Effect of essential oils on the development of Colletotrichum sp. fungus in fragments of Feijoa sellowiana fruits

The aim of this work was to evaluate the effect essential oils Syzygium aromaticum, Cymbopogon citratus, Eucalyptus citriodora and Rosmarinus officinalis on mycelial development fungus Colletotrichum sp. in fragments Feijoa sellowiana fruits. were incorporated PDA (Potato-Dextrose-Agar) medium concentrations 250, 500 1000 ppm, 0 ppm (PDA only) (negative control), fungicide fluazinam 1% (positive control). area under growth curve (AUMGC) percent inhibition (PIMG) calculated. In second evaluation, fruits bordering disease symptom immersed aqueous solution S. C. E. citriodora, at concentration 5000 (water only - negative control) immersion times treatments were: 2, 4, 8, 12 24 hours, with subsequent incubation Agar-Agar 25°C. This evaluation performed daily for 15 days, observing moment fungal germination through emission mycelium. It verified from obtained results that all reduced growth, citratus aromaticum totally inhibited its dose respectively. Regarding test fruit fragments, oil hours effective inhibiting until 15th day evaluation.