Influence of fungicides on the growth of the fungus Clonostachys rosea IK726

The fungus Clonostachys rosea IK726 is effective not only against many serious soilborne pathogens like Fusarium oxysporum f. sp culmorum, Bipolaris soroki-niana, etc. but also against foliar pathogens like Botrytis cinerea, Alternaria dauci etc. The aim of this study was to investigate the influence of some fungicides on the mycelial growth of this fungus in vitro and to calculate EC sub(50). Totaly 13 fungicides were checked: Fosetyl-Al, Pyraclostrobin, Captan, copper-hydroxide, Propineb, Thiophanate-methyl, Mancozeb, Carbendazim and Boscalid that are applied as foliar sprays, and Thiram, Hymexazole, Previcur and Iprodione that are applied by soil irrigation. According to the results, Carbendazim and Pyraclostrobin were the most active of all with EC sub(50) = 2 kg mL super(-1) and 5 kg mL super(-1) respectively, followed by Thiram and Copper-hydroxide with EC sub(50)= 27 kg mL super(-1) and 29.7 kg mL super(-1)respectively. Regarding Iprodione, Thiophanate-methyl, Captan, Mancozeb, Hymexazole and Propineb the EC sub(50) was 217.5, 240, 250, 320, 360 kg mL super(-1) and 1300 kg mL super(-1) respectively. Finally, Boscalid and Previcur did not affect the mycelial growth of the fungus at doses of 500 and 432 kg mL super(-1) respectively. The results demostrate that some fungicides like Boscalid, Previcur, Propineb, Hymexazole etc could be combined with C. rosea IK 726 in integrated pest manangemt systems.