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随着耕作制度的改革,高产矮秆品种的推广,施肥水平的提高,我省水稻产量不断提高,但也使水稻病虫出现新的变化。近年来我省水稻施药量越来越高,大量不合理使用农药并未有效地控制水稻害虫的危害,反而杀伤了大量天敌,破坏了稻田生态平衡,造成某些害虫连年暴发;不合理大量使用农药也带来稻谷农药残留和环境污染问题。因此水稻害虫实行综合防治已成为急待解决的课题。
With the reform of farming system, the popularization of high-yield dwarf varieties and the improvement of fertilization level, the yield of rice in our province has been continuously increased, but new changes have also emerged in rice diseases and pests. In recent years, the amount of rice in our province is getting higher and higher, a large number of unreasonable use of pesticides did not effectively control the harm of rice pests, but killing a large number of natural enemies, destroying the ecological balance of paddy fields, causing pests year after year outbreaks; unreasonably large The use of pesticides also causes rice pesticide residues and environmental pollution problems. Therefore, the implementation of integrated pest control has become an urgent issue to be solved.