Fruit fly eggs or larva usually arrive on fruits and vegetables, and when they mature, they look for smelly, wet areas to lay more eggs.
A single female fly can lay 400 eggs in one piece of fruit. Ripe fruit, dirty drains or a neglected compost pail could be the problem.
To keep fruit flies from multiplying:
- Keep a lid on your kitchen compost and empty it regularly.
- Seal up or refrigerate all fruits and vegetables.
- Clean drains regularly. Consider using baking soda and vinegar, rather than a chemical drain cleaner.
- Trap fruit flies in a shallow dish of apple cider vinegar doused with a few drops of dish soap.
- For fun fruit fly control, grow a carnivorous plant!