| 利用幼虫粪粒数推算高大树上虫口密度 |
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| 引用本文： | 薛贤清,严敖金,茅洪新,连巧霞,刘强,张克政,李成香,王友玉.利用幼虫粪粒数推算高大树上虫口密度[J].南京林业大学学报(自然科学版),1986,29(4):83. |
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| 作者姓名： | 薛贤清 严敖金 茅洪新 连巧霞 刘强 张克政 李成香 王友玉 |
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| 作者单位： | 南京林业大学;南京林业大学;南京林业大学;南京林业大学;南京林业大学;江苏溧水林场;江苏溧水林场;江苏溧水林场 |
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| 摘 要： | <正>马尾松毛虫幼虫的粪粒数量与大小,是随着世代的不同以及同一世代的不同龄期而有规律地变化。利用幼虫地面的落粪数量,来推算高大树上虫口密度,简便易行,准确可靠。
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| 关 键 词： | 马尾松毛虫 幼虫粪粒数 虫口密度 |
DETERMINING INSECT DENSITY IN HIGH AND BIG TREES BY FECES AMOUNT OF PINE CATERPILLAR |
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| 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. |
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| Keywords: | Pine caterpillar Feces amount Insect density |
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