The inhibitory effect of fungicides Benfungin WP and Kaptan Flon on the growth of mycelium of mycorrhizal fungi

The paper presents the results of the laboratory studies of the effects of two types of fungicides (Benfungin WP and Kaptan FL) on the growth rate of the mycelium of the following species of mycorrhizal fungi: Suillus luteus (L. ex Fr.) S. F. Gray, Suillus bovinus (L.ex Fr) Roussels, Suillus granulatus (L. ex Fr.)O. Kuntze, Paxillus involutus (Batsch ex fr.), Hebeloma spp., Amanita muscaria (L. ex Fr.) Hook. The observed fungicides were used in two concentrations - Benfungin WP in 0.04 and 0.06% concentrations and Kaptan FL in 0.2 and 0.3% concentrations. Benfungin had no effect on the growth of mycelium of Hebeloma spp., whereas in the direct contact in both concentrations it affected all other fungi, by stopping the growth of the mycelium. Kaptan FL had the similar effect in both concetrations, by stopping the growth of mycelium of Hebeloma spp., A. muscaria, P. involutus and S. luteus. It had no effect on the growth of mycelium of S. bovinus and S. garnulatus.