Infected chestnut (Castanea) with girdling canker
Photo Gallery
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P. katsurae disease symptoms  |
P. cambivora disease symptoms  Crown symptoms of Ink disease on sweet chestnut |
P. palmivora colony morphology on V8  Growth of P. palmivora on V8 agar |
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P. cactorum oogonium  Oogonium with paragynous antheridia close to oogonial stalk. Oospores are slightly aplerotic. |
P. cactorum sporangia  Broadly ovoid, papillate sporangia in water. |
Dead Port Orford Cedar trees  Dead Chamaecyparis lawsoniana trees along road |
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P. pluvialis - appearance of new growth  Tufted appearance of new growth from surviving buds on Douglas-fir, one year after defoliation. |
P. austrocedrae - necrotic lesion in phloem  |
P. cambivora disease symptoms  Ink disease impact in sweet chestnut forest in Italy |
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P. siskiyouensis canker on Italian alder  Phytophthora collar rot on Italian alder trees: an isolated bleeding canker on the trunk |
P. megasperma sporangium  Ovoid, non-papillate sporangia |
P. katsurae oogonia  Oogonia with ornamentation |