Fungus gnats may be tiny, but their presence in your home can be a massive annoyance. These pesky insects thrive in damp soil, especially around your beloved houseplants. The good news? You can take control and eliminate them with a few expert strategies. Here's how to reclaim your space from fungus gnats effectively.

What Are Fungus Gnats?

Fungus gnats are small, mosquito-like insects that primarily feed on fungi, decaying plant matter, and moist soil. While they're harmless to humans, their larvae can wreak havoc on plant roots, leading to poor plant health and even death. Identifying the problem early is key to addressing it effectively.

Signs of a Fungus Gnat Infestation

Before jumping into solutions, ensure you're dealing with fungus gnats. Look for:

• Tiny flying insects: Hovering around your plants.
• Larvae in the soil: Translucent worms with black heads.
• Wilting plants: Larvae may be damaging the roots.

If you spot these signs, it's time to act.

Step 1: Reduce Moisture

Fungus gnats thrive in moist environments, so the first step is to dry them out—literally.

• Let the soil dry out: Allow the top 1–2 inches of soil to dry completely between waterings. This interrupts the gnats' breeding cycle.
• Improve drainage: Ensure your pots have proper drainage to prevent water from pooling at the bottom.

Pro tip: Avoid overwatering! Most houseplants prefer a little dryness over constantly wet soil.

Step 2: Target the Larvae

Since larvae live in the soil, focusing your efforts here is crucial.

• Use beneficial nematodes: These microscopic organisms naturally target fungus gnat larvae without harming your plants. Mix them into the soil according to the package instructions.
• Apply a soil treatment: Products like mosquito bits or diatomaceous earth can effectively kill larvae. Spread a thin layer over the soil to prevent larvae from maturing into adult gnats.

Step 3: Trap the Adults

Eliminating adult fungus gnats prevents further egg-laying.

• Set sticky traps: Yellow sticky traps are highly effective at catching adult gnats. Place them near the base of your plants to trap insects as they emerge.
• Create a vinegar trap: Fill a small container with apple cider vinegar and add a drop of dish soap. The gnats are attracted to the vinegar but won't escape once they land.

Step 4: Prevent Future Infestations

Once you've eradicated the gnats, preventing their return is essential.

• Repot your plants: If the infestation was severe, consider repotting with fresh, sterile soil to remove any lingering larvae or eggs.
• Use a soil cover: Add a layer of sand or decorative pebbles over the soil. This creates a barrier, making it harder for adult gnats to lay eggs.
• Maintain good habits: Regularly inspect your plants, avoid overwatering, and clean up any decaying plant material.

Natural Remedies for Fungus Gnats

If you prefer to avoid chemical treatments, here are a few natural alternatives:

• Hydrogen peroxide solution: Mix one part hydrogen peroxide with four parts water and use it to water your plants. This kills larvae without harming your plants.
• Essential oils: A few drops of neem oil in water can act as a natural repellent. Spray it onto the soil and leaves to deter gnats.

Discover one of our best-selling pots in the spotlight in this blog post.