Response of Corn Seedlings to Simulated Southern Corn Root worm (Coleoptera: Chrysomelidae) Feeding Damage
Author: LANDIS, D. A.
Source: Journal of Economic Entomology, Volume 81, Number 4, August 1988 , pp. 1209-1213(5)
Publisher: Entomological Society of America
Abstract:The impact of simulated southern corn root worm (SCR), Diabrotica undecimpunctata Howardi Barber, feeding damage on survival, growth, and yield of corn was investigated. Seedlings were grown in the laboratory, then transplanted into field plots after one of seven SCR feeding damages was simulated. In 1985,simulated SCR damage had little effect on plant survival, growth, or yield. In 1986,damage effects varied in intensity between sites but followed similar trends. Damage to the developing crown node was most detrimental to seedling survival, growth, and yield, resulting in yield reductions of up to 44%. Simulated damage to the base of the lateral root and seed endosperm also inhibited growth and reduced yields. Damage to the scutecular node or the first internode, or removal of up to three-fourths of the primary root, had minor effects on plant performance. These results indicate that many below-ground plant tissuesare relatively insensitive to simulated SCR feeding damage. Feeding deterrents that shift SCR feeding from sensitive plant tissuesonto less sensitive ones may be useful in protecting corn yield.
Document Type: Research Article
Publication date: August 1, 1988
- 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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