In vitro evaluation the toxicity in mixture of glyphosate and methyl metsulfuron against strains of Trichoderma spp

Trichoderma is an antagonist fungus used in agriculture and forestry for the diseases control. The use of herbicides metsulfuton methyl glyphosate a common practice weed control that limits use. This study has evaluated toxic effects ofthe metsulfuron on four strains fungi genus (GRB-HA1, GRB-HA2, GRB-HA8 GRB-HA9). Poisoned media were prepared with high doses 25 mL·L-1 + 0.2 g L-1 (D500) low 12.5 0.2g (D250) to determine viability. exposure time (30-90 min) germination conidia determined using suspensions mixtures D500 D250. results showed differential sensitivity affected viability mycelial growth