若干殺蟲藥劑對褐飛蝨卵的毒殺效果

Abstract

從目前推荐於褐飛蝨防治藥劑中選出9種噴佈用劑及4種粒劑型藥劑於是內測定其對褐飛蝨卵的毒殺作用。產於稻株組織內之一日齡卵供作試驗材料。試驗結果顯示Ortho Bux G或EC均具有相當程度之殺卵作用，Hostathion EC, 及Furadan G亦具中等程度之毒卵作用。 Nine organophosphorus and carbamate insecticides were determinated for their effect on the egg of the brown planthopper in lablratory conditions. One-day-old eggs which were deposited on 30-day-old potted plants were used as experimental material. Ortho Gux G. at the rate of 2 kg ai/ha and Hostathion EC. at a 0.05% concertration had the highest ovicidal effect, Furadan G. at the rate of 1.8 or 1 kg ai/ha, Ortho Bux EC at a 0.05% concentrationhad medium ovicidal action.