通过对铜绿丽金龟在承德春播紫苏区的发生情况调查,明确了铜绿丽金龟发生期为8月2—21日;盛发期为8月4—18日,8月11日虫口数量达最高峰;8月2—12日,铜绿丽金龟为害的紫苏单株叶片率呈上升趋势。该时期为害特点是在叶片上造成圆点状孔洞;8月13日以后,为害叶片数量已接近最大值,但为害程度逐步加重,8月21日单株叶片为害率达99%。铜绿丽金龟的发生与温、湿度及寄主植物的分布有关。高温、高湿的气候条件和丰富的寄主植物有利于铜绿丽金龟的发生和为害。 Based on the investigation of the occurrence of Perilla frutescens in Chengde spring, the occurrence period of Perilla frutescens in Chinglish was identified as August 21-21, August 4-18 and August 11 as the peak, From August 2 to 12, the leaf rate per plant of Perilla frutescens (Cucumis sativa L.) was on the rise. During this period, the damage was caused by dot-shaped holes on the leaves. After August 13, the number of damaged leaves was close to the maximum, but the degree of damage gradually increased. On August 21, the damage rate per leaf was 99%. Copper beetle occurs with temperature, humidity and the distribution of host plants. High temperature, high humidity and climatic conditions and rich host plants are conducive to the occurrence and damage Cucumber beetle.