The essential oils of three specimens of Myrcia multiflora (A, B and C) and Eugenia florida were extracted by hydrodistillation, and the chemical compositions from the essential oils were identified by gas chromatography and flame ionization detection (CG/MS and CG-FID). The fungicide potential of the EOs against five fungicide yeasts was assessed: Candida albicans INCQS-40175, C. tropicalis ATCC 6258, C. famata ATCC 62894, C. krusei ATCC 13803 and C. auris IEC-01. The essential oil of the specimen Myrcia multiflora (A) was characterized by the major compounds: α-bulnesene (26.79%), pogostol (21.27%) and δ-amorphene (6.76%). The essential oil of the specimen M. multiflora (B) was rich in ( E )-nerolidol (44.4%), (E)-γ-bisabolene (10.64%) and ( E , E )-α-farnesene (8.19%), while ( E )-nerolidol (92.21%) was the majority of the specimen M. multiflora (C). The sesquiterpenes seline-3,11-dien-6-α-ol (12.93%), eremoligenol (11%) and γ-elemene (10.70%) characterized the chemical profile of the EOs of E. florida . The fungal species were sensitive to the essential oil of M. multiflora (B) (9-11 mm), and the lowest inhibitory concentration (0.07%) was observed in the essential oil of M. multiflora (A) against the yeasts of C. famata . Fungicidal action was observed in the essential oils of M. multiflora (A) against C. famata , with an MIC of 0.78 µL/mL and 3.12 µL/mL; C. albicans , with an MFC of 50 µL/mL and M. multiflora (C) against C. albicans ; and C. krusei , with a MFC of 50 µL/mL.

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