Adenike Oyewole, K. , Awojide, S.H. and Tayo, A.S. 2023. Chemical composition of essential oil in Piper nigrum from Nigeria and its bioactivity against stored-grain insects. Hue University Journal of Science: Natural Science. 132, 1B (Jun. 2023), 123-131. DOI:https://doi.org/10.26459/hueunijns.v132i1B.6928.