Broadly ovoid, papillate sporangia in water.
Photo Gallery
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P. cactorum sporangia  |
Phytophthora cactorum disease symptoms on English walnut  Dieback of Juglans regia caused by Phytophthora cactorum |
P. cactorum sporangium  P. cactorum sporangium |
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Phytophthora cactorum disease symptoms on English walnut  Mortality of Juglans regia caused by Phytophthora cactorum. |
Phytophthora cactorum canker on beech tree  Canker on Fagus sp. caused by Phytophthora cactorum. |
P. cactorum colony morphology on PDA  Colony morphology on PDA at 14 days |