Crown decline of mature kauri, with branchlets with little or no leaves
Photo Gallery
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P. agathidicia disease symptoms on kauri  |
P. megasperma sporangia  Ovoid, non-papillate sporangia showing internal proliferation of sporangiophore |
P. siskiyouensis sporangia  Sporangia showing a variety of shapes and orientations of semi-papillae and sporangiophores |
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P. agathidicia oogonia  Light micrograph of P. agathidicida oospore (Scale bar equals 15 µm) |
P. pluvialis symptoms  Symptoms of red needle cast on Douglas-fir needles |
P. pinifolia sporangium  Non- papillate and caducous sporangia of Phytophthora pinifolia isolated from the infected P. radiata needles. |
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P. cambivora inactive lesion on chinquapin  Inactive lesion of P. cambivora on chinquapin |
P. cambivora oogonium  Bullate oogonium and and two-celled amphigynous antheridium |
P. ramorum oogonium  Oogonium with thick oogonial wall, photo from Q-bank, used with permission |
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P. ramorum chlamydospores  P. ramorum chlamydospores |
P. pluvialis colony morphology on carrot agar  Colony morphology on carrot agar at 20 days |
P. arenaria sporangia  Globose papillate sporangia of Phytophthora arenaria on V8 agar flooded with soil extract. (Scale bar = 20 μm) |