Seed treatment efficacy on aphids in pulse crops

Abstract

Key findings • Blue green aphids (BGA, Acyrthosiphum kondoi) did not establish colonies on faba bean or chickpea, indicating that these are not its primary hosts. • Cowpea aphid (CPA, Aphis craccivora) had the highest number of live adults (41.8) and nymphs (181) in faba bean plants among the three aphid species tested • Pea aphid (PA, Acyrthosiphum pisum) showed the fastest multiplication rate in both of the host plants and reached the highest mean number of nymphs (58) on the untreated chickpea. • CPA and PA adult counts were reduced on chickpea and faba bean plants grown from imidacloprid treated seed three, seven and 14 days after infestation (DAI).