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果树、蔬菜一年四季都遭受蚜虫为害,各地果农、菜农多用乐果或六六六、二二三进行防治。这些化学农药防效尚好,但污染严重,特剐是六六六、二二三,它们的有效杀虫成分是有机氯,施在果树、蔬菜上,就会被果实和菜叶直接吸收,不仅果、菜品质降低,而且人畜食后对健康危害极大。如采用烟草石灰水防治蚜虫,效果既好,使用又安全,既不污染环境,又可避免人畜积累中毒。烟叶的有效杀虫
Fruit trees and vegetables suffer from aphids all year round. Fruit farmers and vegetable farmers everywhere use dimethoate or 666 and 223 for control. These chemical pesticides are still good control effect, but the pollution is very serious, special li is six six six, two two three, their effective insecticidal component is organochlorine, applied to fruit trees, vegetables will be directly absorbed by fruits and leaves, not only Fruit, vegetables lower quality, but also great harm to human health after eating. Such as the use of tobacco lime prevention and control of aphids, the effect is good, the use of safe, neither pollute the environment, but also to avoid the accumulation of livestock and poultry poisoning. Tobacco effective insecticide