Chinch Bug on Sorghum: Chemical Control, Economic Injury Levels, Plant Resistance

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Foliar applications of ethyl parathion, carbaryl, carbofuran, and Penncap M® (0-0-Dimethyl O-P-nitrophenylphosphorothioate) significantly reduced numbers of Blissus leucopterus leucopterus (Say) on sorghum. Granular phorate and carbofuran applied in the soil successfully controlled chinch bugs in laboratory tests but were not to effective in one field test. Thirty adult chinch bugs/plant killed 75–125 mm sorghum plants in 6–7 days and fewer caused death or severe stunting, depending on plant size. More than 1700 chinch bugs/plant at bloom stage significantly reduced sorghum yields. 'Early Sumac' was significantly more resistant to chinch bugs than 'Honey', 'Redlan', or 'Spanish Broomcorn', which were almost equally susceptible.

Document Type: Research Article

Publication date: December 1, 1978

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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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