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黄瓜霜霉病是我县发生普遍、危害严重的常见性毁灭性病害。该病能使黄瓜产量显著下降,减产幅度为30％-50％。为大面积推广使用高效低毒低残留农药,1996年我们引进了美国氰胺公司的69％安克锰锌防治黄瓜霜霉病,取得了较好的防病增产效果。 一、材料与方法 （一）供试药剂;69％安克锰锌WP（美国氰胺公司生产）;72％克露WP（美国杜邦公司生产）;58％瑞毒零锰锋WP（瑞士汽巴嘉基公司生产）。 （二）供试作物:日本“常盘”黄瓜。 （三）试验方法:试验在本县绿华幸和公司蔬菜基地上进行。试验设5个处理:安克锰锌600倍,安克锰锌800倍,克露800倍,瑞毒霉锰锌800倍及清水对照。每个处理重复3次,随机排列,小区面积13.8m~2。5月23日喷第1次药,以后分别于5月29日、6月6日喷第2、
Cucumber downy mildew is a common occurrence in our county, a serious devastating common devastating disease. The disease can significantly reduce cucumber production, reduce the rate of 30% -50%. In order to popularize the use of high efficiency, low toxicity and low residue pesticides for a large area, in 1996, we introduced 69% of Amcylamine from USA Cyanamid to control cucumber downy mildew and achieved good effect of preventing and increasing yield. First, the materials and methods (A) for the test agent; 69% Anker Mn-Zn WP (American Cyanamid Company); 72% Kelu WP (DuPont); 58% Baji Ji company production). (B) for the test crop: Japan’s “usual plate” cucumber. (C) test methods: test in the county green and Fortunately, the company’s vegetable base. Test set up five treatments: Anker Mn-Zn 600 times, Anker Mn-Zn 800 times, 800 times grams exposed, Rui virus mildew 800 times and water control. Each treatment was repeated 3 times, randomly arranged, the plot area of 13.8m ~ 2. May 23 spray the first drug, respectively, after May 29, June 6, spray the first 2,