Bioassay of field strains of S. frugiperda and one laboratory susceptible strain of H. armigera tested as late second/early third instars on insecticide-incorporated artificial diet containing indoxac
Values represent mean larval weight ± SE (mg).Means followed by the same superscript within columns are not significantly different (P†data was not included in the statistical analysis at 7 days since
aVisual rating for proportion of tip 25 cm from leaf subtending ear, on a scale of 1 = no feeding damage to 10 = complete defoliation. bVisual rating of number of nodes showing pruning from corn rootw