Three corm active compds. of fungicides (chlorothalonil, fluxapyroxad, tebuconazole) were mixed with polyether substituents-contg., trisiloxane, isodecyl alc. or rapeseed oil Me ester adiuvants and applied against Colletotrichum lupini mycelium in an in vitro expt. The growth of fungal colonies was mostly inhibited by mixts. of active compds. with ethoxylated isodecyl alc. and trisiloxane.