EN
Susceptibility of various cultivated mushroom strains to wet bubble caused by Mycogone perniciosa was estimated. The investigated mushrooms were char-acterized by cup size in the following categories: intermediate between large and medium size, medium size, and small size. The susceptibility assessment was done on the basis of the yield loss and change of the mean mass of fruiting body. The results showed that inoculum level of 1,3 × 106 spores per m2 was associated with a significant reduction of mushroom yield of all tested mushroom strains. The least sensitive to wet bubble was the mushroom strain F599 with cups be-tween big and medium. The most susceptible to wet bubble disease was the mush-room strain AM with cups between big and medium size and strain P-23 with small cup, what resulted in the high yield reduction and decrease in mean mass of fruiting body. The mushroom F58 was also susceptible to M. perniciosa infec-tion, what resulted in the high yield loss. The strain AM was characterized by the highest sensory assessment including taste, firmness and total note of overall quality.