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美国白蛾(Hyphantia cunea Drury)是一种杂食危险性害虫,为害多种作物及园林行道树,因同一时期虫态、虫龄不一,防治较困难。苏脲Ⅰ号(灭幼脲Ⅱ号)是一种低毒低残留、无污染、对人畜安全的昆虫生长调节剂,抑制昆虫体内几丁质合成,使其不能正常蜕皮和变态而死。我们于1985年5月用苏脲Ⅰ号进行了防治试验,现简报如下。一、材料和方法1.药剂:25%苏脲Ⅰ号胶悬剂,林业部林药厂1985年产品。2.供试昆虫:美国白蛾1～3龄幼虫和卵块。
Hyphantia cunea Drury is a omnivorous dangerous pest, which is harmful to many crops and garden road trees. It is difficult to control because of the same state of insects and insects in the same period. Su urea Ⅰ (mefhinol II) is a kind of insect growth regulator with low toxicity and low residue, no pollution and safety to human and animals, inhibiting the synthesis of insects chitin so that it can not molt and pervert and die. We conducted a control test with sulurea in May 1985 and are presented below. First, the material and methods 1. Pharmacy: 25% Su urea No. I suspension, the Ministry of Forestry Lin Pharmaceutical 1985 products. Test insect: American white moth 1 to 3 instar larvae and egg masses.