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The Life History of the California Red Scale Chrysomphalus Aurantii Maskell: Progress Report

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Abstract:

This progress report is restricted to three phases in a study of the life history of the California red scale. Daily observations on field-collected adults on green lemon fruits indicated an average productivity of from 85 to 90 crawlers per female. When plotted against mean temperatures: the duration of the first instar was least dependent upon temperature, the length of the third stage the most. Natural mortality following settling was greater in the last than in the first two instars, and during the winter approached 100 per cent.

Document Type: Research Article

Publication date: December 1, 1931

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.
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