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›› 1992, Vol. 28 ›› Issue (4): 317-322.

• 论文及研究报告 • 上一篇    下一篇

落叶松叶蜂生物学特性及防治方法的研究

李惠成 王建中 郭飞   

  1. 内蒙古乌兰察布盟森林病虫害防治站
  • 收稿日期:1990-12-25 修回日期:1900-01-01 出版日期:1992-07-25 发布日期:1992-07-25

STUDIES ON THE LARCH SAWFLY PRISTIPHORA ERICHSONII(HYMENOPTERA TENTHREDINIDAE)I. BIOCECOIOGY AND CONTROL OF THE LARCH SAWFLY

Li Huicheng,Wang Jianzhong,Guo Fei   

  1. Forest Insects and Diseases Control Station, Ulanqab League Mongol Autonomous Region
  • Received:1990-12-25 Revised:1900-01-01 Online:1992-07-25 Published:1992-07-25

摘要: 落叶松叶蜂是危害华北落叶松的重要害虫,在内蒙古乌兰察布盟地区一年发生一代,以预蛹在茧内越冬。林分郁闭度在0.6以上时,用烟雾剂0.75kg/mu防治2—3龄幼虫,效果达70.1—83.2%;25%灭幼脲Ⅲ号20—30g/mu低容量喷雾防治2—3龄幼虫,效果81.1—95.5%;人工搂树盘暴露越冬预蛹,效果95.9%。

关键词: 广腰亚目, 叶蜂科, 丝叶蜂亚科, 叶蜂, 落叶松叶蜂

Abstract: The larch sawfly Pristiphora erichsonii(Htg) is an impartant pest in North China larch(Larix principis rupprechtii Mayr). It has one generation a year in Ulanqab League, Inner Mongolia Autonomous Region and overwinters as prepupa in the soil or under the litter. When the canopy density of the larch stand is above 0.6, the use of aerosol at the rate of 0. 75kg/mu to control the larvae of 2—3 instars reached 70.1—83.2% mortality. The use of 25% Diflubenzuron Ⅲ at 20—30 g/mu by low volume spray in controlling 2—3 instars larvae reached 81.1—95.5% mortality. Digging the soil around the base of the tree in order to expose the overwintering prepupae reached 95.9% mortality.

Key words: Symphyta, Tenthredinidae, Nematinae, Sawfly, The larch sawfly Pristiphora erichsonii