Efficacy of newly Synthesized Pesticidal Chemical ‘4-[3-(4-Biphenyl)-1,6-Dihydro-6-Iminopyridazin-1-yl] Butyronitrile hydro Bromideon bean Aphid, Aphis craccivora Koch (Homoptera: aphididae). Bangladesh J. Zool. 2022;50(2):261-272. doi:10.3329/bjz.v50i2.62058