Effect of glyphosate, hexazinone and triclopyr on in vitro growth of five species of ectomycorrhizal fungi

Abstract

Abstract In vitro growth tests with glyphosate (Roundup R ), hexazinone (liquid Velpar L. R and granular Pronone™5G R ) and trichlopyr (Garlon R ) on five species of ectomycorrhizal fungi ( Hebcloma crustuliniforme, Laccaria laccata, Thelophora amcrieana, T. terrestris and Suillus tomentosus ) showed varied species sensitivity to different concentrations of herbicides. Fungal growth was significantly (P = 0.05) redueed particularly at concentrations above 10 ppm. Garlon with trieolopyr as a. i. was the most toxic of the four herbieide formulations.