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Scientia Silvae Sinicae ›› 1999, Vol. 35 ›› Issue (5): 68-71.

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STUDY ON THE SAWFLY MEGABLESES CRASSITARSIS(HYMENOPTERA: TENTHREDINIDAE, ALLANTINAE)

Yuzhou Ding1,Huaishu Zheng2   

  1. 1. Anhui Agricultural University Hefei 230036
    2. Forestry Bureau of Huoshan County Huoshan 237200
  • Received:1998-12-04 Online:1999-09-25 Published:1999-09-25

Abstract:

The swafly, Megabeleses crassitiarsis Takeuchi, is a newly recorded insectpest in China.It occurred in Dabieshan Mountains, east China.Its host plants are yula magnolia, Magnolia denudata Desr.and lily magnolia, Magnolia liliflora Desr..It has one generation per year and overwinters as prepupa in cocoon in the topsoil.The larvae occur from early May to mid-May; the trees were seriously damaged in this period.The incidence of this pest is closely related to elevation, temperature and moisture.The larvae(before third instar) were >95 % controlled by 80% DDVp emulsion at 1500×dilation during mid-May in Huoshan County.

Key words: The yula swafly, Biology, Environment, Control