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油菜毒素病为油菜的主要病害之一,近年来蔓延甚广,损失产量一般达5～10%。由于1959年秋冬雨水少、气温高,有利蚜虫滋生繁殖,传病机会增加,使今年油菜毒素病有发病早、发展快、面积大、为害重的趋势,对油菜跃进增产有严重威胁。为摸清发病规律,提出有效的防治措施,我所特组织人力,分组前往温州、瑞安、建德、余姚、绍兴、肖山、平湖、海宁等地,选点进行调查,并在杭市良渚公社吴家埭生产队小农场进行药剂防治试验。茲将调查结果,总结如下:
The canola toxin disease is one of the main diseases of rapeseed. It spreads widely in recent years, and the loss of yield is generally 5 to 10%. Due to the small amount of rainfall in autumn and winter of 1959, the temperature is high, the aphids will breed and multiply, and the opportunity of disease transmission will increase. This year the tendency of rape toxin disease is early onset, rapid development, large area and serious damage, which poses a serious threat to the rapeseed yield increase. In order to find out the law of onset and put forward effective prevention and control measures, I organized a special team to go to Wenzhou, Ruian, Jiande, Yuyao, Shaoxing, Xiao Shan, Pinghu, Haining and other places for investigation. Houzhu commune Wujialu production team small farms for pharmaceutical control trials. The survey results are summarized as follows: