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Journal of Fujian Forestry Science and Technology. 2010, (01)

A Study on the Action Threshold for Controlling Orgyia antiqueChinese Full Text

YANG Fan(Department of Grassland Science,Agriculture and Animal Husbandry College of Qinghai University,Xining 810003,Qinghai,China)

Abstract: The study of the feeding amount and action threshold of Orgyia antique was made by the means of feeding in door and covering in field.The losing rate tests showed that: the Orgyia antique’s population density is correlated significantly with the wet mass of the Nitraria tangutorum vegetation,with increasing of the Orgyia antique’s density,the yield is reduced obviously.The controlindex of Orgyia antique was 12.78 larva/m2,and its Economic Injury Levels（EIL） was 4.33%. 
Keywords：

Orgyia antique; Nitraria tangutorum; feeding amount; action threshold;

  • Series：

    (D) Agriculture

  • Subject：

    Plant Protection; Forestry

  • Classification Code：

    S763

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