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杀虫双是我国开发的一种沙蚕毒素杀虫剂,经过几年的田间应用,已证明它是取代六六六的优良品种之一。该药是二硫代硫酸酯双钠盐,属强极性化合物,极易溶解在水中,容易被作物根系吸收,并迅速运转到植株各部位,杀虫效果好。但加工剂型只有25％水剂一种,在使用、运输过程中都不够安全、方便,稻田喷雾劳动强度大,且环境污染也较大,杀伤天敌,桑园附近不能使用等等。为解决这些问题,1982年植保所农药室将水剂加工成大粒剂。本试验以放射性同位素S~(35)标记的杀虫双大粒剂,观察该药在盆栽水稻土中的扩散和被吸收情况,为本剂型的推广使用提供一些科学依据。
Insecticidal double is a nereistoxin insecticide developed in our country. After several years of application in the field, it has been proved that it is one of the superior varieties to replace the 666. The drug is dithiosulfate bis sodium salt, is a highly polar compounds, easily dissolved in water, easily absorbed by the crop roots, and quickly run to all parts of the plant, insecticidal effect. However, the processing dosage form is only 25% of a liquid agent, which is not safe and convenient during use and transportation. The labor intensity of rice field spraying is large, and the environmental pollution is also large, killing natural enemies, and can not be used near mulberry fields. In order to solve these problems, in 1982, the plant protection agency pesticide room processed the liquid medicine into large granules. In this experiment, the radioactive isotope S ~ (35) labeled insecticidal double-large granules to observe the proliferation and absorption of the drug in potted paddy soil for the promotion of this dosage form to provide some scientific evidence.