Field plots were established in Delray Beach, FL, in the spring and fall of 1984, the spring of 1985, and the fall of 1986 to quantify disease progress and the effect of rainfall and temperature variables on Phytophthora blight of pepper caused by Phytophthora capsici. From point sources of inoculum (diseased plants), the incidence of disease was observed to spread outward over time from the central, primary foci. Disease progress was observed to be influenced by rainfall and the movement of water over the soil and plastic mulch (...)
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John H. Bowers (1990) studied this question.