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七十年代以来,褐稻虱继三化螟而起成为我区的主要稻虫。根据各种捕捉手段捕获的结果表明:褐稻虱迁飞群体,对于一个具体地域来说,具有迁入或过境的两种趋势;地方群体也具有迁出或储留繁殖的两种可能。而最终确认迁入或迁出某一具体地域,并给这个地域可能带来的影响,是地方测报面临的一个需要解决的普遍问题。研究认为,褐稻虱的迁入储留或迁出准备在生理上和行为上都有一些相应的征象。几年来,我们对一些迁飞的地面征象进行了观察研究,希望利用这些征象做为监测迁飞的依据,
Since the seventies, brown planthopper following the three stem borer has become my area’s main rice pest. The results captured by various capture methods show that the migration of brown planthoppers has two trends of migration or transit for a specific region and two possibilities for local migration or migration. The final confirmation of moving into or leaving a specific area, and the possible impact on the area, is a common problem facing local area newspapers. The study suggests that the brown planthopper migrate to reserve or move out of preparation for both physical and behavioral have some corresponding signs. In recent years, we have observed and studied some ground-moving signs of migration and hope to use these signs as a basis for monitoring the relocation.