Control of Sorghum Midge with Chlorpyrifos in Australia

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Abstract:

Chlorpyrifos and DDT were compared at different rates for control of Contarinia sorghicola (Coquillett) on grain sorghum in 3 replicated field experiments and 1 aerial field trial in New South Wales and Queensland in 1973 and 1974. With extended flowering of grain sorghum and 7 applications, chlorpyrifos at 150 g/ha at 5 day intervals gave significantly higher (P <0.05) yield in percent grain set than DDT at 500 g/ha at 5 day intervals. With restricted flowering and single applications chlorpyrifos at 280 g/ha gave significantly higher (P < 0.05) yield in set of grain than DDT at 1120 g/ha.

Document Type: Research Article

Publication date: October 15, 1975

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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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