A Record of Winter Kill of Western Pine Beetle in California, 1932

Author: Miller, John M.

Source: Journal of Forestry, Volume 31, Number 4, 1 April 1933 , pp. 443-446(4)

Publisher: Society of American Foresters

Buy & download fulltext article:

Price: $29.50 plus tax (Refund Policy)

Abstract:

The effect of climate upon the abundance of insect life in the forest is a factor in ecology that can rarely be measured by quantitative methods. In the following article, however, is a record of the sudden depletion of the bark beetle population over a large area in the Modoc National Forest due to low temperatures but a few degrees below those which normally occur in winter in that region. Following a cold spell in December, 1932, 65 per cent of the western pine beetle broods were found to be dead. This resulted in the closing down of a control project and will undoubtedly have a large either upon the future course of the bark beetle epidemic which has been developing in that region.

Document Type: Journal article

Affiliations: 1: U. S. Bureau of Entomology, Berkeley, Calif.

Publication date: 1933-04-01

More about this publication?