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Scientia Silvae Sinicae ›› 2003, Vol. 39 ›› Issue (1): 91-97.doi: 10.11707/j.1001-7488.20030115

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STUDY ON THE BIOLOGICAL CHARACTERISTICS OF INVOLVULUS HARADAI (COLEOPTERA:ATTELABIDAE)

Zhang Jinwen,Chen Junjin,Wu Qingquan,Huang Jinshui   

  1. Tianma National Forest Farm of Fujian Province Pinghe 363704;Fujian Academy of Forestry Fuzhou 350012
  • Received:2002-06-19 Revised:1900-01-01 Online:2003-01-25 Published:2003-01-25

Abstract:

Involvulus haradai (Kono) is a new recorded species of the family Attelabidae, Coleoptera, in China injuring trees of Canarium album and Rhus chinensis. The adult damages the tender tops and sucks the fruit juice of C. album decreasing the tree momentum growth, fruit quality and yield. The yield loss of 5-year-old C. album may reach to 45%. The pest has 2 generations per year in Pinghe, Fujian Province. The larvae damages tree tips inside and lead them withered. When full grown the larva builds a cell in the soil at a depth of 1~7cm and over winter there. The adults emerge in the end of April next year.C. album damages more seriously at lower part of the hillside. Within the tree's seasonal growing period, the late spring and summer shoots are damaged more serious than the autumn ones.

Key words: Involvulus haradai, Morphological characters, Bionomics, Canarium album