Grape leaf skeletonizer: Two parasites of the western skeletonizer colonized in successful search for natural enemies of pest

Smith, O

Grape leaf skeletonizer: Two parasites of the western skeletonizer colonized in successful search for natural enemies of pest

Author

Owen J. Smith

Author Affiliations

Owen J. Smith is Assistant Entomologist in Biological Control, University of California, Riverside.

Publication Information

Hilgardia 7(5):9-9. DOI:10.3733/ca.v007n05p9. May 1953.

PDF of full article, Cite this article

Abstract

A small gregarious wasp—Apanteles, sp. “A”—and a tachinid fly—Sturmia harrisinae Coq.—which are natural enemies of the western grape leaf skeletonizer—Harrisina brillians B. & McD.— are firmly established in San Diego County.

Also in this issue:

Cotton-potato farms: Costs, returns, and relationships to scale of operation in Kern County

Mechanized cotton growing: Effects of mechanization on yield and quality studied in tests on planting, thinning, flaming and harvesting

Cotton fertilizers: Kind and amount needed for best production studied in field tests

Spider mite on cotton: Under leaf coverage obtained with low volume, low pressure sprayers

Pest control by seed treatment: Wireworms and seed-corn maggots can be controlled by treating seed with lindane prior to planting

Thinning tokay grapes: Results of a study on the relationship of thinning practices to lugs shipped, total yield and net income

Landscaping for summer shade: Good planning uses cooling influence of plants to reduce summer temperatures in living areas

Cracked stem of celery: Boric acid sprays reduced incidence of disorder in field trials with nitrogen and potash fertilization

Pre-packaged and bulk spinach: Survey of Berkeley housewives reveals buying practices and opinions on price and quality of spinach at retail

Studies in pigeon nutrition: Addition of vitamin supplements to commercial pigeon ration investigated for effect on squab production

Sugar beet by-product tested: Alternate for molasses palatable to cows when mixed with concentrates and does not affect milk quality

Plant buffer systems in relation to the absorption of bases by plants