PLANT EXTRACTS AS BIOFUNGICIDES AGAINST SOIL-BORNE PATHOGEN ALTERNARIA SPP.

In the presence of a warmer climate, increase comparative abundance fungal plant pathogens. Many most aggressive pathogens are soil-borne fungi. Alternaria species threaten food security as chemical fungicides currently used against them mostly ineffective because acquired resistance to active compounds. Broadleaf plantain (Plantago major L.) and rosemary (Rosmarinus officinalis extracts, obtained by subcritical CO2 extraction, were tested for their antifungal activity investigate possibility use sustainable protection. The ability two extracts inhibit mycelial growth was studied in vitro assay on agar medium containing different concentrations (200-1000 μL L-1). spp. isolate transferred modified test calculating average colony after 5 7 days. Results showed that extract had an apparent reducing effect dose-dependent. Because this, it can be considered potential alternative natural fungicide synthetic chemicals prevent control diseases.