Pheromone Studies of the Two spotted Spider Mite.1 2. Behavioral Response of Males to Quiescent Deutonymphs2

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Adult male Telranychus urticae Koch were attracted to quiescent female deutonymphs with the onset of quiescence. The consistency of male attraction varied from 40-85% during the early part of the period and gradually increased to 80-100% prior to adult emergence. Average duration of the quiescent period was 40.4 hours at 24 and 23.4 hours at 30. Occasional males were found that did not respond consistently to quiescent deutonymphs. The cause was not determined. Male attraction was greater at 30 and 20-30% relative humidity than at 30 and 90-95% relative humidity. Trials at 24 and 20-30% relative humidity were intermediate. It was concluded that tests for bioassay of T. urlicae female sex pheromone could be conducted at 30 and 20-30% relative humidity but should include sufficient replications to measure erratic male behavior.

Document Type: Research Article

Publication date: April 1, 1971

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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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