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Scientia Silvae Sinicae ›› 1995, Vol. 31 ›› Issue (1): 77-80.

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STUDIES ON CONTROL OF GALL FORMATION OF DRYOCOSMUS KURIPHILUS YASUMATSO

Xingrui Jin1,Shibo Tian1,Shu'e Zhao1,Hongxiang Sun2   

  1. 1. Plant Protection Institute of Hebei Academy of Agriculture and Forestry Sciences Baoding 071000
    2. Cangzhou Pesticide-Chemical Plant Cangzhou 061021
  • Received:1993-11-29 Online:1995-01-25 Published:1995-01-25

Abstract:

The injury process of the chestnut gall wasp, Dryocosmus kuriphilus Ya sumatso, an important insect pest of chestnut, and its control were investigated. It was found that killing of the first-instar larvae in the buds just before winter resulted in normal growth of the buds the following year and that once a year of high-dose spray of monocrotophos between the time of harvesting and leaf falling killed 75%-95% of the larvae and effectively reduced the injury.This method was safe to the natural enemies and the re sidue of insecticide was near zero.

Key words: Dryocosmus kuriphilus Yasumatso, Control, Gall formation, High permeability monocrotophos