试论拟除虫菊酯类杀虫剂在水稻田中的应用

The Application of the Pyrethroid in Rice Field

拟除虫菊酯杀虫剂具有高效、安全、广谱及对人畜低毒等特点,在农业上得以广泛应用,已成为杀虫剂市场的支柱之一。但由于其对鱼毒性高,我国禁止其在水稻田使用。随着我国高毒农药的禁用以及水稻害虫对常用药剂抗性的发展,水稻田用药将出现“缺口”。本文介绍了日本、菲律宾和越南等国家应用拟除虫菊酯杀虫剂防治水稻害虫的情况,推荐了一些稻田防虫的拟除虫菊酯品种,并提出了在我国拟除虫菊酯杀虫剂用于水稻田的几点建议。

The pyrethroid insecticide has been applied so widely in agriculture in many countries since the phenothrin, the first product of light stability, was developed that it has became one of key insecticides with the high efficiency, wide spectrum and safety to human and animals. But it is limited to use in rice field in some countries especially in China because it has high toxicity to fish. With the rice pest抯 resistance to organic phosphorus and carbamate as well as the restrict to high toxic pesticides, an urge requirement to develop a new way of killing rice pests is put forward. In this paper, we show the experiences some countries use the pyrethroid in rice field and a few insecticides of this kind with low toxicity to fish. We also give suggestions about the application of the pyrethroid on rice insect pests in our country.