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稻瘿蚊[Pachydiplosis oryzae Wood-Mason]是云南南部稻区的主要害虫之一。一般对迟栽稻和双季稻晚稻的为害率达20～30％;严重的达50％,少数田甚至被害失收,因而成为发展双季稻的严重障碍。由于稻瘿蚊每年发生世代多(一般6—8代),且世代重叠;为害高峰又处在雨季(6—8月),不但施药防治困难,而且防效常受雨水影响而不佳,以至成为生产上长期难以解
Pachydiplosis oryzae Wood-Mason is one of the major pests in rice fields in southern Yunnan. In general, the damage rate to late rice and late rice is 20-30%. Severe up to 50%, even a few fields are even killed and thus become a serious obstacle to the development of double cropping rice. Due to the occurrence of rice gall midge many generations per year (usually 6-8 generations), and generations overlap; the peak of damage in the rainy season (June-August), not only difficult to control the application, and the control effect is often poor and affected by the rain, As well as long-term production difficult to understand