A, Virulence of wild-type strain (Ml03) and fast growing UV-induced mutants UV-20a, UV-40b, and UV-60c; B, the percent mortality is given on 3 and 6 d post-infection. (B) Adjusted accumulative mortality of wild-type strain (Ml03) and MlUV-40b mutant (UV-40b) tested against 2nd instar P. xylostella. The percent mortality is given at concentration of 1.0x106 conidia/ml. Data are presented as Mean ± SE.