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菜青虫为害蔬菜,广为人知,严重时甚至把叶片吃得精光,给蔬菜生产带来很大影响。一般菜农通常是采用农药进行防治。其实,利用菜青虫颗粒体病毒进行防治,不仅防治效果可达95—100％,而且对人、畜、植物安全,对环境无污染还可节省成本,应提倡推广。发现蔬菜有菜青虫时,可到菜园里捡几条倒悬在叶缘上呈弯曲形的因感染颗粒体病毒而死的菜青虫死尸,捣烂成酱,每条虫尸兑水2—2.5公斤,搅拌均匀,然后对受菜青虫为害的蔬菜进行喷施或洒施,即可达到杀虫目的。捡回的菜青虫死尸若不马上使用,还
Cabbage pests harmful to vegetables, is well known, and even serious leaves eaten, bring great impact on vegetable production. The average farmer usually uses pesticides for prevention and treatment. In fact, the use of Pieris granulosis virus prevention and control, not only the control effect of up to 95-100%, but also on human, livestock, plant safety, pollution-free environment can also save costs, promotion should be promoted. Found vegetables cabbage caterpillars, you can pick up the garden to pick up a few hanging in the leaf edge was curved form of cabbage worm died of infecting granulosis virus, smashed into a sauce, each dead corpse watered 2-2.5 kg , Stir, and then by the cabbage insect pests spraying or spraying, you can achieve the purpose of insecticide. If the dead carpenter corpse is not used immediately, also