Effects of Two Planting Dates and Three Tillage Systems on the Abundance of Lesser Cornstalk Borer (Lepidoptera: Pyralidae), Other Selected Insects, and Yield in Peanut Fields
Authors: MACK, T. P.; BACKMAN, C. B.
Source: Journal of Economic Entomology, Volume 83, Number 3, June 1990 , pp. 1034-1041(8)
Publisher: Entomological Society of America
Abstract:The effect of planting date and tillage system on the abundance of several insects in 'Florunner' peanuts (Arachis hypogaea L.) was examined in a 2-yr replicated field experiment. Two planting dates (late May and mid-June) and three tillage systems (conventional, reduced, and burned stubble) were evaluated. The abundance of the lesser cornstalk borer, Elasmopalpus lignosellus (Zeller), elaterids, carabids, and labidurids was monitored weekly with pitfall traps. Counts of lesser cornstalk borer, labidurid, carabid, and elaterid varied with year. Counts of lesser cornstalk borers and carabids were significantly greater in 1986 than in 1987, whereas counts of elaterids and labidurids were greater in 1987. Approximately 1.9 times more lesser cornstalk borers were captured in traps from lateplanted peanuts in both years. Labidurid abundance was unaffected by planting date. Carabids were more abundant in late-planted peanuts in 1987, but planting date did not affect abundance in 1986 or when data from both years were combined. Tillage system did not affect the abundance of any of the insects monitored in either year. These experiments indicate that planting early should effectively decrease lesser cornstalk borer abundance in conventionally tilled and reduced-tillage peanuts.
Document Type: Research Article
Publication date: June 1, 1990
- 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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