Abstract
The effects of misting frequency and temperature regime on basidiospore infection and lesion development of target spot of tobacco were determined. Three isolates of Thanatephorus cucumeris (Rhizoctonia solani AG-2-2) produced hymenia and basidiospores equally when exposed to moderate temperatures and extended periods of high relative humidity. Optimum temperatures for hymenium production, infection, and lesion development were 16-30, 20-26, and 20-30 C, respectively. Hymenium production was very minimal at temperatures above 30 C or at any temperature in the absence of misting (...)
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