Bulletin of Pure & Applied Sciences- Botany
  • Year: 2017
  • Volume: 36b
  • Issue: 2

Current status of anthracnose (Fruit-rot and die-back) disease in five blocks of chilli growing areas of Ghaziabad district (U.P.) India

1Monad University, Hapur, (U.P.), India-245101

2C.C.S. University, Meerut, (U.P.), India-250004

3Division of mycology and Plant Pathology, IARI, (New Delhi), India-110012

*Corresponding Author: Dr. Muhammad Javed, Professor and Head, Department of Microbiology, Monad University, Hapur (U.P.), India-245101. Email: mjaved72@gmail.com

Online published on 12 January, 2018.

Abstract

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 fruit infections). “Power model ”was able to explain the relationship between incidence and severity on fruits which is given by disease severity = 0.2174X (Disease incidence) 2.1152.

Keywords

Anthracnose, Prevalence, Incidence and severity SPSS Power model Chillies