Figure 6. Leaf consumption of beetles in feeding trials.

In binary-choice feeding experiments each two leaflets derived from plants previously used in olfactometer experiments were offered to individual beetles of Cerotoma ruficornis (A) and Gynandrobrotica guerreroensis (B) and leaf area consumption was determined. In this figure, it is not differentiated between leaf material derived from mature shoots or young entire plants. Pearson's correlations were calculated to evaluate effects of HCNp on leaf consumption.