论文部分内容阅读
黄瓜霜霉病是黄瓜生产上危害较重的一种病害,无论是温室、大棚,还是露地栽培均可发生。近年来,我乡的黄瓜种植面积发展很快,霜霉病的防治也就成为一个突出问题,每年从4月初开始,一直到冬季温室生产都有发生。我们在实践中先后使用了代森锌、乙磷铝,瑞毒霉等化学药剂进行防治,但有的防治效果并不理想。去年,我们在黄瓜保护地栽培中,除了做好品种选择,改善温、
Cucumber downy mildew cucumber production is a harming a disease, whether it is greenhouse, greenhouse, or open-field cultivation can occur. In recent years, cucumber acreage has grown rapidly in our country and the prevention and cure of downy mildew has also become a prominent issue. From the beginning of April every year, the production of greenhouse in winter has taken place. In practice, we have used dexmedetomidine, cefotaxime, rubenazole mold and other chemical control, but some control effect is not ideal. Last year, we cucumber protected cultivation, in addition to good variety selection, improve the temperature,