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水稻生长后期易受气候、耕作制度和栽培条件、害虫自身致害力以及因长期滥用农药导致“两迁”害虫抗药性增强的影响,加上防治技术不到位而形成“两迁”害虫危害。基于此,总结引发“两迁”害虫危害的因素,提出防治对策,以提高结实率,增加杂交水稻产量,为农民增收、粮食增产提供参考。
The late rice growth stage is vulnerable to climate, tillage system and cultivation conditions, the pest’s own virulence and the long-term abuse of pesticide lead to “two shifts” pest insecticide resistance enhancement, coupled with the prevention and control technology is not in place and the formation of Pest damage. Based on this, we summed up the factors causing the harm of pests, proposed control strategies to increase the seed setting rate, increase the yield of hybrid rice and provide reference for farmers to increase income and increase grain yield.