About Lesson
Etiology:
- olivaceous-grey with white patches.
- conidiophores bearing fusiform conidia that emerge through stomatal pores in the plant epidermis
Favorable condition:
- warm temperatures, 27 °C.
- high humidity, relative humidity of 90% or higher for 12 hours or more.
- Extended periods of leaf wetness (~13 hours) allow infection of leaves
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