Capture of Anastrepha fraterculus (Wiedmann, 1830) and Ceratitis capitata (Wiedmann, 1824) (Diptera: Tephritidae) attractive feeding associated to colour pigment and insecticide

Abstract

Fruit-flies are considered "key" orchard pests because their laying and their worms cause damages in the fruits. To study the attractiveness of flies by associating attractive feed, pesticide and pigment it was installed one experiment in a peach orchard, thiripa' variety, in Chapecó, SC, South Brazil. The design was established in a factorial structure with four replicates in time and three factors combined: with and without trichlorfon 1 %; with and *without food yellow pigment 0,625 %; and four attractive feed, totaling 16 treatments. The feed used were: inverted glucose 10 %, hydrolysis protein 5 %, dyed vinegar 25 % and di-ammoniac phosphate 1,25 %. The trap flasks with 200 ml of ingredients were put in the canopy. Five days after the formulations were changed and the samples were brougth to Fitossanity Laboratory of Research Center for Small Farms of Epagri, where the flies were counted. Results showed that insecticide with no repellent action and yellow pigment were favourable in capturing tefritids. Inverted glucose 10 % was the most efflcient attractive food to fruit-flies, with prominence in the atractiveness of Anastrepha fraterculus.