Predation of 3-Instar Chrysopa sinica Larvae on Frankliniella occidentalis

The functional response and searching rate of 3-instar Chrysopa sinica larvae on Frankliniella occidentalis were studied in laboratory.The results showed that the functional response could be described with Holling II equation at 26℃.The predation capacity of 3-instar C.sinica larvae on F.occidentalis adults and larvae increased with the increasing density of F.occidentalis,but the searching rate decreased.The maximal predation was 625.0 individual and 714.3 individual per day,respectively.