Authors: Pesho, G. R.; Brauen, S. E.; Goss, R. L.

Source: Journal of Economic Entomology, Volume 74, Number 2, April 1981 , pp. 230-233(4)

Publisher: Entomological Society of America

Abstract:

The effects of larvae of Tipula paludosa Meigen on 20 irrigated and unirrigated forage grass cultivars and 21 irrigated turfgrass cultivars were evaluated from 1973 to 1975 by determining numbers of larvae in soil cores and examining associations between agronomic characters of the grasses and numbers of larvae. Only minimum infestations of larvae developed in unirrigated forage grasses. Differences in numbers of larvae between irrigated forage grass cultivars were numerically large but not statistically significant, but there were some instances in which an inverse association between hay yields and numbers of larvae was statistically significant. Associations between numbers of larvae and broadleaf weeds in irrigated forage grasses were numerically moderate but had questionable biological significance, and no associations were apparent between stands of weedy grasses or irrigated forage grasses and numbers of larvae. Differences in numbers of larvae between individual turfgrass cultivars were statistically significant but not sharply defined. However, comparisons of turfgrass types showed well-defined differences in numbers of larvae. The number of larvae in ryegrass plots was less by an average factor of 2.4 than numbers in fescue, blue, or bentgrass plots. Differences in larval population levels between irrigated and unirrigated forage and turfgrasses were attributed to differences in soil and atmospheric moisture conditions during the oviposition periods of the European crane fly.

Document Type: Research article

Publication date: 1981-04-01

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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