Xu Zhenghui, Xu Zhiqiang, Wu Yi. A BIOLOGICAL OBSERVATION ON NEODIPRION HUIZEENSIS[J]. Journal of Southwest Forestry University, 1990, 10(2): 203-209. DOI: 10.11929/j.issn.2095-1914.1990.02.012
Citation: Xu Zhenghui, Xu Zhiqiang, Wu Yi. A BIOLOGICAL OBSERVATION ON NEODIPRION HUIZEENSIS[J]. Journal of Southwest Forestry University, 1990, 10(2): 203-209. DOI: 10.11929/j.issn.2095-1914.1990.02.012
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A BIOLOGICAL OBSERVATION ON NEODIPRION HUIZEENSIS

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  • The conifer sawfly Neodiprion huizeensis Xiao et Zhou is an important pest feeding on Pinus armandi.It has 2 generations a year in Huize County,Yunnan Province,and overwinters as prepupae under duff and litter or in loose soil.Larvae are gregarious,having 6 instars.The white-teeth shrew Crocidura dracula Thomas is an effective cocoon predator preying on the overwintering prepupae reaching a predation rate of 50%-90%.Protecting natural enemies,using pesticide properly and cutting off twigs bearing the aggregated larvae are feasible prevention and control measures.
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