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去年水稻三化螟在淮南发生非常严重,且经各地大力组织防治,基本控制了危害,三代白穗率被控制在0.5%左右,但按此白穗率推算,三代残虫基数较大,大部分地区平均每亩在1000头以上,为今年水稻三化螟的发生提供了大量虫源。多年来的治螟实践表明,仅依赖化学防治措施,不仅增加防治成本,而且不能实现持续控制,还可能带来害虫抗药性上升、环境污染、稻谷农药残留超标等新
Last year, the rice stem borer, Chilo suppressalis, was very serious in Huainan, and was vigorously organized and controlled throughout the country, basically controlling the damage. The white spike rate of the third generation was controlled at about 0.5%. However, based on the white spike rate, In some areas an average of more than 1,000 acres per acre for the occurrence of rice borer this year provides a large number of insect sources. The practice of controlling stem borers over the years shows that relying solely on chemical control measures not only increases the cost of prevention but also can not achieve sustained control and may lead to new problems such as increased resistance to pests, environmental pollution and excessive pesticide residues in rice