Morphometric and Mating Compatibility of Dectes texanus texanus (Coleoptera: Cerambycidae) from Soybean and Sunflower
Authors: Niide, Terutaka; Bowling, Robert D.; Pendleton, Bonnie B.
Source: Journal of Economic Entomology, Volume 99, Number 1, February 2006 , pp. 48-53(6)
Publisher: Entomological Society of America
Abstract:The cerambycid Dectes texanus texanus LeConte that infests soybean, Glycine max (L.) Merr., is thought to be the same Dectes that damages sunflower, Helianthus annuus L. However, morphometric characteristics and mating compatibility between individuals from soybean and sunflower fields have not been assessed. Eight hundred eighty stalks of soybean and sunflower residues infested with Dectes were collected from Texas and Kansas. Outside stalk diameter of sunflower (22.6 mm) was 3.2 times greater than that of soybean. Diameters of tunnels by Dectes in sunflower and soybean were 7.0 and 3.4 mm, respectively. Widths of head capsules and pronotums were ≈1.3 times greater for Dectes larvae from sunflower than soybean. Larval, pupal, and adult Dectes from sunflower were ≈2.5 times heavier and 1.3 times longer than from soybean. Adults reared from residues of soybean and sunflower were paired to evaluate mating compatibility. Although individuals collected and reared from different crop residues differed significantly in size, percentage of mating success by Dectes from the two crops (26.2%) did not differ significantly from that by adults from the same kind of crop (34.9%). Results indicated that Dectes that infest soybean and sunflower are the same species and reconfirmed that farmers should not plant soybean and sunflower in rotation or in adjacent fields.
Document Type: Research Article
Publication date: 2006-02-01
- 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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