Bio-insecticidal and Grain Protectant Activities of Mixed Powder of Ocimum gratissimum and Vernonia amydalina against Callosobruchus maculatus (Coleoptera: Bruchidae) in Calabar, Nigeria Journal title: Asian Journal of Biology Authors: A. I. Nta, B. E. Agbo, N. S. Udoekong Subject(s):
