Concentration of antifungal agent (ppm) 0 1000 1570 5000 10000 Larvae choice on methyl paraben 4.5 ± 0.51a 3.4 ± 0.48ab 4.5 ± 0.52a 1.3 ± 0.23b 0.9 ± 0.20b Larvae choice on potassium sorbate 1.9 ± 0.36b 2.7 ± 0.48ab 3.6 ± 0.38a 3.8 ± 0.47a 3.2 ± 0.36a Larvae choice on sodium propionate 3.4 ± 0.47a 3.5 ± 0.29a 3.4 ± 0.29a 3.5 ± 0.30a 3.1 ± 0.36a Mean ± SEM followed by the same letter within rows are not significantly different (P<0.05, Friedman test [JMP 10]).

Table 4: Number of V. cardui larvae fed on diet cylinders containing different concentrations of antifungal agents.