INGRID, D. T.; AKWANJOH, S. R.; YACOUBA, M. Insecticidal Activity of Ageratum conyzoides (Asteraceae) Aqueous Extracts against the Grasshopper Zonocerus variegatus (Orthoptera: Pyrgomorphidae). Journal of Agriculture and Ecology Research International, v. 21, n. 8, p. 29-36, 9 out. 2020.