Influence of Weather Parameters on Incidence of Black Spot of Papaya Caused by Asperisporium caricae

Abstract

The severity of the black leaf spot disease of papaya increased with increase in rainfall and during dry spells the disease declined considerably. The maximum disease severity was found during the late winter and spring seasons of the year. In the present study, the disease severity of black spot of papaya was recorded in the TNAU, Orchard at monthly interval for a period of one year from January to December 2018. The results revealed that the disease severity increased progressively from August to November 2018 and the disease was found to be less in summer months. The disease severity was found to reach maximum of 31.21% during the November 2018. The lowest disease severity of 9.45% was found during the month of May 2018.