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70％杀虫蝉可湿性粉剂具有高效、低毒的特点。为了掌握该药剂在茶区施用的适宜浓度与防治效果，浙江省缙云县农业局特产站于1998年春，在五云镇杜桥村茶园进行了药效试验，试验情况如下。1．材料与方法（1）供试药剂。70％杀虫蝉可湿性粉剂（贵州化工研究院研制）。（2）试验方
70% insecticidal cicada wettable powder with high efficiency, low toxicity characteristics. In order to grasp the appropriate concentration and control effect of the agent applied in the tea area, the specialty of Jinyun County Bureau of Agriculture of Zhejiang Province stood in the spring of 1998 and conducted the efficacy test in the tea plantation of Duqiao Village in Wuyun Town. The experimental conditions are as follows. 1. Materials and methods (1) test agents. 70% insecticidal cicadas WP (Guizhou Chemical Research Institute). (2) test side