今年全国许多地方水稻田稻飞虱发生严重,许多农民担心今年套播在稻田内的小麦出苗后会遭受稻飞虱危害。据了解,褐飞虱食性专一,只能在水稻和普通野生稻上取食和繁殖后代,不取食小麦等其他作物,对小麦没有危害。褐飞虱为迁飞性害虫,在长江流域及其以北地区的褐飞虱长翅型成虫,一 This year, rice planthoppers in many parts of the country are seriously affected. Many farmers are worried that this year, wheat that is planted in paddy fields will be endangered by planthoppers. It is understood that brown planthopper food-specific, only in rice and wild rice on the feeding and breeding offspring, do not feed other crops such as wheat, no harm to wheat. Nilaparvata lugens is a migratory pest, and the brown planthopper long-winged adults in the Yangtze River and its northern region, one