Functional Response of Chrysoperla carnea on Two Different Aphid Species (Aphis fabae and Acyrthosiphon pisum)

In this study, it was tried to determine the amount of prey consumed by Chrysoperla carnea (Stephens) (Neuroptera: Chrysopidae) at varying densities and its potency in reducing population pest. Aphids used as nutrients [Aphis fabae Scopoli Acyrthosiphon pisum Harris (Hemiptera: Aphididae)] were given each larval stage (InstarI, InstarII, InstarIII) predator certain numbers (5, 10, 20, 40, 80, 160). According data obtained, an increase food C. observed depending on density given. The attack coefficient (a) handling time (Th) also calculated separately for period. These values 1.12 23.62 min, respectively, when third larvae fed with A. fabae; while these found be 1.11 21.89 pisum.