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Vertical Distribution of Douglas-Fir Tussock Moth (Lepidoptera: Lymantriidae) Eggs in Suboutbreak Conditions

 

作者: L. L. Sower,   G. E. Daterman,   M. J. Stelzer,   D. G. Nielsen,  

 

期刊: Environmental Entomology  （OUP Available online 1983）
卷期: Volume 12, issue 5  

页码: 1590-1591

 

ISSN:0046-225X

 

年代: 1983

 

DOI:10.1093/ee/12.5.1590

 

出版商: Oxford University Press

 

数据来源: OUP

 

摘要:

Douglas-fir tussock moth egg masses were found throughout the foliar portions of the crowns of 12-m Douglas-fir trees, but there was a trend to higher density in the upper crown. In 1-min visual surveys taken before trees were sampled in detail, 11% of the total egg masses present on the trees were observed.

 

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