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种植的大葱出苗的时候就发现大葱叶部有白色斑点,种植后有的白斑逐渐扩大并细密连片,甚至叶尖干枯,严重时叶部下垂扭曲,变黄枯萎,致使叶部不能食用,对大葱产量和品质影响极大。以往我们都是按一些有经验的人告诉我们的方法:用1605、3911或甲胺磷喷,要不就浇施。现在提倡绿色食品,这些药都是禁用药。葱蓟马,又名烟蓟马,主要为害洋葱、香葱、小葱、大葱、韭葱等百合科蔬菜和烟草、棉花等。以成虫越冬为主,也可以若虫在葱、蒜叶鞘内侧、
Growing green onions when the emergence of the leaves found on the white spots, after planting some white spots gradually expanded and intimate contiguous, and even tip dry, serious leaves drooping distorted, turn yellow withered, resulting in leaves can not eat, on the Onion production and quality greatly affected. In the past we are some experienced people to tell us the method: with 1605,3911 or methamidophos spray, or else poured facilities. Now promote green food, these drugs are forbidden drugs. Thrips tabaci, also known as Thrips tabaci, the main damage onions, chives, shallots, green onions, leeks and other Liliaceae vegetables and tobacco, cotton and so on. To adult wintering, nymphs can also be onions, garlic leaf sheath inside,