摘要
落叶松叶蜂Ｐｒｉｓｔｉｐｈｏｒａｅｒｉｃｈｓｏｎｉ（Ｈａｒｔｉｇｉ）在黑龙江省鸡西地区１年１代。８月中旬以茧内老熟幼虫在枯枝落叶层３～５ｃｍ表土层下越冬。翌年６月初开始化蛹，７月中旬为盛期，８月上旬结束。６月中旬成虫开始羽化，７月中旬为盛期，８月中旬结束。成虫于６月下旬产卵，７月中旬为盛期，８月中旬结束，卵期平均６ｄ。卵于７月上旬开始孵化，７月下旬为盛期。幼虫共５龄，雌雄比２０∶１，该虫６％的个体有滞育现象。寄生性天敌昆虫有７种，虫生真菌１种，捕食性蚂蚁２种。
The life cycling and biological characteristics of Pristiphora erichsonii (Hartigi) were observed in this study. This pest has one generation a year in Jixi region, Heilongjiang. The old instar larvae with cocoon start overwintering under litter(3-5 cm in depth) from the second ten days of August. Pupating starts in June of next year, with a peak in the second days of July, and ends in the first ten days of August. The emergence starts in the second ten days of June, with a peak in the second days of July, and ends in the second ten days of August. Adults begin to oviposit from the last ten days of June, with a peak in the second ten days of July, and stop laying egg from middle of August. The egg's period last about 6 days and begin to hatch in the first ten days, with a hatching peak in the last ten days of July. Larva has five instar. The female and male is in a ratio of 20∶1. 6% individuals of P. erichsonii have a phenomenon of delaying development. The investigation on natural enemy of this pest was also made. Eight species of parasitoids, 1 species of fungus and 2 species of predator ant were found in this area.
出处
《东北林业大学学报》
CAS
CSCD
北大核心
1996年第4期31-36,共6页
Journal of Northeast Forestry University
基金
黑龙江省"八五"攻关课题
关键词
落叶松叶蜂
生物学特性
天敌
Pristiphora erichsonii
Biological characteristics
Natural enemy
