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VOL. 6, ISSUE 4 (2024)
Current scenario of chilli leaf curl virus disease in major chilli growing regions of north Karnataka, India
Authors
Prashanth S V, Aswathanarayana D S, Amaresh Y S, Govindappa M R, Temburne B V
Abstract
Chilli is an economically important spice as well as vegetable crop and
affected by leaf curl disease caused by chilli leaf curl virus a begomovirus
transmitted by Bemisia tabaci is one of the main constraints hindering its
cultivation worldwide. Due to its continuing and rapid spread, leaf curl
disease epidemics are observed across the agro climatic regions of India.
Information of its distribution, severity, host cultivars and vector abundance
help in determining its management. The present investigation was carried out
to assess the current status of chilli leaf curl virus disease incidence in
North Karnataka is undertaken during 2023-24. Survey results revealed the
prevalence of ChLCV across the region ranging from 4.76 to 92.67 per cent
incidence. Among the six districts surveyed, the highest incidence of 53.49 per
cent was noticed in Ballari district followed by Raichur (48.68%), Yadgir
(38.04%), Haveri (37.96%), Dharwad (24.46%) and minimum incidence was observed
in Gadag district (14.25%). The highest disease incidence was found in Ballari
and Raichur districts. On different varieties/hybrids maximum incidence of
chilli leaf curl virus was observed on Byadgi Kaddi (52.75%), least incidence
on HPH-5531 (25.63%) and Mahyco (14.34%). Due to the consistent availability of
primary inoculum sources and the annual cultivation of chilli for both green
and dry fruits, coupled with the presence of a whitefly biotype complex and
alternate hosts like cotton and brinjal, there is a significant increase in
whitefly populations near chilli crops. This information helps in identifying
the virus and vector free less intensive areas for successful chilli
cultivation and also develops suitable and effective chilli leaf curl disease
management strategies.
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Pages:41-48
How to cite this article:
Prashanth S V, Aswathanarayana D S, Amaresh Y S, Govindappa M R, Temburne B V "Current scenario of chilli leaf curl virus<i> </i>disease in major chilli growing regions of north Karnataka, India". International Journal of Ecology and Environmental Sciences, Vol 6, Issue 4, 2024, Pages 41-48
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