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鲷绿金龟子(Anomala corpulenta Motsch.)在河南的郑州、灵宝、博爱、开封、仪封、许昌、新郑等地均有发生,危害幼龄果树和林木极为严重。成虫特别喜食苹果、沙果、花红、海棠及杨、柳等幼树嫩叶,每当成虫盛发时期,常将叶片吃光,对果木生长及水果产量的影响很大。 为了探讨防治途径,近几年来,我们就成虫发生特点与防治进行了研究。 一、成虫发生时期与降雨量的关系 据郑州地区的观察,铜绿金龟子每年发生1代,幼虫过冬,来年4月底、5月初化蛹羽化。成虫出现期与盛发期,和当年4、5、6月份的降雨量有关,特别是5、6月份的降雨量最为密切。据郑州诱虫灯下成虫出现期和数量的统计结果表明:1961年5月份降雨量为39.2毫米,6月份为91.4毫米,成虫于5月上旬开始出现,盛发期在6月上、中旬,末期延到8月下旬。1962年5月份降雨量仅12毫米,6月份69.5毫米,成虫于6月上
Anomala corpulenta Motsch. Occurs in Zhengzhou, Lingbao, Frangipani, Kaifeng, Yifeng, Xuchang, Xinzheng and other places in Henan Province. It is extremely harmful to young fruit trees and trees. In particular, adults eat apples, sago, bonuses, begonias and young leaves, young leaves and other young trees, whenever the adult flourishing period, often leaves eaten, fruit growth and fruit yield a great influence. In order to explore ways to prevent and control, in recent years, we have studied the characteristics and prevention and treatment of adults. First, the incidence of adult period and the relationship between rainfall According to the observation of Zhengzhou, Chaetomium a generation occurs each year, the larvae through the winter, the end of April next year, early May pupation eclosion. The occurrence period of adults is related to the rainfall in April, May and June of that year, especially the rainfall in May and June. According to the statistics of the occurrence and quantity of adults under the trap light in Zhengzhou, the rainfall in May 1961 was 39.2 mm and in June was 91.4 mm. The adults began to emerge in early May and the peak was in mid-June and mid- The late extension to late August. May 1962 May rainfall of only 12 mm, 69.5 mm in June, adults in June on