THE PRIMARY INVESTIGATION OF EPIDEMIOLOGY ON THE BUZURA SUPPRESSARIA NUCLEAR POLYHEDROSIS VIRUS(NPV)
Abstract: Buzura suppressria NPV has been the most widely used virus by artificial dissemination of NPV in the tea plantation with trial conducted in Hubei, Guangdong. Jiangxi go on. In puqi, in 1979, 1981, 1983. dosages of 2×10~6PIB/ml, were tested and Tea garden were sprayed to 750 liter/ha. At 10 days postspray these dosages gave 97.8% mortality, with 12% mortality, respectively, with 15% mortality on untreated Any way, BsNPV had maintained in a viable state on foliage for more days or several years. The polyhedra...