Adulticidal Activity of Coffee Essential Oils against Two Fruit Fly Species (Tephritidae) under Laboratory Conditions
Adalton Raga *
Instituto Biológico, Alameda dos Vidoeiros 1097, 13101-680, Campinas, SP, Brazil.
Sara Braga e Silva
Instituto Biológico, Alameda dos Vidoeiros 1097, 13101-680, Campinas, SP, Brazil.
Ester Marques de Sousa
Instituto Biológico, Alameda dos Vidoeiros 1097, 13101-680, Campinas, SP, Brazil.
Nilson Borlina Maia
Instituto Agronômico de Campinas, Avenida Theodureto de Almeida Camargo 1500, 13075-630, Campinas, SP, Brazil.
*Author to whom correspondence should be addressed.
Abstract
The aim of this study was to evaluate the adulticidal effects of green coffee oil (GCO) and roasted coffee oil (RCO) on two species of fruit flies (Tephritidae) include Ceratitis capitata (Wiedemann) and Anastrepha fraterculus (Wiedemann). Adult flies of both species were exposed to GCO and RCO at 2%, 3%, and 4% dilutions in water under Potter spray tower. In general, exposure to GCO and RCO at the three dilutions resulted in higher numbers of dead adults of both species compared to the control populations. The mortalities increased substantially between 60–90 minutes after initial exposure. The 2% GCO dilution reached a maximum of 77.0% corrected mortality of A. fraterculus at 360 minutes. In general, the toxic effect of coffee oils occurred more rapidly in C. capitata than in A. fraterculus. GCO (2% and 3%) and RCO (2%) showed promising results for fruit fly management.
Keywords: Coffea arabica, insecta, Anastrepha fraterculus, Ceratitis capitata