sudden oak death |
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Peronosporales > Peronosporaceae > Phytophthora ramorum S. Werres, A.W.A.M. de Cock
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Identification, Biology, Control and Management Resources
Selected Images
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Number: | 1427111 |
Description: | Symptoms; This leaf was confirmed as positive for P. ramorum by Jenny Davidson. |
Photographer: | Joseph O'Brien, USDA Forest Service |
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Number: | 1427069 |
Description: | Sign; Signs of bleeding caused by P. ramorum infection on lichen-covered bark of coast live oak. |
Photographer: | Joseph O'Brien, USDA Forest Service |
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Invasive Reference(s)
Subject Reference(s)
- The Exotic Forest Pest Information System for North America (EFPISNA) is a joint project of the member organizations of the Insect and Disease Study Group of the North American Forest Commission. -
http://www.exoticforestpests.org/
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