Sunflower Resistance to the Red Sunflower Seed Weevil (Coleoptera: Curculionidae)
Authors: GAO, HUlHUA; BREWER, GARY J.
Source: Journal of Economic Entomology, Volume 91, Number 3, June 1998 , pp. 779-783(5)
Publisher: Entomological Society of America
Abstract:The red sunflower seed weevil, Smicronyx fulvus LeConte (Coleoptera: Curculionidae), Is a major in sect pest of sunflower in North Dakota, South Dakota, and Minnesota. Economic damage is caused by the larvae which are internal seed feeders. During the 1992-1995 growing seasons, sunflower accessions were artificially infested and evaluated for resistance to the red sunflower seed weevil. Accessions 170411, 253417,and 170424 were resistant to the red sunflower seed weevil. Morphological types within accessions 170411 and 170424 varied for seed and pollen color and resistance to the red sunflower seed weevil. The resistant variant of accession 170424 had 45% of the seed damage of the susceptible type. In accession 170411, damage in the resistant type Was 55% of the susceptible. Antixenosis was the major resistance mechanism detected in accessions 170411 and 170424.
Document Type: Research Article
Publication date: June 1, 1998
- 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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