Relationship between planting dates and damage by the legume pod‐borer, Maruca testulalis (Geyer) (Lepidoptera: Pyralidae) on cowpea, Vigna unguiculata (L) Walp in Nigeria

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• Author for correspondence.
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• Present address: International Centre of Insect Physiology and Ecology, P.O. Box 30772, Nairobi, Kenya.
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