小花蝽对几种主要害虫的捕食量观察

• 作 者: 苗春生 孙玉英
• 机 构: 河北省农科院沧州农科所,河北省农科院沧州农科所
• 出 处: 昆虫知识
• 发表日期: 1987年03期
• 关键词: 花蝽 捕食量 捕食性天敌 棉铃虫 害虫天敌 棉蚜 旱粮作物 蓟马 抑制作用 玉米螟

小花蝽Orius minutus Linnaeus是一种捕食性天敌。通过1979—1983年对河北省旱粮害虫天敌资源的调查,我们发现小花蝽在旱粮作物上分布广泛,尤其在谷田和高梁田发生量很大,在我省务农业区均已采到。同时还发现小花蝽对棉蚜和棉铃虫有一定的抑制作用。但是,小花蝽的捕食对象和日捕食量不清,因而障碍了评定利用价值和确定保护利用的工作,故开展了此项研究。现将1983—1984年工作总结如下。

Orius minutus Linnaeus is a predatory natural enemy. Through the investigation of natural enemies of drought-stained pests in Hebei from 1979 to 1983, we found that Stink bug is widely distributed on dry-land crops, especially in Gutian and Gao Liangtian, and has been collected in agricultural areas in our province. At the same time, it was also found that the stink bug had a certain inhibitory effect on cotton aphid and cotton bollworm. However, this study was carried out when the predatory flies and their daily predation were not clear, which hindered efforts to assess the value of utilization and to determine the protection and utilization. The work of 1983-1984 is summarized as follows.