The invention refers to a method and device for the prolonged monitoring and control of fruit flies of the Tephritidae family. This invention combines for first time visual stimuli with baits and liquid insecticides used in the chemical combat of flies. The innovation of this product lies in the device that releases the mixture, which is based on the barometer of Torricelli, which is inserted in the inner portion of a sphere which size and color are attractive to flies, which enables the insecticide-bait mixture to be released by a prolonged time and which simultaneously allows the biological activity of the components to be maintained. The invention, compared to other traps, is advantageous due to its capacity to attract and retain flies. Another advantage refers to the re-baiting services, which are performed every 3 months. Another advantage is that even though it is a wet trap, it can be checked in the same manner as dry traps, since the liquid is not sieved for separating the cap tured flies.
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