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Citation:

Preliminary Report of Biological Characteristics of Dasychira dudgeoni

  • Received Date: 2011-11-11
  • Dasychira dudgeoni is one of the main insect pests on Camellia oleifera in southern China. So far, there are no reports on the biocharacteristics of this insect. In this study, the biological characteristics of D. dudgeoni were investigated by field survey and laboratory observation. D. dudgeoni has 2—3 generations each year, and overwinters as eggs in Zhejiang Province. The eggs hatch during late February and early March. The first to third instar larva feed on the lower surface of leaves or the pericarp of the fruit. Later they feed mainly on leaves. The mature 5th instar larva move to lower leaves and combine two complete leaves by spinning silk into a ridge shaped cocoon then pupate inside. The female adults stay on the surface of the cocoon waiting for the male adult to mate. And the next day, the females lay eggs on the cocoon, then fly to the lower surface of leaves to oviposit.
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    [7] 华正媛, 王井田, 刘 剑, 等. 衢州市油茶害虫及天敌种类调查[J]. 浙江农林大学学报, 2012, 29(2): 232-243

    [8] 杨大荣,刘桂华,陈朝进,等. 云南茶叶茸毒蛾的生物学特性与综合防治[J]. 云南农业大学学报,1998,13(4): 364-368

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Preliminary Report of Biological Characteristics of Dasychira dudgeoni

  • 1. Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang 311400, Zhejiang, China
  • 2. Quzhou Forest Pest Management and Quarantine Station of Zhejiang Province, Quzhou 324000, Zhejiang, China

Abstract: Dasychira dudgeoni is one of the main insect pests on Camellia oleifera in southern China. So far, there are no reports on the biocharacteristics of this insect. In this study, the biological characteristics of D. dudgeoni were investigated by field survey and laboratory observation. D. dudgeoni has 2—3 generations each year, and overwinters as eggs in Zhejiang Province. The eggs hatch during late February and early March. The first to third instar larva feed on the lower surface of leaves or the pericarp of the fruit. Later they feed mainly on leaves. The mature 5th instar larva move to lower leaves and combine two complete leaves by spinning silk into a ridge shaped cocoon then pupate inside. The female adults stay on the surface of the cocoon waiting for the male adult to mate. And the next day, the females lay eggs on the cocoon, then fly to the lower surface of leaves to oviposit.

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