Nta, A. I.; Agbo, B. E.; Udoekong, N. S. Bio-Insecticidal and Grain Protectant Activities of Mixed Powder of Ocimum Gratissimum and Vernonia Amydalina Against Callosobruchus Maculatus (Coleoptera: Bruchidae). rabr-v1 2019, 120-128.