Objective: To evaluate the fungistatic capacity of aqueous extracts obtained from Citrusaurantium (sour orange) and Aloe vera L. on phytopathogenic fungi of the genus Fusarium spp.Design/Methodology/Approach: Three aqueous extracts were made (aloe peel, aloe peel and gel, and sour orange peel). The inhibition capacity in the in vitro growth of a Fusarium spp. strain was measured using the following concentrations: 750 g/mL, 500 g/mL, 250 g/mL, 1 mg/mL, 5 mg/mL, 10 mg/mL, 20 mg/mL, 50 mg/mL, 70 mg/mL, and 100 mg/mL in each extract. The control was sterile distilled water. The radial growth of the mycelium was measured daily, starting from the infected disc up to the edge of its diameter.Results: The following extracts recorded a good inhibitory response: 100- and 70-mg concentrations of aloe peel and gel in 1 mL of agar; 70-mg concentration of orange in 1 mL of agar; and 100-mg concentration of aloe peel in 1 mL of agar.Findings/Conclusions: The aqueous extract of aloe had a 47.5% inhibitory potential in the radial growth of Fusarium.
