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Fruit spot disease
Causal organism: Pestalotiopsis versicolor (Speg.)
symptoms o The disease manifests its symptoms as minute, brown to rust coloured spots on the fruits. o The spots coalesce with the disease development and cause necrotic patches. o The central portion of the lesion is depressed inwards with raised margin and in case of severe infection, tear open the rind. o In several cases infection penetrates deep into the fruits and causes discoloration of seeds. Mode of survival and Spread The pathogen survives in infected plant parts as dormant mycelia and spreads through airborne conidia Epidemiology The disease is severe during August to November months when there is high humidity and atmospheric temperature between 20 and 27°C Management |
Last modified: Friday, 27 January 2012, 3:47 AM