Natural Products Obtained from Argentinean Native Plants Are Fungicidal against Citrus Postharvest Diseases

Natural products obtained from plants constitute an alternative to chemically synthesized fungicides, whose improper use might have caused the development of resistant fungal strains. In present work, 40 20 native Argentinean plant species were tested against three citrus postharvest pathogens: Penicillium digitatum, italicum, and Geotrichum citri-aurantii. by classical solvent extraction methods fungicidal evaluation was carried out agar diffusion tests using commercial fungicides as negative controls dimethyl sulfoxide a positive one. The inhibition percentages determined 7 14 days post inoculation each fungus. Most showed higher than 50% for G. citri-aurantii, but only 20% them active P. digitatum italicum. most promising which inhibited (100%) growth at least one phytopathogens extracted following plants: Orthosia virgata, Petiveria alliacea, Funastrum clausum, Solanum caavurana, pilcomayense. These over inoculated oranges there no statistically significant differences between treatments with fungicide methanolic extract in control fruit rot. potential, further studies are required.