Table 1 Mean ( SE) feeding preference index (PI) values for soybean looper and bean leaf beetle fed soybean PI 227687 leaflets expressing cross resistance induced by bean leaf beetle and soybean looper feeding, respectively.

Treatment Mean PI index1 Bean leaf beetle feeding 0.595 0.020 a Soybean looper feeding 0.443 0.015 b P-value2 0.0120

1Means followed by the same letter are not significantly different (P<0.05), by protected LSD 2Probability values for the F-test of treatments in each test soybean (df = 1)