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斜纹夜蛾:为害甘蓝、花椰菜、白菜、萝卜等十字花科蔬菜,茄科、葫芦科、豆科、洋葱、韭菜、菠菜等农作物达99科290种。幼虫食多种蔬菜的叶可致缺刻,甚至全叶食光。在甘蓝、白菜上可蛀入叶球、心叶,造成腐烂。防治:秋冬季深翻地,可杀死部分越冬蛹;人工捕杀群集幼虫,保护集生蝇、绒茧蜂等天敌。利用黑光灯、糖醋液诱杀成虫;用杀螟杆菌菌粉300~500倍液喷雾杀幼虫;在幼虫发生初期可用5%抑太保,或5%卡死
Spodoptera: Damage to cabbage, broccoli, cabbage, radish and other cruciferous vegetables, Solanaceae, Cucurbitaceae, legumes, onions, leeks, spinach and other crops up to 99 families 290 species. Larvae eat a variety of vegetable leaves can cause nicks, and even the whole leaf food. In cabbage, cabbage can be eaten into the leaves of the ball, the heart leaves, causing decay. Prevention: autumn and winter deep plowing, can kill part of the wintering pupae; artificially kill the cluster larvae, to protect the collection of fly, callus and other natural enemies. Use of black light, sweet and sour fluid trapping adult; with 300-300 times the diameter of the bemidis bacterium powder spray to kill larvae; 5% of the initial duration of larvae can be staminated, or 5% stuck