Nursery grown California mugwort plant (Artemisia douglasiana) infected with P. tentaculata and exhibiting severe root and crown rot
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P. tentaculata disease symptoms on California mugwort  |
P. katsurae disease symptoms  Infected chestnut (Castanea) with girdling canker |
P. pseudosyringae sporangia  Ovoid, semipapillate sporangia showing sympodial development of sporangiophore |
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Phytophthora cactorum disease symptoms on English walnut  Dieback of Juglans regia caused by Phytophthora cactorum |
P. frigida symptoms 4  Black wattle timber with symptoms of gummosis |
Phytophthora cactorum disease symptoms on English walnut  Mortality of Juglans regia caused by Phytophthora cactorum. |
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P. pluvialis colony morphology on carrot agar  Colony morphology on carrot agar at 20 days |
P. palmivora symptoms on fruit  Brown rot on a lemon fruit caused by Phytophthora palmivora. |
Dead and healthy Port-Orford cedar seedlings  Port-Orford-cedar seedlings planted to test for Phytophthora lateralis resistance at the Dorena Genetic Resource Center |
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P. pluvialis symptoms on Douglas-fir needles  Symptoms of red needle cast on Douglas-fir needles |
P. nicotianae colony morphology on CMA  Phytophthora nicotianae CBS 321.49 CMA after 7 days at 24 degrees. Photo from Q-bank: www.q-bank.eu, Henk Brouwer (CBS-KNAW, Utrecht, The Netherlands) |
P. kernoviae colony morphology  From Mycol.Res 109, 853-859; growth on CA under different conditions |