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Biology and Control of the Western Pine Beetle

其他書名	A Summary of the First Fifty Years of Research
出版	U.S. Department of Agriculture, 1960
URL	http://books.google.com.hk/books?id=_HkWAAAAYAAJ&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN

註釋This publication reviews the results of research on the western pine beetle up to July 1, 1952. It shows the progress that has been made in over a half-century of study of this one bark beetle. It also records the trials and errors--the research that ran into blind alleys. The record of this pioneer effort in the field of forest entomology in the United States should be of great help to research workers who are faced with similar problems.