highly significantP <0.0001
Both fungal strains (S2 and S3) caused a highly significant mortality to the ants when applied at high doses in the challenge ( Fig. 1 and Table 1 ; C-C vs C-S2, early challenge: d.f. = 3.9, P <0.0001, late challenge: d.f. = 3.3, P <0.001; C-C vs C-S3, early challenge: d.f. = 5.1, P <0.00001, late challenge: d.f. = 4.1, P <0.0001).