Hill banana, one of the choicest varieties of banana is grown under rainfed conditions as a mixed crop with coffee In Lower Palanis and Sirumalai hills. The very existence of this plantation crop is threatened by the bunchy top virus disease. As there is no chemical for the present to inactivate the virus, in vivo, the alternative is to reduce the source of inoculum by phytosanitation and to control the vector movement by application of insecticides (Regupathy and Kulasekaran, 1980).
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