目前,我国用于防治儲粮害虫的化学药剂,除馬拉硫磷外,多为高毒或中毒品种。其中大量使用的六六六、二二三,由于累积中毒問題,有些国家已經禁止或控制使用。而且,由于仓庫长期使用这些药剂。据反映,仓庫害虫的抗药性問題已日趋突出。另一方面,作为儲粮防护剂的馬拉硫磷,虽是一高效低毒品种,但由于本身的不爽气味和有效期較短,也影响了使用推广。因此,急需寻求一些高效低毒的品种取而代之。为此,我所在有关单位的大力支持下,先后收集了近几年来国內研制的辛硫磷等十余种高效低毒或中等毒性的农药样品,并在实驗室合成了溴硫磷样品。同时进行了室內 At present, the chemical agents used to control stored grain pests in our country are mostly highly toxic or poisoned except malathion. Among them, 666 and 223 are used in large quantities. Some countries have banned or controlled their use due to the problem of cumulative poisoning. And, because of the long-term use of these agents in warehouses. According to reports, the problem of resistance of storage pests has become increasingly prominent. On the other hand, malathion, as a food preservative, is a high-efficiency and low-toxicity species, but its own unpleasant smell and short duration also affect the promotion of use. Therefore, it is urgent to seek some high-efficiency and low-toxicity varieties instead. To this end, with the strong support of the relevant units, we have successively collected over ten kinds of highly effective low-toxic or moderate-toxicity pesticides such as phoxim that have been developed domestically in recent years and have synthesized bromophosphates samples in the laboratory. At the same time carried out indoors