Effects of Application Methods, Timing, and Rates of Insecticides and Nematicides on Yield and Control of Wireworms (Coleoptera: Elateridae) and Nematodes (Tylenchida: Heteroderidae) that Affect Sweet Potato
Authors: CHALFANT, R. B.; HALL, M. R.; JOHNSON, A.W.; SEAL, D.R.; BONDARI, K.
Source: Journal of Economic Entomology, Volume 85, Number 3, June 1992 , pp. 878-887(10)
Publisher: Entomological Society of America
Abstract:Soil insecticides, insecticide application procedures, and nematicides were evaluated from 1986 to 1989 in field plots of 'Jewel' sweet potatoes, Ipomoea batatas L., to control wireworms, (Conoderus spp. Coleoptera: Elateridae), and the rootknot: nematode, Meloidogne incognita (Kofoid& White) Chitwood. Experimental application procedures for insecticides were preplant broadcast and incorporate, postplant band and incorporate, and broadcast at root enlargement. The least injury to the harvested sweet potatoes by wireworms and nematodes occurred in plots treated with the nematicide 1,3-0 and with the insecticide chlorpyrifos applied as a postplant band a subsequent application of diazinon broadcast at root enlargement. Sweet potatoes in plots that received no nematicide or the nematicides aldicarb or fenamiphos had more wireworm and nematode infestation than plots injected with 1,3-0. Chlorpyrifos applied as a postplant band gave better wireworm control than chlorpyrifos applied preplant and incorporated.
Document Type: Research Article
Publication date: June 1, 1992
- 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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