Struggling with fungus gnats in your houseplants? Diatomaceous earth is a natural and effective way to control larvae in the soil and protect your plants. When applied correctly, it helps break the lifecycle of fungus gnats and keeps your terrariums and plant pots pest free.

This fine powder works by dehydrating soft-bodied pests like fungus gnat larvae, helping reduce infestations without harsh chemicals. It is ideal for houseplants, terrariums and indoor growing setups.

Why you’ll love it

• 100% food grade amorphous silica

• Targets the soil stage of fungus gnats

• Also helpful around pots for slugs and at the soil line for root mealybugs

• Packed in a resealable zip bag to keep it clean and dry

Best for

• Breaking the fungus gnat life cycle in the top layer of houseplant soil

• Creating a dry barrier around pots kept indoors or under cover for slugs

• Intercepting root mealybug crawlers at the soil line during repotting