Effects of Potato Leafhopper (Homoptera: Cicadellidae) and Weed Control on Alfalfa Yield and Quality
Authors: OLOUMI-SADEGHI, H.; ZAVALETA, L. R.; KAPUSTA, G.; LAMP, W. O.; ARMBRUST, E. J.
Source: Journal of Economic Entomology, Volume 82, Number 3, June 1989 , pp. 923-931(9)
Publisher: Entomological Society of America
Abstract:The effects of insect and weed control measures on abundance of potato leafhopper, Empoasca fabae (Harris), and alfalfa (Medicago sativa (L.))yield and quality were studied in Illinois from 1983 through 1985. Application of insecticides significantly reduced the abundance of adult and nymph potato leafhoppers (numbers per unit area) and the intensity (numbers per unit of alfalfa); subsequently, they increased alfalfa yield and leaf and forage protein content. Application of winter herbicides had no influence on potato leafhoppers but reduced alfalfa yields, suggesting possible herbicide damage to the alfalfa crop. On the other hand, application of summer herbicides to control grassy weeds was associated with an increase in adult abundance and subsequent decrease in alfalfa yields. Data strongly suggest the importance of potato leafhopper control rather than weed control in established alfalfa production. The presence of summer weeds (grasses) moderated the abundance of potato leafhopper and subsequently reduced damage to alfalfa.
Document Type: Research Article
Publication date: June 1, 1989
- 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.
- Editorial Board
- Submit a Paper
- Subscribe to this Title
- Information for Advertisers
- Visit this journal's homepage
- ingentaconnect is not responsible for the content or availability of external websites