“Selection of Chemical Pesticide to Minimize Toxic Effect to Ladybird Beetle [Coccinella Septempunctata Linn (Coleoptera: Coccinellidae)] While Managing Black Bean Aphid [Aphis Fabae Scop. (Hemiptera: Aphididae)]”. 2023. Nepal Agriculture Research Journal 15 (1): 33-45. https://doi.org/10.3126/narj.v15i1.51037.