HUNGER, MOVEMENT, AND PREDATION OF COCCINELLA CALIFORNICA ON PEA APHIDS IN THE LABORATORY AND IN THE FIELD

摘要: Hunger and abundance of adult Coccinella californica (Mannerheirn) preying on pea aphids, Acyrthosiphon pisum (Harris), alfalfa, Medicago sativa L., were assessed in the field. There was no consistent relationship between or hunger aphid density. The field beetles encountered sampling 4 times hungrier at each observed density than expected from a simulation model predation that is driven by hunger. Laboratory studies revealed circadian rhythm beetle activity modified An index predatory potential (number average hunger) found to be better indicator impact absolute numbers all coccinellids separately. It suggested simply walking through produce most useful hungry beetles. This census must done daily however because high vagility coccinellids.