Effects of Light, Temperature, and Relative Humidity on the Diel Behavior of the Alfalfa Weevil, Hypera postica1

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Observations made in 1958 showed that adults of the alfalfa weevil, Hypera postica(Gyll.), were more active during the night than during the day. In 1959, replicated sweep samples were taken at regular intervals over 24-hour periods and periods in early morning, to study the effect of light, temperature, and relative humidity on the diel behaviour of the adult weevils.

The results strongly suggested that the die! behavior of the adults was related to light intensity, whereas larvae showed no response to either light, temperature, or relative humidity over the 24-hour period.

Document Type: Research Article

Publication date: August 1, 1960

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  • 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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