Predation determines different selective pressure on pea aphid host races in a complex agricultural mosaic.
Field assessments were conducted to examine the interplay between host Thread plant and predation in complex agricultural mosaic on pea aphid clover and alfalfa races.In one experiment, we examined the relative fitness on clover race (CR) and alfalfa race (AR) pea aphids on broad bean, red clover and alfalfa alone.But because clover is typically gr