Effect of Emulsified Oregano Oil on Alternaria Alternata (In Vitro Tests) and On Lycopersicum Esculentum Mill Seedlings (In Vivo Tests)
Andrea Pérez-González, Judith Cavazos-Arroy, Genoveva Rosano-Ortega, Elie Girgis El Kassis, Beatriz Pérez-Armendáriz

Oil essence from aromatic plants has been considerable interest for antimicrobial properties in food and agriculture. This study evaluates the effect of oregano oil as a natural pesticide on a fungal pathogen (Alternaria alternate) isolated from red tomatoes (in vitro test) and effect on seedlings of it is under greenhouse condition (in vivo test). Microcosms tests were conducted used concentrations of 1%, 5% and 10% oregano oil emulsion over the growth of the fungus, showing a percentage of inhibition of 79.91%, 99.90% and 100%, respectively. Also, the fungicidal effect of the oregano oil was assessed in greenhouse tomato seedlings (n=20) with the same concentrations, the treatment of the 1% concentration showed the highest number of healthy leaves per plant performing even better than the chemical pesticides used.

Full Text: PDF     DOI: 10.15640/jaes.v5n1a18