A Study of Soil-Inhabiting Mites from Connecticut Apple Orchards1


Source: Journal of Economic Entomology, Volume 51, Number 6, December 1958 , pp. 767-772(6)

Publisher: Entomological Society of America

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The sod from five Connecticut apple orchards was sampled at 12 to 16-day intervals for a period ranging from 8 months to 1 Year, and the mite fauna in each orchard was analyzed. The orchards included an abandoned orchard, a lightly sprayed orchard, and three heavily sprayed orchards. In the first two orchards a relatively large number of predatory species occurred with no one species making up an excessively large portion of the total number of individuals. In the three heavily sprayed orchards the number of species was smelter, and the great majority of individuals belonged to only one or two species. Leioseius minusculus Berlese was very abundant in all three heavily sprayed orchards, although it was also present in the other two orchards sampled. Tetranycbidae were also most numerous in the heavily sprayed plots.

In one of them a pronounced rise in numbers of two species of Parasitoidea, Parasitus americanus Berlese and L. minusculus was observed following the application of mulch. It is believed that the increase of P. americanus was due to an increased supply of Collembolan and Acaridae.

Document Type: Research Article

Publication date: December 1, 1958

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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