河曲丝叶蜂在庆阳生物学特性观察研究

摘要

Serious insect pests disaster ofNematus hequensis occurred in Qingchen between 2009 and 2014. To carry out the reasonable prevention and control work, the authors observed the biological characteristics ofNematus hequensis in Qingyang county, and determined the optimal control time based on the control experiments. The result showed thatNematus hequensis have some characteristics such as high reproduction rate, severe strong and large impact area. The optimal control time is the late of hatched larvae (September 26 solstice on October 5).%甘肃省庆阳市庆城县2009~2014年发生了严重的柳树河曲丝叶蜂虫害灾情。为经济有效、合理准时的开展防治工作，作者观察研究了河曲丝叶蜂在庆城县的生物学特性，并开展了药剂防治最佳时期的研究工作。结果表明：河曲丝叶蜂具有繁殖率高，爆发成灾性强等特性；药剂防治的最佳时期是卵孵化幼虫的盛末期（每年9月26日至10月5日）。