
| Sanford D. Porter |
6 |
| Greg Leach |
6 |
| Les Tanner |
6 |
| Robert A. Haack |
6 |
| Patrick H. Brose |
6 |
| Don Herbison-Evans |
6 |
| Jim Tresouthick |
6 |
| Temel Gokturk |
6 |
| Bodie Pennisi |
6 |
| Robert D. Richard |
6 |
| Montana State University Archive |
6 |
| Rich Sabulsky |
6 |
| Ian F. Smith |
6 |
| John N. Gibbs |
6 |
| Takumasa Kondo |
6 |
| Stanley Culpepper |
6 |
| Robert F. Bassett |
6 |
| Peter L. Lorio, Jr. |
6 |
| James P. Cuda |
6 |
| OSU Extension Slide Set Archives |
6 |
| Lilia De Guzman |
6 |
| Jeffrey J. Jackson |
6 |
| Peter Stephen |
6 |
| J.C. Wells |
6 |
| O.P. Sharma |
6 |
| Tom Laurent |
6 |
| Forrest L. Oliveria |
6 |
| Bob Lepak |
6 |
| Kelle Sullivan |
6 |
| Carol Hayes |
6 |
| Alan Grant |
6 |
| D. W. French |
6 |
| Kristen Riolo |
6 |
| Art Wagner |
5 |
| Giuseppina Pellizzari |
5 |
| Virgil Davis |
5 |
| Toby Petrice |
5 |
| Jessica Price |
5 |
| Ted D. Center |
5 |
| Luana Vargas |
5 |
| Nadia Da Ros |
5 |
| Jeffrey Eickwort |
5 |
| Scott Horn |
5 |
| State Plant Pathology Institute of Denmark Archive |
5 |
| Scott Carlson |
5 |
| Kent Loeffler |
5 |
| Heather Faubert |
5 |
| Dewey Lee |
5 |
| Susan Turner |
5 |
| Diane Hildebrand |
5 |
| Michael Montgomery |
5 |
| James A. Copony |
5 |
| James McGraw |
5 |
| J.W. Walters |
5 |
| M.G. Klein |
5 |
| Laura Rogers |
5 |
| T.W. Mew |
5 |
| Claudia Dolinski |
5 |
| Canadian Forest Service Archive |
5 |
| Nava Tabak |
5 |
| Sam Markell |
5 |
| James Smith |
5 |
| Susan Wineriter |
5 |
| Chip Bates |
5 |
| A.A. Newton |
5 |
| Petr Srutka |
5 |
| Mandy Tu |
5 |
| Albert Kais |
5 |
| Bob McMurry |
5 |
| USDA Forest Service - Ashville Archive |
5 |
| T.W. Bretz |
5 |
| Nancy Hinkle |
5 |
| Gary M. Stolz |
5 |
| Bill Godfrey |
5 |
| R.F. Scharpf |
5 |
| Philip Rusted |
5 |
| American Phytopathological Society Archive |
5 |
| Dr. Augustin |
5 |
| G. Marchoux |
5 |
| Mary Foley Benson |
5 |
| Hugo A. Cordo |
5 |
| Lawrence Abrahamson |
5 |
| John R. Seiler |
5 |
| Angela Walther |
5 |
| Biologische Bundesanstalt für Land- und Forstwirtschaft Archive |
5 |
| Laurie Reid |
5 |
| Dennis Teague |
5 |
| A.T. Jones |
5 |
| Donna R. Ellis |
5 |
| G. Morvan |
5 |
| Laurence I. Miller |
5 |
| Robert Hedburg |
5 |
| Philip McDonald |
5 |
| Howard F. Schwartz & Mark S. McMillan |
5 |
| Jean-François Abgrall |
5 |
| P.G. Psallidas |
5 |
| Walter Stahel |
5 |
| A. van Frankenhuijzen |
5 |
| Clint Hardy |
5 |
| Rosemarie De Clerck-Floate |
5 |
| Richard Smith |
5 |
| Bart Wursten |
5 |
| Christine A. Bennett |
5 |
| David R. McKay |
5 |
| Ben Jackson |
5 |
| B. Merle Shepard |
5 |
| Dr. Lynn Clark and Anna Gardner |
5 |
| Lynn Jones and Nathan Havill |
5 |
| Ernest C. Bernard |
5 |
| Doug Landis |
5 |
| Marianne Prue |
5 |
| April Noble |
4 |
| Jerry Asher |
4 |
| University of Alaska - Anchorage Archive |
4 |
| Wilson Faircloth |
4 |
| Volcani Center Archive |
4 |
| University of New South Wales Archive |
4 |
| Jack Ranney |
4 |
| Houping Liu |
4 |
| Alexander Purcell |
4 |
| Jack T. Reed |
4 |
| Cathy Stewart |
4 |
| Craig Sheppard |
4 |
| Bonnie Harper-Lore |
4 |
| Wayne A. Sinclair |
4 |
| J. Johnson |
4 |
| Yun Wu |
4 |
| R.S. Peterson |
4 |
| Carole Cheah |
4 |
| Jeff Sexton |
4 |
| Bayer Pflanzenschutz Archive |
4 |
| Pflanzenschutzamt Weil-am-Rhein Archives Archive |
4 |
| C.E. Seliskar |
4 |
| Kira Zhaurova |
4 |
| Anne Miller |
4 |
| Malcolm Storey |
4 |
| UConn Plant Database www.hort.uconn.edu/plants |
4 |
| Diane Reaver |
4 |
| USDA NRCS Archive |
4 |
| John W. Everest |
4 |
| Louisiana State University Archive |
4 |
| James Hoffman |
4 |
| S.R. Andrews |
4 |
| Larry Line |
4 |
| Biolog. Bundesans., Inst. f. Pflanzenschutz im Weinbau Archive |
4 |
| Christopher Asaro |
4 |
| Dr. Backhaus |
4 |
| S.L. Goldson |
4 |
| Shimat Joseph |
4 |
| Jian-qing Ding |
4 |
| Wood Johnson |
4 |
| Auburn University Archive |
4 |
| Brian Perchtel |
4 |
| Richard W. Hansen |
4 |
| Ashley Lamb |
4 |
| Robert W. Matthews |
4 |
| John R. Tolliver |
4 |
| David G. Nielsen |
4 |
| Peter Room |
4 |
| Gerhard Elsner |
4 |
| Robert J. Richardson |
4 |
| SRPV, Nice Archive |
4 |
| Tom Miller |
4 |
| Ohio State Univ Ohio Ag. research & Development Center |
4 |
| M. Goto |
4 |
| Virginia Tech Weed Identification Guide Archive |
4 |
| David Conklin |
4 |
| Csaba Szaboky |
4 |
| Rene Marcinhes |
4 |
| Shep Zedaker |
4 |
| Hariet Hinz & Ester Gerber |
4 |
| C.A. de Klerk |
4 |
| Min B. Rayamajhi |
4 |
| Forestry Canada, Ottawa Archive |
4 |
| A. Vigouroux |
4 |
| James O. Howell |
4 |
| Craig Ramsey |
4 |
| Joel E. Miles |
4 |
| Clyde Dowler |
4 |
| J. Guyot |
4 |
| M.A. van den Berg |
4 |
| Heinz USA Archive |
4 |
| International Rice Research Institute Archive |
4 |
| ENSA-Montpellier Archive |
4 |
| INRA-Bordeaux Archive |
4 |
| Richard C. Edwards |
4 |
| Svetlana Y. Gouli |
4 |
| Stephen W. Bullington
|
4 |
| Daniel J. Kepich |
4 |
| Donald Duerr |
4 |
| A.R. Chase |
4 |
| Paul E. Skelley |
4 |
| Paul H. Peacher |
4 |
| David W. Johnson |
4 |
| Bernard H. Ebel |
4 |
| Bruce Smith |
4 |
| L. M. Marsh |
4 |
| Peter Harris |
4 |
| Tim O'Neill |
4 |
| François-Xavier Saintonge |
4 |
| Jean-Paul Grandjean |
4 |
| Jack C. Nord |
4 |
| Graham Trim |
4 |
| Nancy Gillette |
4 |
| John Pronos |
4 |
| Gerald D. Carr |
4 |
| Michelle Cram |
4 |
| G.W. Wallis |
4 |
| Tom Hall |
4 |
| R.W. Samson |
4 |
| R. Grimm |
4 |
| R. Flores |
3 |
| INRA-Angers Archive |
3 |
| Ministry of Agricuilture and Rural Affairs Archive |
3 |
| Doug Wilson |
3 |
| E.A. Milus |
3 |
| J. Dunez |
3 |
| A.C. Magyarosy |
3 |
| G.D. Franc |
3 |
| University of Georgia Entomology Archive |
3 |
| Laura Merrill |
3 |
| Richard Spriggs |
3 |
| James Braselton |
3 |
| Caleb L. Morris |
3 |
| Dell O. Clark |
3 |
| Brian Geils |
3 |
| D.G. Passmore |
3 |
| David Mooter |
3 |
| Andrea Van Loan |
3 |
| J. Pedro Mansilla Vazquez |
3 |
| Università di Bologna Archive |
3 |
| Nico Franz |
3 |
| Lisa Anness |
3 |
| Martin Moses |
3 |
| Paul Thomas |
3 |
| Keith Delaplane |
3 |
| Paul Trible |
3 |
| F. Dosba |
3 |
| J.C. Hopkins |
3 |
| J. O'Bannon |
3 |
| Shawn Good |
3 |
| Maresha Seusy |
3 |
| Nathan Howard |
3 |
| K.V. Raman |
3 |
| M. Koizumi |
3 |
| Reid Frederick |
3 |
| University of Illinois at Urbana-Champaign Archive |
3 |
| Texas Agricultural Extension Service Archive |
3 |
| Tarique Sani |
3 |
| Jose Hernandez |
3 |
| Brantlee Spakes Richter |
3 |
| Gvozdev Antony |
3 |
| Claude-Bernard Malphettes |
3 |
| Debbie Miller |
3 |
| David Seerveld |
3 |
| Brian Prechtel |
3 |
| IPM Thailand Archive |
3 |
| Shiva Shankar |
3 |
| Lizbeth Gonzalez |
3 |
| Kenneth Calcote |
3 |
| Leslie Chong |
3 |
| Chris Bergh |
3 |
| J. Tomminen |
3 |
| J.K. Pataky |
3 |
| The Natural History Museum, London Archive |
3 |
| Nick Dimmock |
3 |
| Rick West |
3 |
| Louisiana State University AgCenter Archive |
3 |
| Karen Ackles |
3 |
| Jim Space |
3 |
| I.G. (Hardi) Oberholzer |
3 |
| Brett Billings |
3 |
| Brian Sugarman |
3 |
| Elizabeth Carlson |
3 |
| USDI BLM Archive |
3 |
| B.J. Goates |
3 |
| Phil Crawl |
3 |
| Brian Cabrera |
3 |
| Diane Perkins |
3 |
| Wayne Adkins |
3 |
| Mirza Dautbasic |
3 |
| Cornell University Archive |
3 |
| INRA-Versailles Archive |
3 |
| William Shuster |
3 |
| C.A. Frazier |
3 |
| Stephen D. Hight |
3 |
| Daniel Wojcik |
3 |
| John Stommel |
3 |
| Tony Caesar |
3 |
| Vicky Quick |
3 |
| Nanna Borcherdt |
3 |
| Bob Davidson |
3 |
| Barry Cooke |
3 |
| P.J. Chapman |
3 |
| Pflanzenschutzamt, Hanover Archive |
3 |
| Patrick Loes |
3 |
| Ferenc Viranyi |
3 |
| Mark Schwarzlaender |
3 |
| F.C. Schweissing |
3 |
| Anton Baudoin |
3 |
| Alex. H. Purcell |
3 |
| CABI Biosciences Archive |
3 |
| A. Burns Weathersby |
3 |
| Suzanne Foster |
3 |
| David McClenaghan |
3 |
| Melissa Miller |
3 |
| Bruce Fritz |
3 |
| George Kelley |
3 |
| S.P. van Vuuren |
3 |
| Stephen Davis |
3 |
| Martin MAcKenzie |
3 |
| R.D. Milholland |
3 |
| Donnie Edwards |
3 |
| Christer Olsson |
3 |
| Eric Rebek |
3 |
| R. Stace-Smith |
3 |
| Jacob Vance |
3 |
| Sally Tucker |
3 |
| Jim Plaskowitz |
3 |
| Roger S Key |
3 |
| Antoine Guyonnet |
3 |
| Dave Holland |
3 |
| Pflanzenschutzamt Saarbrücken, Husken-Thimm Archive |
3 |
| S.D. Lyda |
3 |
| Institut Technique de la Betterave Archive |
3 |
| Università di Napoli Archive |
3 |
| P.M.J. Ramakers |
3 |
| Amy Fulcher |
3 |
| H. Gross |
3 |
| Debbie Waters |
3 |
| Donna Richardson |
3 |
| Michael T. Smith |
3 |
| David Karp |
3 |
| Gordon Rodda |
3 |
| Andris Eglitis |
3 |
| Art Wagner |
3 |
| Barry Fitzgerald |
3 |
| J. Louvet |
3 |
| Victor Ramey |
3 |
| Johnny Crawford |
3 |
| André Bolay |
3 |
| G. Perrotta |
3 |
| New York State Agricultural Experiment Station Archive |
3 |
| Mohammed El Damir |
3 |
| tia smith |
3 |
| William H. Hoffard |
3 |
| C.L. Hodges |
3 |
| Lisa Tewksbury |
3 |
| Alan Isler |
3 |
| Daniel K. MacKinnon |
3 |
| Tommaso Branzanti |
3 |
| Julio Medal |
3 |
| Harry Duncan |
2 |
| New York Department of Environmental Conservation Archive |
2 |
| Mark McNeill |
2 |
| David Voegtlin |
2 |
| John D. Kegg |
2 |
| Carol DiSalvo |
2 |
| Michelle Peake |
2 |
| Lakshmi Sridharan |
2 |
| Piero Cravedi |
2 |
| T. Kobayashi |
2 |
| Alison Mackey |
2 |
| Iman Heijboer |
2 |
| H.D. Catling |
2 |
| H.L. Keil |
2 |
| G. Morvan |
2 |
| Flora MacColl |
2 |
| Constance Mehmel |
2 |
| Landesanstalt für Pflanzenbau und Pflanzenschutz Archive |
2 |
| Charles Johnson |
2 |
| Jack Clark |
2 |
| P. Barkley |
2 |
| Steve Hatch |
2 |
| William Tang |
2 |
| Cheryl E. Frank |
2 |
| Rusty Haskell |
2 |
| Marylin Tomkins |
2 |
| Nicolina Zambone |
2 |
| Doug Allen |
2 |
| R. Werner |
2 |
| Frank Hawksworth |
2 |
| John A. Williams |
2 |
| Indiana Department of Natural Resources Archive |
2 |
| Michael D. Connor |
2 |
| George Boyhan |
2 |
| Center for Great Lakes and Aquatic Sciences Archive |
2 |
| Susan Trammell |
2 |
| Sara Rosenthal |
2 |
| Frank A. Hale |
2 |
| H. Powers |
2 |
| Steve Clarke |
2 |
| D.G. Walkey |
2 |
| P.M.J. Ramakers |
2 |
| C. Trouvé |
2 |
| Wilfredo Robles |
2 |
| Richard Chan |
2 |
| Blake Layton |
2 |
| Brian Lenihan |
2 |
| Shirley Kerr |
2 |
| H.K. Kaya |
2 |
| Charles D. Pless |
2 |
| Rita Parkins |
2 |
| William D. Duffie Jr. |
2 |
| NOAA Archives |
2 |
| Mike Cline |
2 |
| Ralph Cunningham |
2 |
| Taran Rampersad |
2 |
| Alex Popovkin |
2 |
| Mark McClure |
2 |
| L. Kunze |
2 |
| SRPV, Poitiers Archive |
2 |
| Jody Shimp |
2 |
| E.R. French |
2 |
| Robert Nichols |
2 |
| David Beckman |
2 |
| G. Reboux |
2 |
| Francis Maugard |
2 |
| Jennifer Berry |
2 |
| Bruce Sorrie |
2 |
| D. Schotzko |
2 |
| Tim Haye |
2 |
| Dan Pusey |
2 |
| Rob Flynn |
2 |
| Sarah Braun |
2 |
| Kerry Britton |
2 |
| Gregg DeNitto |
2 |
| Mao Chen |
2 |
| Stefan Neser |
2 |
| Dave Overholser |
2 |
| Beverly Sparks |
2 |
| Olivier Baubet |
2 |
| C.G. Panagopoulos |
2 |
| Hideo Ishii |
2 |
| Yves Bancillon |
2 |
| Gena Todia |
2 |
| P.W. Talboys |
2 |
| R.E. Stevens |
2 |
| Biologische Bundesanstalt, Institut für Pflanzenschutz im Obstbau Archive |
2 |
| International Rice Research Institute, Los Banos Archive |
2 |
| Phillip Needham |
2 |
| Bruce Bosley |
2 |
| Debbie Greene |
2 |
| Janice Lynch |
2 |
| Wendy Patrick |
2 |
| Machelle Clements |
2 |
| Bryan Niece |
2 |
| Kathleen Bjoran |
2 |
| George Markham |
2 |
| Biological Control: A Guide of Natural Enemies of North America Web Site |
2 |
| Bobby Pinto |
2 |
| Alan Matthews |
2 |
| Michelle Samuel-Foo |
2 |
| Darroll D. Skilling |
2 |
| Carl W. Fatzinger |
2 |
| Nancy Campbell |
2 |
| Bill Klein |
2 |
| Jim Carpenter |
2 |
| D.G. McNamara |
2 |
| Rosa Kugler |
2 |
| Linnea Gillman |
2 |
| Ethan Angell |
2 |
| Osservatorio per le Malattie delle Piante Archive |
2 |
| Carlos Gomez |
2 |
| Greg Mazur |
2 |
| Jason D. Stanley |
2 |
| Erick Ahlbrandt |
2 |
| Michael Dean |
2 |
| Juliana M. Harding |
2 |
| David W. Ragsdale |
2 |
| P. Jones |
2 |
| H.J. Willetts |
2 |
| G. Siscaro and G. Mazzeo |
2 |
| W.R. Allen |
2 |
| Ron Weeks |
2 |
| Anatomy Department Archive |
2 |
| Nancy Coile |
2 |
| C. Paetel |
2 |
| CSIRO Archive |
2 |
| G. Caubel |
2 |
| Theirry Vrain |
2 |
| David Leatherman |
2 |
| Kevin Mathias |
2 |
| Roger Anderson |
2 |
| Howard Russell |
2 |
| Eduardo Pereira |
2 |
| Norm Johnson |
2 |
| Lamar Merck |
2 |
| Ed Cordell |
2 |
| Lisa Castlebury |
2 |
| Cathy Cochran |
2 |
| Stephen Patton |
2 |
| Christie Cantrell |
2 |
| Perry Hampson |
2 |
| Hansell F. Cross |
2 |
| Ames Herbert |
2 |
| François Lieutier |
2 |
| D. Ritchie |
2 |
| E. Mani |
2 |
| Dana Rowe |
2 |
| Karen Loeffelman |
2 |
| Horticulture Research International, East Malling Archive |
2 |
| SRPV, Ile de France Archive |
2 |
| SRPV, Bourgogne Archive |
2 |
| Bill Meecham |
2 |
| Stanton Gill |
2 |
| C.E. Taylor and W.M. Robertson |
2 |
| E.I. Schutt |
2 |
| R.G. Steadman |
2 |
| Margaret Pooler |
2 |
| Michael Jordan |
2 |
| Dave Schultz |
2 |
| George Hudler |
2 |
| Wayne Berisford |
2 |
| Max Ollieu |
2 |
| Ralph Williams |
2 |
| Edward P. Merkel |
2 |
| Jen Kolb |
2 |
| D. Bray |
2 |
| Kristine Travis |
2 |
| Jae-Cheon Sohn |
2 |
| Bruce Neill |
2 |
| Warren L. Wagner |
2 |
| Dave Wilson |
2 |
| Leslie Seiger |
2 |
| Didier Vincenot |
2 |
| O. Heikinheimo |
2 |
| Dr W. Jelkman |
2 |
| Allen E. Knutson |
2 |
| Mark Sengelmann |
2 |
| Jason Hodge |
2 |
| Nora Arias Loftis |
2 |
| Heidi Snell |
2 |
| A.L. Taylor |
2 |
| J.L. Danet |
2 |
| H. Audemard |
2 |
| H. Sawada |
2 |
| Warner Park Nature Center Archive |
2 |
| L.S. Gill |
2 |
| Dan Rahn |
2 |
| Susan Kirk |
2 |
| Michasia Harris |
2 |
| Steve Webb |
2 |
| Mark Gilkey |
2 |
| Gary Baxter |
2 |
| Chris Lockhart |
2 |
| Ross Mayhew |
2 |
| The William and Lynda Steere Herbarium of The New York Botanical Garden Archive |
2 |
| Carole Ritchie |
2 |
| Victoria Nuzzo |
2 |
| Martin P. Hill |
2 |
| Alfred Cofrancesco |
2 |
| Joe Berry |
2 |
| Ronald Laubenstein |
2 |
| Aref Abdul-Baki |
2 |
| R.B. Malek |
2 |
| Reyes Garcia III |
2 |
| James Preacher |
2 |
| Josh Hillman |
2 |
| K. Kiritani |
2 |
| E.F. Wicker |
2 |
| G.T. O'Loughlin |
2 |
| V.R. Wallen |
2 |
| Michael Seymour |
2 |
| David Teem |
1 |
| Thomas Beard |
1 |
| Dayle D. Bennett |
1 |
| Ministry of Agriculture and Food Production Archive |
1 |
| SRPV, Limoges Archive |
1 |
| Gary A. Payne |
1 |
| Carmen Rodriguez |
1 |
| Carl Jorgensen |
1 |
| A. Mani |
1 |
| J. Begtrup |
1 |
| M. Nuorteva |
1 |
| M.T. Cousin |
1 |
| D. Boubals |
1 |
| A.R. Pittaway |
1 |
| Robert Hedlund |
1 |
| Suzan McIntyre |
1 |
| Gordon Maupin |
1 |
| Emily Earp |
1 |
| Jim Midcap |
1 |
| R.A. Hammon |
1 |
| Rusty Rhea |
1 |
| W.H. Lange |
1 |
| Dennis J. Souto |
1 |
| Mitchell Roof |
1 |
| Ralph D. Bagwell |
1 |
| James Kimmey |
1 |
| John Shaw Boyce |
1 |
| Robert A. Sommers |
1 |
| L.S. Pickard |
1 |
| Gary L. DeBarr |
1 |
| Doug Jensen |
1 |
| Tim McCabe |
1 |
| Perry Rech |
1 |
| W.H. Prestele |
1 |
| Mary Duke |
1 |
| Teresa Mardis |
1 |
| Rick Burningham |
1 |
| James F. Lubner |
1 |
| Kelsey Paras |
1 |
| Camilla B. Yandoc |
1 |
| Rudi Scheffrahn |
1 |
| Faith Oi |
1 |
| Lowell Nielsen |
1 |
| Faith Campbell |
1 |
| Carina J. Cilliers |
1 |
| Ray Simons |
1 |
| John Hammond |
1 |
| Landesanst. f. Pflanzenbau und Pflanzenschutz, Mainz Archive |
1 |
| Joseph Morse |
1 |
| Jane Griffin Dozier |
1 |
| Dallas Hazelton |
1 |
| Beate Czogalla |
1 |
| Scott Chapal |
1 |
| Bradley Kriekhaus |
1 |
| N. Wortson Summer |
1 |
| Elizabeth Goulet |
1 |
| Tom Hlavaty |
1 |
| Allen Cohen |
1 |
| Beth Grobbelaar |
1 |
| David Williams |
1 |
| James Schepers |
1 |
| Ken Hackman |
1 |
| Hank McNeal |
1 |
| K. Groope |
1 |
| W.C. Guy |
1 |
| Leonard L. Lake |
1 |
| Felix Francis |
1 |
| Erwin and Peggy Bauer |
1 |
| Evelyn Healy |
1 |
| G. Oldfield |
1 |
| A.J. Ullstrup |
1 |
| John Snitzer |
1 |
| Pat Bollich |
1 |
| Eric Carr |
1 |
| Jerry Gibson |
1 |
| Brett Hampton |
1 |
| Ralph Williams |
1 |
| University of California Archive |
1 |
| Caulerpa Action Team Archive |
1 |
| Bob Johnston |
1 |
| Sharon Omahen |
1 |
| Joe Chamberlin |
1 |
| K. Venn |
1 |
| W.E. Sackston |
1 |
| Plant Pathology Laboratory, Harpenden (GB) Archive |
1 |
| Terry Curtis |
1 |
| Poul Beckmann |
1 |
| James D. Dutcher |
1 |
| Ken L S Harley |
1 |
| Fudd Graham |
1 |
| Jad Haldman |
1 |
| Steve Cade |
1 |
| Jennifer E. Dacey |
1 |
| Harry Pratt |
1 |
| Allen C. Steere |
1 |
| Geoffrey Mason |
1 |
| John Yablonsky |
1 |
| Alexander Chizhov |
1 |
| R. Scherbaum |
1 |
| Robert N. Smith |
1 |
| Ron Jones |
1 |
| Roger Ward |
1 |
| Paul M. Choate |
1 |
| Bill Murray |
1 |
| Tom Nichols |
1 |
| M. Scott |
1 |
| Lee Knepp |
1 |
| Gary R. Zahm |
1 |
| Paul Vincelli |
1 |
| Meg Green |
1 |
| Martin McKenzie |
1 |
| Christian Michel |
1 |
| Steve Pfiffer |
1 |
| Rebecca Norris |
1 |
| Rae Chambers |
1 |
| J. Kim Kaplan |
1 |
| Martin Heffer |
1 |
| Dong-Hwan Choe |
1 |
| Lee Emery |
1 |
| Arpita Roy |
1 |
| Fred Minderman |
1 |
| Mount Albert Research Centre Archive |
1 |
| GRISP, Antibes Archive |
1 |
| Donald C. Steinkraus |
1 |
| Russ Hogan |
1 |
| Guam Division of Forestry and Soil Resources Archive |
1 |
| E.H. Glass |
1 |
| G.D. Amman |
1 |
| I.M. Smith |
1 |
| Gifford Pinchot |
1 |
| D. Caffier |
1 |
| R. Lafon |
1 |
| T.H. Filer Jr. |
1 |
| Jean-François Garsault |
1 |
| Curtis Swift |
1 |
| Van Waters and Rogers |
1 |
| Keith Bramwell |
1 |
| USDA-ARS Archive |
1 |
| John Stanley |
1 |
| Jack Kelly Clark |
1 |
| Michael Moerkerk |
1 |
| Fred Hrusa |
1 |
| James Young |
1 |
| C.W. Herbert |
1 |
| Lorraine Beaman |
1 |
| Gene Cross |
1 |
| Jeffrey Harris |
1 |
| H. Barth Dessau |
1 |
| LayLa Burgess |
1 |
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1 |
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1 |
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1 |
| Tertia Grové |
1 |
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1 |
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1 |
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1 |
| Joseph Kanner |
1 |
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1 |
| I. Ponti and P. Cavanni |
1 |
| V. Rodney Coleman |
1 |
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1 |
| Robert Stewart |
1 |
| Herb Womack |
1 |
| Scott NeSmith |
1 |
| Richard Turcotte |
1 |
| Adam Downing |
1 |
| Ludovic Capo-chichi |
1 |
| Link Elmore |
1 |
| Faith Duncan |
1 |
| S. Schooler |
1 |
| Clifford Andrews |
1 |
| Christopher J. Saunders |
1 |
| Doug Buhler |
1 |
| James A. Saunders |
1 |
| Gabriella Zilahi-Balogh |
1 |
| Massimo Stroppa |
1 |
| Michigan Sea Grant Archive |
1 |
| Jacob Blimline |
1 |
| Wayne E. Clark |
1 |
| William T. Haller |
1 |
| G.R. Johnson |
1 |
| Jeff Littlefield |
1 |
| R. Burgos & Mariano Muñiz |
1 |
| R. Zachmann |
1 |
| E. Hellmers |
1 |
| F. Benci |
1 |
| Jean Pinon |
1 |
| Jeanine Soter |
1 |
| Kris Johnson |
1 |
| Roy Wood |
1 |
| Alan Guile |
1 |
| R.S. Hussey |
1 |
| Steve Brack |
1 |
| Rijksstation voor Plantenziekten Archive |
1 |
| Christian Widmann |
1 |
| Tony Smith |
1 |
| George Gate |
1 |
| Steve Horsley |
1 |
| Leo Janssen |
1 |
| Dr. Iren Siller and Dr. Gabor Turcsanyi |
1 |
| Alan Kimber |
1 |
| Jana Albers |
1 |
| Mark Robinson |
1 |
| Richard Shaw |
1 |
| Arthur L. Schipper |
1 |
| Dale Habeck |
1 |
| Michael J. Bader |
1 |
| Ivan Sutila |
1 |
| Barbara Barratt |
1 |
| William Livingston |
1 |
| Sebahat Ozman |
1 |
| John Kucharski |
1 |
| Rex Bartlett |
1 |
| Mike Bodle |
1 |
| Roger Hammer |
1 |
| Jeff Vanuga |
1 |
| Annette Olson |
1 |
| Tarah Kolb |
1 |
| Michigan Department of Natural Resources Archive |
1 |
| Donald J. Goheen |
1 |
| Milan Pernek |
1 |
| Bill Ree |
1 |
| Vitezslava Peskova |
1 |
| D.W. Dickson |
1 |
| Gary Cholwek |
1 |
| University of Florida Archive |
1 |
| Centre for Overseas Pest Research, London Archive |
1 |
| Richard Smith |
1 |
| H. Lecoq |
1 |
| J.D. Janse |
1 |
| J.H. O'Bannon |
1 |
| L. Parrish |
1 |
| L.M. Black |
1 |
| Bonnie Dalzell |
1 |
| Malcolm Furniss |
1 |
| William Napier |
1 |
| B.J. Jacobsen |
1 |
| Dale Brown |
1 |
| Garland N. Mason |
1 |
| Don Registor |
1 |
| USDA Forest Service - Arkansas Archive |
1 |
| James H. Jarratt |
1 |
| William K. Fitt |
1 |
| Amy Richard |
1 |
| William Grey |
1 |
| Gene Nieminen |
1 |
| Jill Wilson |
1 |
| Jamie Welsh |
1 |
| Joel Floyd |
1 |
| Joe Hennen |
1 |
| National Wetlands Research Center Archive |
1 |
| Ronald Stroessner |
1 |
| John Goolsby |
1 |
| Karen Williams |
1 |
| Paul Bloomer |
1 |
| M.H. Frost |
1 |
| John S. Heiss |
1 |
| Minister of Public Works and Government Services, Canada Archive |
1 |
| Wendell Snow |
1 |
| Mike Matheron |
1 |
| Aaron Hager |
1 |
| B.R. Coad |
1 |
| Kenneth H. Knauer |
1 |
| Suzanne Lyon |
1 |
| Sean McCann |
1 |
| Fred Fishel |
1 |
| M. Boyd Edwards |
1 |
| Joseph McCauley |
1 |
| Rich Mason |
1 |
| Houston Couch |
1 |
| James Etheridge |
1 |
| Roberta Zimmerman |
1 |
| G.A. Peterson |
1 |
| M.C. Shurtleff |
1 |
| F. Bertaux |
1 |
| J.L. Gaignard & J. Luisetti |
1 |
| L. Gardan |
1 |
| Dr. Weidemann |
1 |
| E. Levine |
1 |
| Dr. Shabbir Rizvi |
1 |
| Rothamsted Experimental Station Archive |
1 |
| Jim Walters |
1 |
| D.M. Benjamin |
1 |
| R. Bernhard |
1 |
| R. Cassini |
1 |
| Commonwealth Institute of Helminthology Archive |
1 |
| Department of Agriculture, Northern Ireland Archive |
1 |
| State Plant Quarantine Inspection Archive |
1 |
| INRA-Antibes Archive |
1 |
| Sally Leong |
1 |
| Chris Horne |
1 |
| Bob DeGross |
1 |
| David Jude |
1 |
| J. Scott Peterson |
1 |
| Bernard Fransen |
1 |
| Dean Gjerstad |
1 |
| Dagmar Hanold |
1 |
| Bob Frank |
1 |
| Murray S. Blum |
1 |
| John Godbee |
1 |
| Leslie Dietz |
1 |
| John P. Bailey |
1 |
| Robert C. Thatcher |
1 |
| Bill Antrobius |
1 |
| Fred Honing |
1 |
| H.F. L.E.Dickens |
1 |
| T.L. Forsberg |
1 |
| Tony Wolfe |
1 |
| Lenny Wells |
1 |
| James Rollins |
1 |
| Jim Kunstman |
1 |
| David Dickens |
1 |
| R.P. Singh |
1 |
| G. Mazzeo |
1 |
| David Eitzen |
1 |
| John McGuire |
1 |
| J.D. de Filippis |
1 |
| Mark S. Hoddle |
1 |
| Lloyd Loope |
1 |
| Philippe Legrand |
1 |
| Scott Stewart |
1 |
| Johnny Saichuk |
1 |
| Mark Crosby |
1 |
| Richard Jernigan |
1 |
| Nemapix Archive |
1 |
| Kenneth R. Barker |
1 |
| Dieter Heinicke |
1 |
| Jeff Pettis |
1 |
| John Nienaber |
1 |
| Robert Masters |
1 |
| Darrell Wesenberg |
1 |
| Sharlene E. Sing |
1 |
| Mike Dyche |
1 |
| Darbie Granberry |
1 |
| Paul D. Pratt |
1 |
| Brian Ferguson |
1 |
| Shawn Liston |
1 |
| Lauren Humphries |
1 |
| Mark Fontaine |
1 |
| Rohan Wells |
1 |
| Mark Folsom |
1 |
| Michael West |
1 |
| Lyle Buss |
1 |
| Walter Peraza Padilla |
1 |
| Jason French |
1 |
| Patrick J. Barry |
1 |
| Laird Robinson |
1 |
| Jaacov Katan |
1 |
| Mark Schwarzlander & Patrick Hafliger |
1 |
| Raymond Carruthers |
1 |
| Mandy Frake |
1 |
| Tony Davison |
1 |
| Paul Harris |
1 |
| Carol Bell Randall |
1 |
| Steve Cathey |
1 |
| Rosa Henderson |
1 |
| Janco Tanis |
1 |
| Alfred Brousseau |
1 |
| Howard Thresher |
1 |
| John Wrigley |
1 |
| Robert Eplee |
1 |
| Bob Cain |
1 |
| Hughen Nourse |
1 |
| John Randles |
1 |
| Johnny Randall |
1 |
| Steven Steele |
1 |
| Stéphan Robichaud |
1 |
| J. Pinon |
1 |
| J.C. Follin |
1 |
| H. Hashimoto |
1 |
| Gabriele & Hermann Robels |
1 |
| Greig Peters |
1 |
| Clinton Bodine |
1 |
| Michael Frank |
1 |
| Y. Mamiya |
1 |
| Norm Erickson |
1 |
| Richard S. Hammerschlag |
1 |
| Trial Gardens Archive |
1 |
| Dean Biggins |
1 |
| John and Karen Hollingsworth |
1 |
| Biological Control of Weeds in the West Field Guide |
1 |
| Lloyd Andres |
1 |
| James A. Richmond |
1 |
| Leland Brown |
1 |
| Chris Steiner |
1 |
| Doug Allan |
1 |
| Jack DeLoach |
1 |
| James Everitt |
1 |
| William White |
1 |
| Tom McAvoy |
1 |
| J.N. Sasser |
1 |
| A.D. Cushmon |
1 |
| George Musil |
1 |
| Thomas Ellis, Jr. |
1 |
