论文部分内容阅读
为了使敌虫菊酯兼治螨害,延长使用寿命,我们于1982、1983两年进行了敌虫菊酯与其它杀虫剂混用的初步研究。试验处理包括两种不同配比的酯脒混剂、敌虫菊酯、杀虫脒单体对照及常用农药八八九共六个。小区面积0.9厘,随机排列,三次重复。按当地防治棉红铃虫要求施药,前二次每亩120斤,后五次每亩200斤,采用常规方法考查防虫效果和产量。以籽棉实收产量和农药成本综合评述其经济效益(见表)。试验结果表明,20％(1:5)酯脒混剂防治棉红铃虫的效果介于敌虫菊酯1两与0.5两二个处理之
In order to make Pyrethrins both mite harm and prolong life, we conducted a pilot study of the mixture of pyrethrins and other insecticides in 1982 and 1983. Test treatment includes two different ratios of esteramide mixture, pyrethrins, chlordimeform monomer control and eight hundred eighty-nine common pesticides six. Residential area of 0.9%, arranged randomly, repeated three times. According to the local control cotton bollworm required pesticide application, the first two 120 kg per mu, after five times 200 acres per acre, using conventional methods to test the pest control effect and yield. The economic benefit of the actual production of seed cotton and pesticide was summarized (see table). The results showed that the effect of 20% (1: 5) esfenidine mixture on preventing and controlling cotton bollworm was between two two and one two of 0.5