Скачать или смотреть Chilli Leaf Curl Virus

Chilli Leaf Curl Virus

Chilli leaf curl virus is a DNA virus from the genus Begomovirus and the family Geminiviridae. ChiLCV causes severe disease especially in pepper (Capsicum spp.), but also affects other crops such as tomato (Solanum lycopersicum).It can be found in tropical and subtropical regions primarily in India, but has also been detected in countries such as Indonesia and Sri Lanka.This virus is transmitted by an insect vector from the family Aleyrodidae and order Hemiptera, the white fly Bemisia tabaci. The primary host for ChiLCV are several Capsicum spp., but host species also include tomato and amaranth.ChiLCV has been responsible for several epidemics and causes severe economic losses. It is the focus of research trying to understand the genetic basis of resistance. Currently, a few sources of resistance have been discovered and used to breed resistant varieties.
The main symptoms are an upward curling, puckering, and bunching of leaves. The leaves are also reduced in size. Severely affected plants produce fewer, smaller, and deformed fruits.This virus can cause significant yield losses. In the case of mixed infections or pests such as thrips or mites, losses may be as severe as 90–100%,but typically range from 20-50%.Treatments that are commonly used for this disease include insecticides, removing infected plants, and growing varieties with genetic resistance.
Currently, the most widespread treatments used to control the spread of ChiLCV are a wide range of insecticides.[citation needed] Rouging infected plants and destroying infected fields is also used when necessary.

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