Efficacy of insecticide applications at different times of day against the legume pod-borer, Maruca testulalis (Geyer)(Lepidoptera: Pyralidae), on cowpea in Nigeria

abonos abonos verdes africa africa south of sahara afrique afrique anglophone afrique au sud du sahara afrique occidentale agricultural chemicals alimentos amendement du sol anglophone africa arthropode arthropods caupi cover plants cowpeas crops cultivos cultivos de grano economic plants engrais engrais organique engrais vert enmiendas del suelo feed crops feed legumes fertilizers foods grain crops grain legumes green manures hortalizas (plantas) hortalizas leguminosas insecte insectos insects invertebrados invertebrates legumes leguminosas leguminosas de grano leguminosas forrajeras lepidoptera maruca pesticide pesticides plaguicidas plantas plantas de cobertura plantas forrajeras plantas protectoras plante plante de couverture plante de culture plante de protection plants produit agrochimique produit alimentaire protective plants soil amendments vegetable crops vegetable legumes west africa