Atrativos alimentares na flutuação populacional de moscas-das-frutas e abelha irapuá

Abstract

Fruit flies are important pests for most fruit species due to the damage they cause, precluding the marketing of fruit. This study aimed to test different fruit juices as food attractants in the monitoring of population fluctuation of fruit flies and Irapua stingless bees, in an orchard in the south of Minas Gerais (Brazil) consisting of different fruit species: citrus, passion fruit, peach and acerola (west Indian cherry). The monitoring was conducted for a year, in a randomized block design with five treatments: fresh orange juice (50%), prepared with fresh fruit, and juices prepared from Brasfrut® frozen pulp and 10% granulated sugar in the flavors of mango (30%), guava (30%) and passion fruit (30%), in addition to granulated sugar solution (10%). Four replications were made, with split plots in time, related to the different evaluation times. Each block was represented by a different fruit species, namely citrus, passion fruit, peach and acerola. Traps with 200 mL of each attractant were distributed among the fruit plants, with a trap installed in the middle third of each plant, totaling 20 traps in the experiment. The juices of orange, mango, guava and passion fruit showed good attractiveness for the monitoring of fruit flies. For population monitoring of the stingless bee, the juices of orange, mango and guava were more efficient.