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5430484 Sign Cheryl Kaiser |
5377019 Life Cycle International Society of Arboriculture |
5469114 Sign Eric Honeycutt |
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5469115 Sign Eric Honeycutt |
5430483 Symptoms Cheryl Kaiser |
5458864 Asexual Spore Bruce Watt |
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5458862 Asexual Spore Bruce Watt |
5458863 Asexual Spore Bruce Watt |
5458860 Asexual Spore Bruce Watt |
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5458861 Asexual Spore Bruce Watt |
5458859 Asexual Spore Bruce Watt |
5458857 Asexual Spore Bruce Watt |
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5458858 Asexual Spore Bruce Watt |
5458855 Symptoms Bruce Watt |
5458856 Symptoms Bruce Watt |
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1247182 Symptoms Terry S. Price |
4215048 Symptoms Fred Baker |
1458054 Symptoms North Carolina Forest Service Archive |
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1301078 Sign Joseph O'Brien |
4822040 Symptoms Edward L. Barnard |
1301076 Symptoms Joseph O'Brien |
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0355036 Symptoms Robert L. Anderson |
2733033 Symptoms Edward L. Barnard |
1442052 Symptoms USDA Forest Service - Region 2 - Rocky Mountain Region Archive |
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4213096 Symptoms Minnesota Department of Natural Resources Archive |
4213093 Symptoms Minnesota Department of Natural Resources Archive |
0454016 Symptoms UK Forestry Commission Archive |
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1301074 Symptoms Joseph O'Brien |
4213094 Symptoms Minnesota Department of Natural Resources Archive |
2252006 Symptoms Jane Taylor |
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2252001 Symptoms USDA Forest Service Archive |
2251098 Symptoms USDA Forest Service Archive |
2252007 Symptoms Jane Taylor |
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5424394 Symptoms John Hartman |
4912014 Symptoms Petr Kapitola |
1398052 Symptoms USDA Forest Service - Northeastern Area Archive |
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1396140 Symptoms USDA Forest Service - Northeastern Area Archive |
4554043 Symptoms Petr Kapitola |
1400152 Symptoms Linda Haugen |
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3227027 Symptoms R. Scott Cameron |
4822041 Infestation Edward L. Barnard |
1398053 Symptoms Steven Katovich |
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1388032 Symptoms Steven Katovich |
1400153 Symptoms Linda Haugen |
1396139 Symptoms USDA Forest Service - Northeastern Area Archive |
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1396136 Symptoms USDA Forest Service - Northeastern Area Archive |
4213095 Symptoms Minnesota Department of Natural Resources Archive |
1301073 Symptoms Joseph O'Brien |
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1396138 Symptoms USDA Forest Service - Northeastern Area Archive |
0454017 Symptoms UK Forestry Commission Archive |
5408097 Asexual Spore Tamla Blunt |
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5408098 Asexual Spore Tamla Blunt |
5383056 Symptoms Fabio Stergulc |
5368586 Sign Paul Bachi |
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5368587 Sign Paul Bachi |
5368588 Sign Paul Bachi |
5368589 Sign Paul Bachi |
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5334062 Symptoms Roland J. Stipes |
5334064 Symptoms Roland J. Stipes |
5368707 Symptoms Paul Bachi |
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Dutch elm disease
Ophiostoma ulmi (Buisman) Nannf.
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Invasive.org is a joint project of the Center for Invasive Species and Ecosystem Health and USDA APHIS PPQ, with additional support from USDA National Institute of Food and Agriculture and USDA Forest Service. The University of Georgia - Warnell School of Forestry and Natural Resources and College of Agricultural and Environmental Sciences |
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Last updated on Tuesday, May 04, 2010 at 02:41 PM