Biological control of insects: California's subtropical climate favors establishment of natural enemies of agricultural insect pests
Author
C. P. ClausenAuthor Affiliations
C. P. Clausen is Chairman of the Department of Biological Control, University of Calilornia College of Agriculture, Riverside.Publication Information
Hilgardia 6(11):10-10. DOI:10.3733/ca.v006n11p10. November 1952.
PDF of full article, Cite this article
Abstract
One third of the 100 or so insects introduced successfully into the continental United States for biological control, are established in California.
Clausen C. 1952. Biological control of insects: California's subtropical climate favors establishment of natural enemies of agricultural insect pests. Hilgardia 6(11):10-10. DOI:10.3733/ca.v006n11p10
Also in this issue:
State's productive capacity: Changes in supplies of feed grains, hay, and pasturage projected for 1955 on basis of trendsLygus bugs on seed alfalfa: Specific treatments recommended for lygus bug control in alfalfa seed fields at three stages of plant growth
Exocortis disease of citrus: Top-root relationships of trifoliate orange and its hybrids studied in search for cause of root disease
Washington navel fruit drop: Effects of 2,4-D on drop of sound and unsound oranges when sprays were applied in the late fall and winter
Phosphatic fertilizers on valencias: Field response in phosphorus-deficient orchard reveals improvements in foliage growth and color, and in fruit quality
Efficiency in fruit marketing: In-plant transportation equipment for fresh fruit packing houses compared for seasonal cost and efficiency
Dairy products in food expense: Surveys made in Oakland and in Los Angeles indicate share of dairy products in the family food expense
Body size and metabolism