Celem przeprowadzonych badań było określenie skuteczności testowanych biofungicydów i środków chemicznych w ochronie ogór­ka w uprawie pod osłonami przed mączniakiem prawdziwym (Podosphaera fusca). Badane produkty zawierały w składzie: COS-OGA,Bacillus subtilis szczep QST 713, olejek pomarańczowy, metrafenon i azoksystrobinę + difenokonazol. Doświadczenia prowadzone były w latach 2021 i 2022 w Instytucie Ogrodnictwa – Państwowym Instytucie Badawczym w Skierniewicach. Wykazano, że po 7 dniach po ostatnim zabiegu najwyższą skuteczność ograniczania patogenu w obydwu latach badań wykazały produkty zawierające: metrafenoni azoksystrobinę + difenokonazol. Niższą efektywność zwalczania uzyskano w wyniku stosowania B. subtilis szczep QST 713, COS-OGAi olejku pomarańczowego.

The aim of the study was to determine the efficacy of the tested biofungicides and chemicals products in the protection of cucumber under cover against powdery mildew (Podosphaera fusca). The tested products included in their composition: COS-OGA, Bacillus subtilis strain QST 713, orange oil, metrafenone and azoxystrobin + diphenoconazole. The experiments were conducted in 2021 and 2022 at the Institute of Horticultural – National Research Institute in Skierniewice. They showed that 7 days after the last treatment, the highest efficacy in reducing the pathogen in both years of the study was demonstrated by products containing: metrafenone and azoxystrobin + diphenoconazole. Lower efficacy of control was achieved by B. subtilis strain QST 713, COS-OGA and orange oil.

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