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小地老虎幼虫危害豆类、茄果类、十字花科等蔬菜的幼苗,使整株死亡。春菜定植后受害较重,常造成缺苗断垄。综合防治措施:①幼虫出现,可用80％敌敌畏或50％辛硫磷800—1000倍液,浇灌菜苗根部杀死幼虫。②将较老的泡桐树叶子,用90％敌百虫1000倍液浸湿,傍晚在菜田每隔3—4米放1片,次日早晨再捕杀桐叶下未死的幼虫。③幼苗定植后,人工捕捉幼虫,连续4—5次,尤其是发现有死苗时,更要认真寻找。④幼虫三龄前,可用0.04％二氯苯醚菊酯粉剂,每亩2公斤加细土15—20公斤,拌均匀施在心叶里。
Small Tigers larvae endanger beans, solanaceae, cruciferous vegetables and other seedlings, the whole plant died. Harvest vegetables harvested heavier, often resulting in missing seedlings broken ridge. Integrated control measures: ① larvae appear, available 80% dichlorvos or 50% phoxim 800-1000 times, watering seedling root kill larvae. ② the older leaves of paulownia trees, with 90% trichlorfon 1000 times wet in the evening in the vegetable field every 3-4 meters to put a piece of the next morning and then kill the dead leaves of the involute larvae. ③ seedling colonization, artificial capture larvae, 4-5 consecutive times, especially when there is dead seedlings, but also to seriously look for. ④ larvae before the third age, available 0.04% Permethrin powder, 2 kg per mu plus fine soil 15-20 kg, evenly applied in the heart leaves.