农药剂型与药效,毒性关系的研究

一种或两种农相混合研制成农药缓释剂微胶囊和乳油两种剂，对林业害虫桑天牛、云斑天牛和松褐天牛成虫及马尾松毛虫幼虫进行了药效、残留、持效性和对人畜毒性等比较试验。

STUDIES ON THE RELATIONSHIP BETWEEN INSECTICIDE FORMULATION AND ITS TOXICITY AND PERSISTENCE FOR CONTROLLING FOREST INSECT PESTS

The toxicity, persistence of two kinds of insecticide formulation, microcapsule and emulsifiable concentrate (EC) made from one or two kinds of insecticide, were studied for controlling the larvae of Apriona germari Hope,Monochamus alternatus Hope, Bactocera horsjieldi Hope, and Dendrolimus punctatus Walker' The results showed that either in indoor tests or in field tests microcapsule had better effectiveness, longer duration and lower toxicity to environment than EC. For example, having studied the released quantities in a unit of time and the highest effective contents of SBM--20 microcapsuleand SBE--20 emulsifiable concentrate, and the regularity of the change ofeffective content of insecticide in different formulations and in different times,the authors found that the controlled--release microcapsule had constant release and durable characteristics