In the investigations rated the antimicrobial activity of aqueous plant extracts (decoction, infusion, macerate) for inhibition of growth of colonies of pathogenic bacteria and fungi. Activity of the tested extracts depended on the species of plants, extracts preparatio methotds and the sensitivity of bacteria and fungi selected for testing. Inhibitory activity against bacteria showed extracts of Artemisia absinthium L. Additionally amoung all extracts the most active were macerates, and the pathogen, which most strongly reacted was Listeria monocytogenes. The growth of fungal pathogens inhibited extract of Allium sativum L. The weakest of the tested extracts proved to be macerate, infusion and decoction from Lavandula vera L. On the other hand the growth of fungi was the most limited by macerates. Among all investigated fungi the most sensitive to used extracts were: Sclerotinia sclerotiorum and Cladosporium zielearum
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