Fly trap bags work by using a bait (attractant) to lure flies into the bag, where they become trapped and eventually drown.
Here's a breakdown of the process:
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Attraction: The bag contains a pre-mixed or user-added attractant. This attractant is typically a combination of food-based substances that flies find irresistible.
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Entry: Flies are drawn to the scent of the attractant and enter the bag through a specially designed opening. These openings are often shaped to make it easy for flies to enter but difficult to exit.
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Trapping: Once inside the bag, the flies become trapped in the liquid. They are unable to escape, and eventually drown. The shape of the entrance also prevents them from easily flying out.
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Decomposition: The dead flies decompose within the bag. The bag is usually disposable, meant to be discarded once it is full or the attractant loses its effectiveness.
In summary, fly trap bags use a strong scent to lure flies into a confined space filled with liquid, ultimately trapping and killing them. This is a common method for controlling fly populations in outdoor areas.