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Scientia Silvae Sinicae ›› 1999, Vol. 35 ›› Issue (zk): 151-155.

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STUDIES ON PREDICTION OF INSECT PESTS AND THEIR NATURAL ENEMIES ON ARTIFICIAL NURSERY OF PINUS MASSONIANA

Jinnian Zhao1,Guoqing Jin1,Wenchen Rong1,Guofeng Qin1,Xingchun Hong2,Xiegou Wang3   

  1. 1. The Research Institute of Subtropical Forestry, CAF Fuyang 311400
    2. The Experimental Centre of Subtropical Forestry, CAF Fenyi 336600
    3. Fuxi Forest Farm of Chuan County Fuxi311700
  • Online:1999-01-01 Published:1999-09-25

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Abstract:

There are 16 and 8 species of insect pests and their nature enemies of 1~5 year old plantation of Pinus massoniana. The rates of the trees damaged and the main shoots damaged by Dioryctria rubella Hampson reached 12.0% and 7.2% respectively in 5 year old plantation of Pinus massoniana. The height growth of the current year damaged main shoot was 0.1m shorter than that of the healthy main shoot. The damage rate of height growth reached 14.7%. Dioryctria sp. bored the trunk,caused the pine tree die,the tree damaged rate reached 3.2%. This paper also represents parasitic habits of two important natural enemies of insects,Macrocentrus watanabei van.Achterberg and Apanteles sp.

Key words: Plantation of Pinus massoniana, Species of insect pests, Species of natural enemies, Dioryctria rubella Hampson, Dioryctria sp.