Infected chestnut (Castanea) with girdling canker
Photo Gallery
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P. katsurae disease symptoms  |
P. ramorum leaf symptoms on tan oak  Tip symptoms on tanoak seedling (Notholithocarpus densiflorus). |
P. pseudotsugae sporangia  Broadly ovoid, papillate sporangia in water |
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P. lateralis on Port Orford cedar  Collar lesion on Chaemacyparis lawsoniana in Landrévarzec, France |
P. austrocedrae - Mal del ciprés in Argentina  Mal del ciprés looking toward Rio Grande, Chubut Province, Argentina |
P. siskiyouensis colony morphology on V8  Colony morphology on V8 at 14 days |
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P. pseudotsugae colony morphology on PDA  P. pseudotsugae colony growth on PDA agar |
P. cambivora disease symptoms  Crown symptoms of Ink disease on sweet chestnut |
P. pluvialis sporangium  Sporangium showing typical ovoid shape and semi-papillate condition |
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P. boehmeriae symptoms  Symptoms of gummosis on black wattle (Acacia mearnsii) |
P. siskiyouensis disease symptoms on Italian alder  Phytophthora collar rot on Italian alder trees: standing, dead tree |
P. cinnamomi colony morphology on PDA  P. cinnamomi colony growth on PDA at 14 days |