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近年来安徽省各地种植单季晚稻和双季连作晚稻面积有很大扩展。单、双晚稻由于陆续插秧,有于三化螟繁殖为害。迟栽晚稻的分蘖期常与第三代三化螟盛孵期相遇,枯心最为严重。稻苗主茎受害后,再生的分蘖常常莠而不突,产量损失很大。自1955年开始,我所用6％可湿性六六六对晚稻枯心进行多次防治试验,现将有关技术问题分述如下:
In recent years, there has been a great expansion in the area of single-cropped late rice and double-cropped late rice in Anhui Province. Single and double late rice as one after another transplanting rice, in the yellow rice borer breeding damage. The late tillering late rice tillering stage and the third generation of Borer confluence Shengshuai, withered the most serious. After the main stems of rice seedlings are damaged, the regenerated tillers are often attemperate, yield loss is very large. Since 1955, I have used six percent wet six six six pairs of late rice multiple heart disease prevention and control test, the technical problems are described below: