A Preliminary Report on Control of the Western Twelve-Spotted Cucumber Beetle in Orchards
Authors: MICHELBACHER, A. E.; MACLEOD, G. F.; SMITH, RAY F.
Source: Journal of Economic Entomology, Volume 34, Number 5, October 1941 , pp. 709-716(8)
Publisher: Entomological Society of America
Abstract:For a number of years the western twelve-spotted cucumber beetle, Diabrotica 11-punetata (Man.), has been known to be a serious pest of deciduous fruits in several localities in California. Not only has much damage been done due to direct feeding, but large losses have resulted through the spreading of brown rot. In the Brentwood area of California the losses were so great in 1938 that the farmers in that region asked that the problem be investigated. Work was started late in the harvest season and, although of a limited nature, information was obtained which indicated that it should be possible to control the insect with certain contact insecticides applied as dusts. In 1939 a serious infestation of the pest failed to develop and for that reason it was impossible to carry on any extensive control experiments. However, population trends were followed and observations were made on the reaction of the beetles to dusting in relation to weather conditions. Large populations were encountered in 1940 and this report deals principally with the results of that season's work.
Document Type: Research Article
Publication date: October 1, 1941
- Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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