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1984～1985年在福建闽侯对田边杂草中捕食性生物与稻田飞虱及其捕食性天敌的相关性进行了初步的研究。得知山边、沟边、田埂等田边杂草中捕食性天敌的资源十分丰富,有蜘蛛类、步甲类、隐翅虫类、蚂蚁类等,这些类群中的多数种类与稻田捕食性天敌的种类相同,均能捕食飞虱。山边和沟边杂草中益害比为6.61～11.62∶1,田埂杂草中益害比为0.83∶1。蜘蛛是田边杂草中常见的捕食性生物,也是稻田捕食性天敌的优势类群,两者具有明显的相关,对稻田飞虱的自然控制作用显著。此外,田边杂草中的另一些捕食性生物,它们在控制水稻害虫总体上,也都起到不同程度的辅助作用。保护利用田边杂草中的害虫天敌资源,对于维护以水稻为中心的农田生态系统,保持自然平衡,具有重要意义。
A preliminary study was carried out on the relationship between predatory organism and rice planthoppers and their predatory natural enemies in field weeds in Fujian Minhou from 1984 to 1985. It is known that there are abundant resources of predatory natural enemies on the edge of weeds such as hillsides, ditch edges and fields, such as arachnids, beetles, lepidopterans, ants and so on. Most of these taxa are predatory The same types of natural enemies, can predate planthopper. The benefit ratio of weeds in hillside and ditchside was 6.61 ~ 11.62:1, and the ratio of benefit to harm in weeds was 0.83:1. Spiders are common predators in the field weeds and are also the predominant groups of predatory natural enemies in paddy fields. The two have obvious correlation and have a significant natural control effect on rice planthoppers. In addition, some other predators in the field weeds also play an auxiliary role in controlling rice pests as a whole. It is of great significance to protect and utilize the natural enemies of pests in the field weeds in order to maintain the ecological system of paddy-centered agro-ecosystems and maintain the natural balance.