论文部分内容阅读
粟芒蝇(Atherigona biseta Karl)又叫粟秆蝇,是晋东南区谷子的主要害虫之一。夏谷一般被害率20—30%,重者达70—80%。由于幼虫钻入谷苗心叶,成虫发生期和寿命较长,一般农药防效较差。通过1982年和1983年试验示范,认为25%速灭菊酯超低量喷雾防治粟芒蝇是一项高效省工的新技术。一、材料与方法25%速灭菊酯通用油剂由北京农业大学土化系农药厂提供,采用超低容量喷雾。由于成虫迁飞,超低量喷雾有飘移累加效应,故用完全随机设计方法,小区面积扩大为0.9亩。调查数据经(?)转换后,按完全随机设计资料进行方差分析。二、结果与分析1.药效及防治适期 1982年在本所和陵川县夺火大队,对春谷田越冬代成虫和夏谷
Atherigona biseta Karl, also known as corn stalk fly, is one of the major pests of the millet in southeastern Shanxi. Summer Valley damage rate of 20-30% in general, severe cases of up to 70-80%. As the larvae dig into the heart of the seedling leaves, adult life expectancy and longer, generally less effective pesticide control. Through the pilot demonstration in 1982 and 1983, it is considered that the ultra-low spraying of 25% monoglyceride against poppy asiatica is a new efficient and efficient technology. First, the material and methods 25% Zhulvone Universal oil from Beijing Agricultural University, Department of Pesticides pesticide plant to provide ultra-low volume spray. Due to the migration of adults, ultra-low volume spray accumulation effect drift, so completely random design method, the area expanded to 0.9 acres. After the survey data was transformed by (?), The analysis of variance was conducted according to the completely randomized design data. Second, the results and analysis 1. Efficacy and prevention and control of the appropriate period in 1982 and the Lingchuan County fire brigade, on behalf of the Spring Valley adult and summer Vale