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榆绿叶甲在山东省菏泽、德州、聊城及惠民等地区发生普遍而严重,成虫、幼虫均危害榆树叶片,严重时能将叶片全部吃光。据菏泽县1980年调查,由于此虫危害每年榆树降低生长量约7000立方米。为了寻求有效的防治方法,我们于1983年5月份利用灭幼脲1号对不同龄期的幼虫作了药效试验,并取得一定效果。 一、材料和方法 (一)、药剂来源:灭幼脲1号(TH6040)由江苏省金坛昆虫激素研究所提供。 (二)、配制方法:丙酮:土温80=1:100:2的比例配成母液,然后再按所需浓度加水稀释。
Elm leaf chlorophyll in Heze, Texas, Texas, Liaocheng and Huimin and other areas of widespread and serious, adults, larvae are endangering elm leaves, severe all the leaves can be eaten. According to Heze County survey in 1980, due to the pest damage to Elm every year to reduce the growth of about 7000 cubic meters. In order to seek effective control methods, in May 1983, we used diflubenzuron 1 to test the larvae of different instars and achieved some results. First, the material and methods (A), the source of Pharmacy: diflubenzuron 1 (TH6040) provided by the Jiangsu Province Jintan insect hormone research institute. (B), preparation methods: acetone: soil temperature 80 = 1: 100: 2 ratio dubbed the mother liquor, and then diluted with water at the required concentration.