highly significantp < 0.001
Results Bioassay—Insecticidal Efficacy of Spinosad Applied on Larvae and Adults Contact toxicity of spinosad had a highly significant effect on mortality in last instar larvae of D. maculatus (dose: F 6,139 = 245.06; days: F 3,139 = 524.23; in both cases p < 0.001) ( Figure 1 ).