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Preliminary Studies on the Integrated Control of the Pest Complex on Cowpea, Vigna unguiculata Walp., in Nigeria1

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Abstract:

Attempts have been made to introduce an integrated approach to the control of the pest complex on cowpea. Field trials during 1966 showed that 6 applications of lindane (gamma BHC) at the rate of 0.25 Ib per acre did not give a significantly better control of lepidopterous pests of cowpea flowers and pods than 3 applications of Bacillus thuringiensis followed by 3 applications of gamma BHC and did not significantly increase yields of dry seed. Mortality of larvae of the lepidopteran Maruca testulalis Geyer in field samples was higher in Bacillus- treated plots. The slightly higher yield in the gamma BHC was accounted for by a probably more effective control of hemipterous insects during the early phase of the crop. Damage on the late-season crop was slightly lower in these experiments, and this fact was ascribed to the cultural control practice at the end of the early season. A combination of the use of bacterial preparations, chemicals, and the removal of crop remains offers a promising trend for integrated control of cowpea pests.

Document Type: Research Article

Publication date: August 1, 1969

More about this publication?
  • 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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