In field experiment conducted during years 1993-2005 the influence of metribuzin on phytotoxic reaction of 126 potato cultivars (95 table and 31 starch) was studied. Metribuzin was applied after emergence of potato plants (10-15 cm high). The estimation of this reaction and rate of its disappearance was done on the basis of 9- level scale (1 - plant resistant - no symptoms, 9 - total plant destruction). From among 126 tested cultivars, only 5 were resistant (without any reaction) and 10 were sensitive to metribuzin. Total destruction of plants was not observed for any cultivar.