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Evaluation of Bermuda grass Resistance to Fall Army worm (Lepidoptera: Noctuidae): Influence of Host Strain and Dietary Conditioning

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Abstract:

Growth and development of four fall army worm (FAW), Spodoptera frugiperda (J. E. Smith), colonies (Louisiana, Mississippi, Georgia 1, and Georgia 2) representing two host strains (corn and rice) were evaluated on artificial diets (modified pinto bean, pinto bean, velvet bean caterpillar, and southwestern corn borer). The effect of strain-specific development and dietary conditioning on the level of resistance observed when FAW larvae were fed Bermuda grass, Cynodon dactylon (L.) Pers.; centipede grass, Eremochola ophiuroides (Munro) Hack; and zoysiagrass, Zoysia japonica Steud., was assessed. Differences in response to diet were observed between strains. Fall army worm acceptance of Bermuda grass var., 'Coastal' and 'Tifton 292,' was influenced by strain-specific development and dietary conditioning. The FAW strain and diet used to maintain laboratory colonies should be considered when Bermuda grasses are evaluated for FAW resistance.

Document Type: Research Article

Publication date: October 1, 1988

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  • 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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