Bt Mosquito & Fungus Gnat Bits (30 oz)

Bt Mosquito & Fungus Gnat Bits is an organic biological larvicide that uses Bacillus thuringiensis subspecies israelensis (Bti) to control mosquito and fungus gnat larvae. The granules release the naturally occurring bacterium into standing water and moist soil, where larvae ingest it and stop feeding within 24 hours. This 30 oz size treats a wide range of breeding sites without harsh chemicals.

At a glance

• Active ingredient: Bacillus thuringiensis subsp. israelensis (Bti)
• Form: Granular bits
• Size: 30 oz
• Targets: Mosquito and fungus gnat larvae
• Speed: Works within 24 hours
• Residual: Effective up to 14 days
• Safety: Safe around people, pets, and wildlife when used as directed

Best for

• Water gardens, rain barrels, and bird baths
• Container plants and houseplants with fungus gnats
• Standing water where mosquitoes breed
• Organic and IPM-based pest programs
• Gardeners who want targeted control that spares beneficial insects

How to use

Sprinkle the bits over standing water or onto the soil surface of affected pots at the label rate. The granules begin working within 24 hours and continue protecting for up to 14 days, so reapply as needed through the season. Because it targets only mosquito and gnat larvae, it can be used repeatedly with minimal impact on natural enemies and non-target organisms.

About Grow Organic

Grow Organic supplies non-GMO seeds and earth-friendly garden essentials for growers who prefer natural, sustainable pest and soil solutions.

Sold by Grow Organic, based in Grass Valley, California.