The production of extracts of the Annonaceae family is considered an effective alternative for the control of the dengue vector, and its applicability is related to the persistence of the product in the environment. The aim of the present study was to evaluate the residual effect of Annona coriacea (Mart., 1841) extract on the development of Aedes aegypti (Linneaus, 1762). Plastic containers with the capacity of 25 liters were used to distribute the concentrations of 50 and 100 ppm of the extract, and DMSO (1%) and water were used as a control. These containers were exposed in the outer area of the laboratory. On days 1, 8, 15, 30, 45 after treatment application, 1.3 liters of each treatment was collected as a sample. Eight replicates with 25 larvae were applied for the two treatments, and four replicates for the control group. Evaluation of the mortality of larvae was carried out daily and the mortality of pupae and adults was observed. The experiment was conducted randomly in a 4 X 5 factorial scheme. The data was submitted to analysis of variance by F test, and the means compared by Tukey Test (p < 0.05). The concentrations of 100 ppm of the extract of A. coriacea showed residual effects with 100% mortality of larvae during the period of 15 days, and was not effective on the death of pupae and adults. Therefore, the residual effect presented by A. coriacea on A. aegypti can be used in future management programs for controlling the vector of dengue.
Mortality; persistency; larvae; dengue; Annonaceae