Leafhoppers and Planthoppers in Coastal Bermudagrass: Effect on Yield and Quality and Control by Harvest Frequency
Authors: Hawkins, J. A.; Wilson, B. H.; Mondart, C. L.; Nelson, B. D.; Farlow, R. A.; Schilling, P. E.
Source: Journal of Economic Entomology, Volume 72, Number 1, February 1979 , pp. 101-104(4)
Publisher: Entomological Society of America
Abstract:Leafuopper-planthopper control with insecticides among 5 harvest regimes of Coastal bermudagrass resulted in a 17.9% avg increase in yield. Yield increases among harvesting treatments varied from 3.6% in grass that was harvested most often (simulated close grazing) to 49.3% in grass that was harvested least often (cut once yearly). Generally, as harvest frequency decreased, leafuopper-planthopper populations increased and yield losses attributable to these insects increased. Therefore, frequent harvest is an effective means of population suppression of these pests. Differences were not detected among several parameters measured for grass quality, except for cellulose and moisture content, both of which were significantly higher in grass from insecticide treated plots. The detrimental effect of the leafuopper-planthopper complex on Coastal bermudagrass is reflected primarily in yield reduction rather than in reduced grass quality.
Document Type: Research article
Publication date: 1979-02-01
- 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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