Behavior of Trichogramma in Field Liberations

Author: SCHREAD, J. C.

Source: Journal of Economic Entomology, Volume 25, Number 2, April 1932 , pp. 370-374(5)

Publisher: Entomological Society of America

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Abstract:

Trichogramma (T. minutum) liberated in a block of 121 trees without parasites dispersed in all directions and resulted in 50 per cent parasitism. One other orchard with low parasitism increased 53 per cent after a single liberation. A third orchard having high natural parasitism was not increased by large liberations. The parasite flew 24 feet under laboratory conditions.

Document Type: Research Article

Publication date: April 1, 1932

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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