Resistance of Kochia scoparia to Feeding Damage by Grasshoppers (Orthoptera: Acrididae)
Authors: OLFERT, O.; HINKS, C. F.; CRAIG, W.; WESTCOTTI, N. D.
Source: Journal of Economic Entomology, Volume 83, Number 6, December 1990 , pp. 2421-2426(6)
Publisher: Entomological Society of America
Abstract:The grasshopper complex associated with Kochta scoparla (L.) was investigated to verify and quantify the low acceptability of kochia to grasshoppers. Kochia did not show an economic level of insect damage. Grasshopper infestations at the sites were very severe (up to 351m2 placing the vegetation under intense grazing pressure. Feeding on kochia was mainly confined to older leaves; grasshoppers avoided new leaves. Protection of new leaves allows kochia to continue active growth even when severely infested with grasshoppers. The size and density of the kochia stand was favorable to grasshopper habitation but did not result in an increased number of egg pods laid compared with adjacent agricultural plots.
Document Type: Research Article
Publication date: 1990-12-01
- 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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