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LABORATORYJNA OCENA SKUTECZNOŚCI SUBSTANCJI CZYNNYCH FUNGICYDÓW W OGRANICZANIU WZROSTU PATOGENÓW RZEPAKU

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Perek A., Pieczul K., Świerczyńska I.
Zagadnienia Doradztwa Rolniczego
|
2016
|
issue 3(85)
97-100
EN
The aim of the study was to evaluate the efficacy of growth inhibition of the most important oilseed rape disease agents, by fungicides used for the crop protection. Isolates: A. brassicae, A. brassicicola and A. alternata (black spot disease), L. maculans (stem canker), B. cinerea (gray mold) and S. sclerotiorum (sclerotinia stem rot) were used. The study was performed under laboratory conditions, on PDA medium containing: azoxystrobin (strobilurin), cyproconazole, tebuconazole, tetraconazole (triazoles), prochloraz (imidazole), carbendazim and thiophanate-methyl (benzimidazoles) in concentrations 1 and 6 ppm. The tested fungicides were characterized by high variability of growth inhibition level of the tested species. Prochloraz and triazoles limited the growth of tested species the most effectively. The weakest inhibition level for L. maculans, B. cinerea and Alternaria spp. was shown by benzymidazoles, while azoxystrobin was ineffective for grown reducing most of S. sclerotiorum and some of B. cinerea isolates.
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