Activity of Fungicides Against Epiphytic Yeast-Like Fungi of Winter Wheat
U. Wachowska
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Department of Phytopathology and Entomology, University of Warmia and Mazury, Prawocheńskiego 17, Olsztyn, Poland
Pol. J. Environ. Stud. 2009;18(6):1171-1176
In a field experiment the susceptibility of yeast-like fungi to selected fungicides with the active ingredients (a.i.) propiconazole, epoxyconazole, kresoxim-methyl, fenpropimorph, carbendazim, prochloraz and flusilazole, was analyzed. The direct effect of the fungicides on the colonies of yeast-like fungi was determined based on antibiograms – the diffusion method. The survival rate of the isolates of yeast-like fungi on the leaves of winter wheat seedlings was determined in a phytotron. The fungicides Alert 375 SC and Bumper 250 EC inhibited the growth of yeast-like fungi most effectively, both under field conditions and in laboratory tests. Juwel TT 483 SE significantly reduced the abundance of Sporobolomyces roseus on both upper and lower leaves of wheat plants under in vivo conditions. The isolate of Pichia sp. was resistant to the tested fungicides.
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