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我国在推广防虫磷前,只能单一使用熏蒸剂,防治面窄、毒性大、无残效,给防治工作带来困难。因此广大农村虫害十分严重。据我所对5个县36个生产队432048斤粮食初步调查表明,种子发芽率平均损失25％,虫蚀损失5％。这与联合国粮农组织对全世界因虫害引起的损失的估计为10％相近。国库虫害防治工作,亦因熏蒸剂缺乏残效,整个储藏期间需重复熏蒸数次,影响四无粮仓的巩固,增加防治费用和污染粮食与环境,为了减少虫害对储粮的损失,浙江省粮科所等单位承担原粮食部下达的防虫磷(优质马拉硫磷)应用技术研究项
Before promoting pest control phosphorus in our country, only a single use of fumigant, prevention and control surface is narrow, toxic, no residual effect, prevention and control work to bring difficulties. Therefore, the majority of rural pests are very serious. According to my preliminary survey on 432048 jin of 36 production teams in 5 counties, the average germination rate of seeds is 25% and the loss of insect pests is 5%. This is similar to the FAO estimate of 10% of the world’s pest-induced losses. Due to the lack of residual effect of the fumigant, the State Treasury pest prevention and treatment work requires repeated fumigation several times throughout the storage period, which affects the consolidation of four non-grain silos, increases the cost of prevention and control and pollutes the food and the environment. In order to reduce pest losses to grain storage, And other units bear the Ministry of Food issued pest control (high-quality malathion) application technology research project