How To Make Fruit Fly Traps
5. Fruit in a Bag
If you don’t have other materials, or if you just want to have a trap that is easy to make, a plastic bag could be what you need. It may not be as effective as other types of trap, but it will still trap some flies and is better than nothing. To do this, simply take some bait and place it at the bottom of the bag.
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Leave the bag slightly open and fruit flies will be attracted to the bait. Leave the bag in place and the following day you can tie the bag up to keep the flies in and you can put a new bag with bait in its place.
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