论文部分内容阅读
经1987~1996年10年对河南开封花生蚜虫田间发生规律的观测研究,作者认为,蚜虫是河南花生生产上的主要害虫之一,每年都有不同程度的发生。研究结果表明,花生蚜虫的年度流行程度取决于花生苗期(5~6月份)的降雨量和相对湿度,初步肯定了三者之间的直线相关关系
Observations on the field occurrence patterns of peanut aphids in Kaifeng, Henan province during 1987 to 1996 ten years showed that aphids are one of the major pests in peanut production in Henan Province and occur to varying degrees every year. The results showed that the annual prevalence of peanut aphids depended on the rainfall and relative humidity at the peanut seedling stage (May-June), and initially affirmed the linear correlation among the three