Red needle cast symptoms on Douglas-fir in western Oregon, 2015
Photo Gallery
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P. pluvialis symptoms on Douglas-fir  |
P. pluvialis sporangium  Sporangium showing typical ovoid shape and semi-papillate condition |
P. pluvialis symptoms  Symptoms of red needle cast on Douglas-fir needles |
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P. pluvialis sporangia.  P. pluvialis sporangia on tape peel from infected Douglas-fir needle. |
P. pluvialis symptoms on Douglas-fir  P. pluvialis symptoms of red needle cast on Douglas-fir, western Oregon 2015 |
P. pluvialis symptoms on Douglas-fir  Red needle cast symptoms on Douglas-fir in western Oregon, 2015 |
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P. pluvialis symptoms on Douglas-fir  Red needle cast symptoms on Douglas-fir in western Oregon, 2015 |
P. pluvialis - appearance of new growth  Tufted appearance of new growth from surviving buds on Douglas-fir, one year after defoliation. |
P. pluvialis hyphal swellings  P. pluvialis hyphal swellings on agar |
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P. pluvialis oogonium and antheridium  Oogonium and oospore with amphigynous antheridium |
P. pluvialis colony morphology on carrot agar  Colony morphology on carrot agar at 20 days |
P. pluvialis colony morphology on carrot agar  Colony morphology on carrot agar at 20 days |