贮粮害虫的防治农药……战前貯粮用农药只有氯化苦。战后,出現了溴甲烷、磷化鋁片等新药剂。随之又从驅除进入了防治的概念,开始出現了除虫菊酯、丙体六六六、馬拉硫磷、敌敌畏等防虫剂。在使用熏蒸剂的防治中,貯粮經数次熏蒸会逐漸促使品質劣化,所以在使用防虫剂方面采取了积极有效的措施。另外,随着仓庫周围居民住宅稠密化,散发出 Prevention and control of pests stored pesticides pesticide ... ... pre-war storage of pesticides with chloropicrin only. After the war, there were new agents such as methyl bromide and aluminum phosphide. Then they got rid of the concept of prevention and control and began to appear pyrethrins, C66, malathion, dichlorvos and other insecticides. In the use of fumigant control, stored food after several fumigation will gradually lead to deterioration of quality, so the use of insecticide has taken active and effective measures. In addition, as residential buildings around the residence of dense, emitting