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化学防治棉铃虫最严重的世代,全国各地根据具体情况提出了各自的看法,综合起来有几种意见:第一认为药剂防治以打在产卵的高峰期为适宜;第二认为孵化初期就应该施药。究竟以那种意见正确?遵循伟大领袖毛主席教导:“无论何人要认识什么事物,除了同那个事物接触,即生活于(实践于)那个事物的环境中,是没有法子解决的。”为了摸清棉铃虫卵的变化,我站先后于1973—1974年对四、五两代棉铃虫卵的变化情况作昼夜观察。两年来卵色变化的进度基本相似。现就1974年9月初观察的棉铃虫卵色变化情况记述如下:
The most serious generation of chemical control cotton bollworm, all over the country put forward their own views according to the specific circumstances, summed up several opinions: the first that the chemical control in order to fight at the peak of spawning is appropriate; the second that should hatch early Application. What kind of opinion is correct? Follow the great leader Chairman Mao taught: “No matter what people want to know, in addition to contact with that thing, that is, living in (practicing) that environment, there is no way to solve.” To touch Clear cotton bollworm eggs changes, I stand in 1973-1974 on the four, five generations of cotton bollworm eggs changes observed day and night. Over the past two years the progress of egg color changes are similar. Now on the beginning of September 1974 observed changes in the color of cotton bollworm described below: