樱桃树锤角叶蜂研究

Studies on New Pests of Cherry, Trichiosoma Bombferma Takeuchi and T. Anthracinum Forests

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。

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