Abstract
SUMMARYThirteen granular insecticides were screened under glasshouse conditions for their ability to kill the vector, Nephotettix virescens, and to prevent tungro virus infection. Carbofuran, bendiocarb, isoprocarb, BPMC, disulfoton, mephosfolan and phorate caused 100% vector mortality, but only the first four reduced virus infection to an acceptable level; the remainder killing the vector too slowly to prevent virus transmission. Seven of these compounds were evaluated in the field on two test cultivars, Traichung Native 1 and Pankaj. Carbofuran, isoprocarb and BPMC gave acceptable control of the disease on both cultivars and diazinon on cv. Pankaj only.
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