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在我国北方,大棚黄瓜霜霉病仍然是一个半毁灭性病害,药剂防治是重要手段之一。1979年,我们肯定了百菌清喷雾的防治效果超过以往使用过的任何药剂,1980年推广4,000多亩,深受群众欢迎。但是,在高温条件下喷药时间过长,容易使皮肤和粘膜红肿起来,而且喷布药剂是个很费事的农活。为防止药剂对人的直接毒害和节省工本,试验了百菌清烟剂的防治效果和使用技术,结果很好。
In northern China, greenhouse cucumber downy mildew is still a semi-destructive disease, chemical control is one of the important means. In 1979, we affirmed that the effect of chlorothalonil spray was better than any other drugs used in the past and that more than 4,000 mu were popularized in 1980, which is well received by the public. However, when the spraying time is too long under high temperature conditions, the skin and mucous membranes tend to be swollen and the spraying of medicines is a troublesome task. In order to prevent the direct poisoning of medicaments to human and to save the cost, we tested the control effect and the using technique of chlorothalbile zero smoke agent and the results were very good.