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利用幼虫粪粒数推算高大树上虫口密度(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
1986年04期
Page:
83-90
Column:
研究论文
publishdate:
1900-01-01

Article Info:/Info

Title:
DETERMINING INSECT DENSITY IN HIGH AND BIG TREES BY FECES AMOUNT OF PINE CATERPILLAR
Article ID:
1000-2006(1986)04-0083-08
Author(s):
Xue Xianqing Yuan aojin Mao hongxinLian qiaoxia & Liu jiang (Nanjing Forestry University)Zhang Kezheng Li Chengxiang & Wang Youyu
Lishui Forestry Farm, Jiangsu Province
Keywords:
Pine caterpillar Feces amount Insect density
Classification number :
-
DOI:
10.3969/j.jssn.1000-2006.1986.04.011
Document Code:
A
Abstract:
In a systematic study on the Lishui Forestry Farm, Jiangsu province from 1983 to 1986, it was found that feces amount of pine caterpillar (Dendrolimus punctalus Walker) varied regularly with different ages of different generations and that feces amount of pine caterpillar could easiely and reliably be used to accurately determine insect density in high and big trees which are difficult to investigate.

References

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Last Update: 1900-01-01