Dieback of Juglans regia caused by Phytophthora cactorum
Photo Gallery
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Phytophthora cactorum disease symptoms on English walnut  |
P. lateralis sporangia  Sympodial sporangiophore with external proliferation |
P. nicotianae symptoms 2  Symptoms of gummosis on black wattle (Fitopatol. bras. 2005) |
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Black pod disease of cacao caused by P. palmivora  Black pod of cacao in Ecuador caused by P. palmivora (see lesioned fruit on left). |
P. agathidicia oogonia  Light micrograph of P. agathidicida oospore (Scale bar equals 15 µm) |
P. ramorum leaf symptoms on tan oak  Tip symptoms on tanoak seedling (Notholithocarpus densiflorus). |
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P. ramorum chlamydospores  P. ramorum chlamydospores |
P. boehmeriae sporangium  Sporangium showing ovoid and ovoid to spherical shape and papillate condition |
P. ramorum sporangia and chlamydospores  Sporangia and chlamydospores of P. ramorum |
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P. boehmeriae oogonia  Oogonia and oospores with amphigynous antheridia |
Growth of P. megakarya on PDA  Growth of P. megakarya on potato dextrose agar |
P. kernoviae colony morphology on V8  Colony morphology at 7 days at 18°C on V8, photo from Q-bank, used with permission. |