How the trap works
Reusable Outdoor Fly Traps use a water-activated bait to attract and capture filth flies. The bait is supplied as a dissolvable refill packet. You drop a packet into the reusable bottle and add warm water, which dissolves the packet and begins a natural fermentation process. Over the next 24 to 48 hours the bait releases a scent that draws flies into the trap through a one-way entry cone, where they are caught and cannot escape. The trap works by scent-based attraction and contains no insecticides.
What it catches
The bait is formulated to attract filth flies, including house flies, blow flies, bottle flies, and flesh flies. It is not designed to attract pollinators such as bees and butterflies.
What to expect
- Allow 24 to 48 hours to activate. It is normal to see few or no flies during this fermentation period, and effectiveness increases as the temperature rises.
- More fly activity near the trap at first is normal. The trap draws flies from the surrounding area as it pulls them away from your living space. Hang it at least 20 feet from patios, doors, and windows.
- Warmth and sunlight speed up activation. Below about 65 degrees F (18 degrees C) it takes longer to start working, so place the trap in a sunny spot for the best results.
- The smell is how it works. The bait itself has only a mild smell. As the trap catches flies, they die and rot inside it, and the smell grows strong. It will smell very bad, like rotting meat. That is normal. That smell draws in even more flies, so the trap works better the fuller it gets. This is why the trap hangs at least 20 feet from where people spend time. Maggots in a full trap are normal too.
- Use it outdoors only. Its smell is what draws flies.
Reusable construction
The trap is a rigid, semi-transparent bottle with a one-way entry cone and a top cap that directs the scent outward. The semi-transparent housing lets you monitor the fill level without opening the unit. The trap is reusable across the season; only the bait packet is replaced each cycle.
Bait composition
The bait is a granular, water-soluble, protein-based attractant made from food-grade ingredients (egg, fish meal, yeast and bran) and contains no insecticides. It is biodegradable.
Bait cycle and disposal
Replace the bait when the trap is full or stops catching. Empty and clean the trap when it is full or at the end of the season. To empty, close the lid to drown any remaining live flies, then pour the contents into a bag and dispose of it in an outdoor trash can. Because the bait is food-grade, the contents may also be buried in a garden as a high-nitrogen soil amendment.
