CURRENT STATUS OF ANTHRACNOSE (FRUIT-ROT ANDDIE-BACK) DISEASE IN FIVE BLOCKS OF CHILLI GROWING AREAS OF GHAZIABAD DISTRICT (U.P.) INDIA

摘要

Fruit rot caused by Colletotrichum capsici (Syd.) Butler and Bisby, is responsible for considerably yield loss (10-60%) in Chillies. Ripe fruit rot is very conspicuous and causes severe damage in the field as well as in storage and transport. The pathogen is prevalent in most Chilli growing areas of India. Two years survey (2016-2017) in five blocks of Ghaziabad district (U.P.) showed that the disease appeared during July and by November the whole crop is damaged. Symptoms appear mostly on ripened fruit is characterized by circular and sunken spots with black margins. Disease incidence varied from 3.6 to 23% when plants are counted. Disease incidence 4.5 to 26% and severity varied from 1 to 4.7 (grade 0=no infection, 1=1-10%, 2=11-25%, 3=26-50%, 4=51-70% and 5=71-100% area of bruit infections). "Power model" was able to explain the relationship between incidence .md severity on fruits which is given by disease severity = 0.2174X (Disease incidence) 21152.