How To Make Fruit Fly Traps
3. Jar with Holes in the Lid
Jars will often come with a lid that you can screw on or off, which are ideal for sealing the jar to help keep the contents inside fresh. If you do have a jar that still has one of these lids then it can increase the effectiveness of your fruit fly jar trap.
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Before fixing it onto the jar, first make some holes in the lid. Make sure that you create the holes from the top because this will cause the holes to bend inwards, making it harder for the flies to escape. A removable lid will also make it easier to clean that jar as and when necessary.
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