Patasson luna in Overwintering Eggs of the Alfalfa Weevil1

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Abstract:

Patasson luna (Girault), (Hymenoptera: Mymaridae) was reared from overwintering eggs of the alfalfa weevil, Hypera postica (Gyllenhal), collected in New Jersey, Pennsylvania. and Maryland. The distribution of P. luna in those areas was spotty and nowhere was the parasite abundant. Data taken monthly from a field in northern New Jersey showed that P. luna can survive the winter in overwintering eggs of the alfalfa weevil, but the host eggs may suffer considerable mortality.

A large fraction of the alfalfa weevil eggs is inaccessible to P. luna because they are scaled in the stems, a fact which places a limit on the value of this parasite as a biological control agent. In addition, the parasite finds and attacks only a relatively small percentage of the accessible eggs. Its value, therefore, appears to be negligible.

Document Type: Research Article

Publication date: April 1, 1966

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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