Flies in compost bins are a common issue in worm composting bins and vermicomposting systems, especially when food scraps are exposed or moisture levels are off. The good news? You can get rid of flies naturally by making a few simple changes that support a healthy worm ecosystem.

Common Reasons Flies Appear in Compost Bins

• Too much food added at once

• Food scraps left uncovered

• Excess moisture in compost

• Poor airflow in the bin

Understanding the cause makes it easier to fix the problem long term.

Natural Ways to Get Rid of Flies in Compost Bins

• Bury Food Scraps Properly
  Always bury food under bedding like shredded cardboard, paper, or coconut fibre. This prevents odors and stops flies from laying eggs.

• Control Moisture Levels
  Compost should be damp, not wet. If your bin feels soggy, add dry bedding to absorb excess moisture and reduce flies in compost bins.

• Avoid Overfeeding Worms
  Overfeeding leads to rotting food, which attracts flies. Feed small amounts and wait until worms finish the previous scraps.

• Freeze Food Before Adding
  Freezing scraps kills fly eggs and larvae before they enter your worm compost bucket or bin.

• Improve Airflow
  Use a breathable lid or ensure air holes are not blocked. Proper airflow discourages flies and supports healthy composting worms.

• Let Worms Do the Work
  Active composting worms like red wigglers consume food quickly, leaving little for flies to feed on.

Conclusion

Flies in compost bins are a sign of imbalance—not failure. By adjusting feeding habits, moisture levels, and bedding depth, you can naturally eliminate flies while keeping your worm composting at home system thriving. A well-managed bin stays odor-free, fly-free, and productive.

At Meme’s Worms, we’re passionate about helping composters succeed with simple, natural solutions. If you need guidance on caring for worms or setting up the right system, we’re here to help.
📞 229-507-0203 

✉️ hello@memesworms.com

Healthy worms mean healthier compost—and fewer flies.