The insecticidal activity of the solid extract and liquid extract from Botrytis cinerea to Myzus persicae(Sulzer) were bioassayed by testing dipping method.
用浸渍法测定灰葡萄孢菌的固体和液体发酵粗提物对烟蚜的触杀活性。
The present paper dealt with the population dynamics of Myzus persicae(Sulzer)and its natural enemies using fuzzy grouping analysis.
本文应用模糊聚类方法研究了烟蚜及其天敌的种群动态。
The results of insect bioassay with peach aphid (Myzus persicae) showed that the transformed plants were aphid ? resistant evidenced by a 6 5.65% reduction in aphid population density.
虫试结果表明，转基因植株对蚜虫密度有明显的抑制作用，平均能抑制蚜虫密度为达65.65％。
The results showed that the two aphids, namely Myzus persicae and Lipaphis erysimi, mainly fed on the underside of young and old leaves.
结果表明，桃蚜和萝卜蚜两种菜蚜，主要在嫩叶和老叶的背面取食，成叶背面也有一定数量，但萝卜蚜在成叶上的发生比率较桃蚜明显要高。
Myzus persicae appeared in the tobacco fields earlier than Dolycoris baccarum, while disappeared later. Its quantity was larger than Dolycoris baccarum.
烟蚜在田间出现时间较斑须蝽早，消失晚，田间数量较斑须蝽大。
Myzus persicae appeared in the tobacco fields earlier than Dolycoris baccarum, while disappeared later. Its quantity was larger than Dolycoris baccarum.
烟蚜在田间出现时间较斑须蝽早，消失晚，田间数量较斑须蝽大。
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