Terro Ant Dust Powder T600 - Ant & Crawling Insect Control, Pack of 3, Up to 8 Months Residual

This easy-to-apply dust comes in a three-pack of T600 units and is formulated to reach insects where sprays and baits can’t—into wall voids, cracks, crevices, and soil entrances. Designed for both household and perimeter use, the powder clings to insect bodies and transmits control through contact and grooming behaviors. It’s ideal for targeted treatments that need to persist over time without frequent reapplication.

How does this dust work where sprays fail?

The powder is meant for placement in tight spaces and insect pathways that liquid products cannot penetrate. Once insects walk through treated areas, the dust adheres to their bodies and is carried back to nests, increasing exposure across colonies. This mechanical transfer helps reach concealed stages and individuals.

• Clings to insect exoskeletons for cross-transfer within colonies
• Applied into voids, wall gaps, and soil openings—places sprays miss
• Works on contact and through grooming behavior of pests

Is TERRO T600 safe to use indoors and near entry points?

TERRO T600 is intended for targeted, localized applications; follow label directions precisely to limit exposure to people and pets. Apply the dust in inaccessible voids, under appliances, and along baseboards rather than on open floor surfaces. Avoid contamination of food areas and wash hands after use.

• Use in wall voids, under cabinets, and behind baseboards for indoor control
• Restrict application to cracks and crevices away from play areas and food prep zones
• Label instructions outline precautions for family and pet safety

How long will a single application last and how often should I reapply?

When applied as directed, the formula can provide residual activity for up to eight months in protected locations. Environmental factors such as moisture, heavy traffic, or sunlight exposure will reduce longevity and require earlier retreatment. Inspect treated sites periodically and reapply when dust is no longer visible or pest activity resumes.

• Up to eight months of residual control in sheltered voids and dry areas
• Reapply sooner in damp, high-traffic, or exposed locations
• Visual checks help determine when additional treatment is needed

Which pests will this product help control around my home?

TERRO T600 targets a broad range of crawling insects often found in and around residences. Use it against foraging ants, fire ants, common roaches, spiders in harborage sites, and other listed crawlspace pests. It’s a versatile option for spot treatments where insect activity is concentrated.

• Effective on ants, including fire ants when applied to mounds and trails
• Controls roaches and other crawling insects in nesting sites
• Reduces spider harborage when used in cracks and mating/feeding areas

Who is this for: Homeowners, rental property managers, and DIY pest-control users who need a durable, targeted dust for hard-to-reach infestation sites. It’s best for people comfortable following label directions for confined-space applications and who want a residual solution that complements baiting and exclusion measures. For large or persistent infestations, consider professional assistance alongside this targeted dust.