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格式: 圖書
語言:英语
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era
format Book
genre
geographic
id 8a9f3634-aa8d-49a0-bdf9-8a7086ca9e22
isbn
issn
language eng
physical 9 pages :illustrations ;27 cm
publication – publisher: Pacific Northwest Forest and Range Experiment Station US Dept of Agriculture Forest Service
  dateOfPublication: 1978
publishDate 1978
subjects
title Detecting suboutbreak populations of the Douglas-fir tussock moth by sequential sampling of early larvae in the lower tree crown / Richard R. Mason.
topic Douglas fir tussock moth.
Orgyia pseudotsugata.
Sampling.
Larvae.
Pseudotsuga menziesii.
Abies.
Population.
Density.
Chenille à houppes du Douglas.
Douglas fir tussock moth
Oregon