Field Populations of the Russian Wheat Aphid (Homoptera: Aphididae) and Other Cereal Aphids on Cool-Season Perennial Grass Accessions
Authors: CLEMENT, STEPHEN L.; JOHNSON, RICHARD C.; PIKE, KEITH S.
Source: Journal of Economic Entomology, Volume 83, Number 3, June 1990 , pp. 846-849(4)
Publisher: Entomological Society of America
Abstract:Six species of cereal aphids infested field plots of perennial grass accessions of Festuca arundinacea Schreb. (tall fescue), Agropyron desertorum (Fisch. ex Link) Schultes (standard crested wheatgrass), and Dactylis glomerata L. (orchard grass) at Pullman and Central Ferry, Wash., in summer 1988. Seed of cool-season perennial grass accessions from the United States germplasm collection is routinely increased at Pullman and Central Ferry, Wash. Russian wheat aphid, Diuraphis noxia (Mordvilko) (Homoptera: Aphididae), assumed dominant status at Central Ferry and English grain aphid, MacTosiphum avenae (F.), was dominant at Pullman. Other species found were Metopolophium dirhodum (Walker), greenbug, Schizaphis graminum (Rondani), bird cherry-oat aphid,Rhopalosiphum padi (L.), and Sipha elegans del Guercio. Overall, aphid densities were highest in non irrigated plots at Pullman (x aphids/five tillers = 191.87), intermediate in irrigated plots at Central Ferry (x = 47.86), and lowest in non irrigated plots at Central Ferry (x = 15.70). At Central Ferry, significantly fewer (P 0.05) aphids were recovered from F. arundinacea, than from A. deseTtoTum and D. glomerata; however, aphid densities were higher on F. arundinacea at Pullman. Results indicate that cereal aphids pose a potential hazard to seed regeneration and should be monitored to ensure against loss of grass germ plasm. Also, results show that some commonly occurring Pacific Northwest perennial grasses have the potential to support natural populations of the Russian wheat aphid.
Document Type: Research Article
Publication date: 1990-06-01
- 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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