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近几年,在保护地蔬菜病虫害防治中,粉尘剂以省工、省时、效果好的优势,得以广泛应用。5%脂铜粉尘剂是新研制的防治细菌性病害的粉尘药剂。为明确其对黄瓜细菌性角斑病的防治效果及适宜用量,于2000年在大棚内进行了药效试验。一、材料与方法 (一)试验材料 5%脂铜粉尘剂(中国农科院植保所研制),72%硫酸农用链霉素。 (二)试验方法试验在曲阜市小雪镇大棚内黄瓜上进行,品种为新泰密刺,正值结瓜期。试验用5%脂铜粉尘剂每666.7m~2(亩)用0.8kg、1.0kg、1.2kg喷粉,72%农用硫酸链霉素4 000倍液喷雾和空白对照5个
In recent years, in the prevention and control of pests and diseases of vegetables in the protected areas, dusting agents are widely used in the fields of labor saving, time saving and good effect. 5% fat bronze dust agent is a newly developed dust prevention and treatment of bacterial diseases agent. In order to clarify its prevention and treatment of bacterial angular leaf disease Cucumber and the appropriate amount of control, in 2000 in a greenhouse effect test. First, the material and methods (a) test material 5% fat brass copper dust (developed by the Chinese Academy of Agricultural Sciences Institute of Plant Protection), 72% of agricultural streptomycin sulfate. (B) test methods Test in Qufu City, a small snow-covered cucumbers on the greenhouse, the variety is Xintai sting, coincided with the fruiting period. Test with 5% copper powder dust per 666.7m ~ 2 (mu) with 0.8kg, 1.0kg, 1.2kg dusting, 72% agricultural streptomycin streptomycin 4000 times spray and blank control 5