应用几类杀虫剂来保护贮藏物品是为所共知的。在粮食仓庫里,曾应用林丹、馬拉硫磷等杀虫剂来防治贮粮虫害,收到了一定的效果。但由于林丹是有机氯化合物,不易分解,有积累性;所以有些国家已停止或限止使用了。馬拉硫磷的效果虽好,但一些贮藏物昆虫对它已产生抗药性;所以必須去研究新的高效低毒的杀虫剂来取代它。 It is well known to use several types of insecticide to protect stored items. In the grain storage, pesticides such as lindane and malathion were used to prevent and control stored grain and insect pests and received some results. However, lindane is an organochlorine compound that is not easily decomposed and accumulate; therefore, some countries have stopped or banned their use. Although malathion is effective, some stored insects have become resistant to it; therefore, it is imperative to look for new high-potency, low-toxic insecticides to replace it.