The Mortality Effect of Some Plant Powders on the Cowpea Beetle, Callosobruchus maculatus Fab. (Coleoptera: Chrysomelidae)

Abstract

Abuelnour, N.A. 2023. The Mortality Effect of Some Plant Powders on the Cowpea Beetle, Callosobruchus maculatus Fab. (Coleoptera: Chrysomelidae). Arab Journal of Plant Protection, 41(3): 327-331. https://doi.org/10.22268/AJPP41.3.327331 This study aimed to test the biological effect of four plant powders: black pepper (Piper nigrum), ginger (Zingiber offiicinale), retem (Retama raetam) and rosemary (Rosmarinus officinalis) against cowpea weevil, Callosobruchus maculates Fab. in chickpeas using five concentrations, 0.0, 1.0, 2.0, 3.0 and 4.0% (w/w). Results obtained showed that all tested plant powders produced significantly higher mortality than the control and reached 80.63% in 96 h. Mortality rates increased proportionally with duration of exposure. The black pepper P. nigrum caused the highest beetles mortality at all exposure times which differed significantly from mortalities caused by the other plant powders used in this experiment. Keywords: Callosobruchus maculatus, plant powders, chickpeas, mortality