樱桃树锤角叶蜂研究

熊毛锤角叶蜂和煤色锤角叶蜂是新发现的两种樱桃树害虫,其中前者为我国新记录种且为优势种。本文主要记述了优势种的发生危害、形态特征、生活习性及防治试验。熊毛锤角叶蜂1年1代,以蛹在寄主枝条上越冬,成虫在3月中旬至4月上旬羽化,4月中旬至6月上旬为幼虫为害期,幼虫期多于50d,6月上旬开始化蛹。根据试验结果,推荐下列防治方法:(1)人工摘茧;(2)胃毒剂或触杀剂喷雾;植物性杀虫剂苦皮藤和川楝素增效乳剂效果亦好。

Studies on New Pests of Cherry, Trichiosoma bombferma Takeuchi and T. anthracinum Forests

Trichiosoma bombferma Takeuchi and T. anthracinum Forsius are new pests of Prunus pseudecerasus and P. avium, anong them T. bombferma is a new record to China, and the predominant species. This paper mainly describes the occurence, damage, morphology, biology and control tests of the two pests. T. bombferma has one generation a year, oversummer and overwinter as pupae on twig and shoot of the host. The larva has 5 instars, lasting for about 50 days and injuring from mid Appril to early June. The pest pupates in early or mid June. The suggested control measures: (1) picking out cocoons by hand; (2) spraying 50% of Trichlorphon (1:1000), 50% Phoxim (1:500) or botanical insecticides Kupiteng of Chuanliansu0