Population dynamics of Phytophthora capsici were monitored in artificially infested plots in fields planted with bell peppers (Capsicum annuum). Plots were drip-irrigated on either a more frequent (three times per week) or a less frequent (one or two times after infestation) schedule and were infested with one of three levels of inoculum or left uninfested. Pathogen population densities increased and then decreased over time in each field. In a field with moderate rainfall, plots had population densities of 0, 5, 18, and 41 cfu/g of dry soil at the time of infestation (.)
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Jean B. Ristaino (1992) studied this question.