Ant problems demand targeted, effective sprays that work on contact and prevent future incursions. The selections below cover plant-based, fragrance-free, and traditional chemical options suitable for kitchens, bathrooms, entryways, and exterior foundations. This guide compares five top-rated sprays, highlighting where they excel and how to deploy them for best results.
| Product | Form | Use Area | Notable Benefit |
|---|---|---|---|
| Ortho Home Defense Insect Killer for Indoor and Perimeter2 | Aerosol/Liquid | Indoor & Perimeter | Long-lasting barrier up to 12 months |
| Mighty Mint Peppermint Oil Insect Repellent Spray | Plant-based Spray | Indoor & Outdoor | Pet-friendly, natural peppermint deterrent |
| STEM Kills Ants, Roaches And Flies | Plant-based Bug Spray | Indoor & Outdoor | Botanical actives, fresh scent |
| Mighty Mint Peppermint Oil Ant Killer Spray | Plant-based Spray | Indoor & Outdoor | Targets ants with concentrated peppermint oil |
| Raid Ant & Roach Killer | Fragrance-free spray | Indoor | Residual effect up to 13 weeks |
Choosing the right ant control spray depends on whether you prioritize natural ingredients, fragrance-free formulas, or long-lasting residual protection. The listed products provide options for pet-friendly use, interior living spaces, and exterior perimeter treatments. Consider surface types, the presence of children or pets, and whether you need quick knockdown or extended protection when selecting a spray.
Ortho Home Defense Insect Killer for Indoor and Perimeter2

Ortho’s Home Defense Insect Killer provides a broad-spectrum solution designed to protect interiors and exterior perimeters. It targets ants, roaches, spiders, fleas, ticks, and more, with a long-lasting barrier of up to 12 months on non-porous indoor surfaces. It is suitable for kitchens, bathrooms, doors, windows, and outdoor foundation edges. The Comfort Wand helps with precise application around entry points and tight spaces. The formulation supports both indoor and perimeter control, reducing recurring pest activity when applied as directed.
Mighty Mint Peppermint Oil Insect Repellent Spray

This plant-based spray uses extra-concentrated peppermint oil to deter spiders, ants, roaches, and more. It’s designed for both indoor and outdoor use, making it versatile for baseboards, entryways, patios, and living spaces. The formula emphasizes pet and family safety when used as directed, with no harsh fumes or synthetic residues. It provides a natural option for those seeking fragrance-friendly pest control without sacrificing effectiveness against common indoor invaders.
STEM Kills Ants, Roaches And Flies

STEM’s botanical insecticide uses plant-based actives to kill ants, roaches, and flies. It is designed for indoor and outdoor use and is tested by entomologists. The product emphasizes a fresh scent and avoids added dyes or harsh chemical odors. Safe around people and pets when used as directed, it offers a natural alternative for households seeking a non-traditional chemical approach with proven efficacy against common crawling pests.
Mighty Mint Peppermint Oil Ant Killer Spray

This ant-focused spray leverages peppermint oil and geraniol to repel and kill carpenter and sugar ants. It is suitable for indoor trails, baseboards, entryways, and other commonly trafficked ant routes. The formula is pet-friendly when used as directed, and intended to minimize chemical exposure while delivering reliable ant control. Its plant-based approach provides an alternative for households prioritizing natural ingredients without sacrificing performance against ants.
Raid Ant & Roach Killer

Raid Ant & Roach Killer targets a wide range of insects, including ants, cockroaches, waterbugs, silverfish, crickets, earwigs, and more. It provides residual insecticide power for up to 13 weeks after spraying, making it a practical choice for ongoing infestations. The fragrance-free formula is suitable for households sensitive to scents and allows precise treatment in cracks, crevices, and nesting sites within indoor spaces.
TERRO Ready to Use Indoor and Outdoor

TERRO’s ready-to-use spray focuses on carpenter ants, termites, and carpenter bees, offering fast-acting, long-lasting control with broad coverage. The two-way spray nozzle enables both broad application and precision treatment for cracks and crevices. While not among the five primary picks, its inclusion here provides a carpenter-ant-specific option for households facing wood-destroying pests and the need for targeted crack-and-crevice treatment.
Ortho Home Defense Max Indoor Insect Barrier

Ortho’s Max Indoor Insect Barrier provides 365-day protection against listed pests indoors, with applications around kitchens, bathrooms, basements, and exterior foundations. It’s designed for long-term indoor defense and perimeter protection, helping reduce re-infestation over the course of a full year on non-porous surfaces. The product is intended for comprehensive interior use and exterior barrier formation around the home.
Ortho Home Defense Insect Killer for Indoor & Perimeter Refill2

Ortho’s refill version provides a long-lasting bug barrier for indoor and perimeter use, similar to the main product but designed to replenish existing systems or spray applications. It supports ongoing protection against ants, roaches, spiders, fleas, and more on non-porous surfaces. Use around kitchens, bathrooms, doors, windows, and outdoor foundations to maintain a consistent pest-control program.
Buying Guide
- Target area: Indoor-only vs. indoor-and-perimeter formulations determine whether you need a home-wide barrier or focused treatment around entry points and foundations.
- Active ingredients: Plant-based and peppermint oil formulas offer natural options, while traditional chemical sprays provide longer residual control. Choose based on tolerance for scents and safety considerations for pets and children.
- Residual protection: If you experience recurring ant or roach activity, look for products advertising long-lasting protection (several weeks to months) on non-porous surfaces.
- Application method: Sprays with adjustable nozzles or wands allow precise treatment in cracks, crevices, and along baseboards. Consider nozzle versatility for hard-to-reach areas.
- Safety and usage directions: Always follow label instructions, especially around food prep areas, kitchens, and pet zones. Some products are fragrance-free or pet-safe when used as directed; others are not.
- Surface compatibility: Porous vs. non-porous surfaces affect how long a residual barrier lasts. Non-porous surfaces generally retain the barrier longer.
- Outdoor barriers: For exterior control, align perimeter spraying with foundation lines, patios, decks, and garages to deter entry from outside.