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Since its initial California find in San Jose in March 1951, the smaller European elm bark beetle, Scolytus multistriatus (Marsham), has spread rapidly to most of the elm-growing areas of this State. Owing to the many drought-weakened elm trees, it has become a particularly serious pest in southern California on both native and imported elms. To be able to suggest to spray-operators appropriate times to spray for the beetles, it was essential to learn something of its development under southern California conditions. It was reasoned that the number of generations of beetles might be more here, and consequently spraying dates might vary considerably, as our winters are mild and the growing season longer, compared with the Northeastern United States, where this well-known insect has been studied thoroughly.
Document Type: Research Article
Publication date: February 1, 1965
More about this publication?
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.