Acyrthosiphon pisum (Harris) (Homoptera: Aphididae) feeding preference and performance on cool-season food legumes in northwestern Ethiopia

摘要: Pea aphids severely constrain food legume production in Ethiopia. aphid preference and performance on common crops (field pea, faba bean, lentil grass pea) were tested with no-choice, dual- multiple-choice experiments under greenhouse conditions northwestern The results revealed that pea preferred field peas, lentils peas more than bean. Growth rate of varied crop variety plant growth stage. Field died within 30 d. Cumulative load was higher bean lentil. In the no-choice experiment, mean number per five plants ranged between 1.8 at 5 d after infestation (DAI) improved 321.5 20 DAI local pea. experiments, required less 1 to infest plants, 4–11 No immune infestation, but overall, gras...