10 Best Insecticides For Scorpions 2026 in the United States

Ortho Home Defense Insect Killer is a ready-to-use spray designed for indoor and outdoor use, targeting various insects including scorpions. It contains 0.05% bifenthrin as the active ingredient, which is known for effective insect control and provides a long-lasting barrier, protecting treated areas for up to 12 months on non-porous surfaces. The spray comes with a battery-powered Comfort Wand applicator, making it easier to apply consistently around your home’s perimeter, patios, and common entry points for pests.

This product is versatile, handling ants, cockroaches, spiders, and importantly, scorpions, which can be difficult to eliminate with some insecticides. Its liquid spray form allows precise application on both indoor and outdoor areas. In terms of safety, bifenthrin is moderately toxic to humans and pets, so following label instructions carefully is important to minimize risks.

While it offers strong residual protection outdoors and indoors, its effectiveness depends on thorough application and may vary on porous surfaces like wood or soil where the chemical breaks down faster. For someone dealing with scorpions around the house, this insecticide provides a practical and convenient solution with proven results and a good balance of long-lasting power and ease of use. Users should take precautions during application and understand that severe infestations might require additional treatments or professional help.

Suspend SC Insecticide is a concentrated spray containing deltamethrin, a powerful ingredient effective against scorpions and many other crawling insects like ants and spiders. Its liquid concentrate form mixes with water and can be applied around the outside and inside of your home, including places like garages, patios, and even cracks and crevices where pests hide.

One of its main advantages is its long-lasting effect; once applied, it keeps working for an extended time, helping prevent scorpions from entering your living spaces instead of just killing those you see right away. The product is designed to create a protective barrier around doors, windows, and foundations, which is exactly what you want for scorpion control. It’s low odor and safe enough to use indoors if you follow directions carefully, although like all insecticides, it should be handled with caution to avoid exposure.

The large one-gallon bottle is practical if you need to cover a wide area or perform regular treatments. Because it’s a concentrate, you’ll need some care in mixing and applying it properly. Also, while it targets a broad range of pests, it’s not a quick knockdown spray, so results may take time to appear after application. For those looking for a reliable, long-term solution to keep scorpions and other pests at bay around their home’s perimeter, Suspend SC offers good value and effectiveness when used as directed.

Tempo SC Ultra Insecticide Concentrate is a liquid, water-based formula designed to control a wide range of crawling insects like ants, spiders, and other common pests around homes. Its formulation type is a suspension concentrate that mixes easily with water and applies evenly, which helps cover surfaces thoroughly. Although it’s not specifically labeled for scorpions, its broad-spectrum action and fast knockdown ability may help reduce scorpion activity if they share habitats with the targeted pests.

The insecticide is noted for its residual effect, meaning it continues to work for a while after application, making it suitable for both indoor and outdoor use, such as around foundations, doorways, and patios. This residual action is important for ongoing pest control without needing very frequent reapplications. Safety-wise, it has a low odor, which is more pleasant for indoor use, but as with any insecticide, careful handling and following label instructions are necessary to reduce toxicity risks to people and pets.

The application method involves diluting the concentrate in water and spraying it on affected areas, which allows for flexible use but requires proper equipment like a sprayer. Users appreciate the product’s efficiency since a small amount covers large areas, making it cost-effective for home pest control programs. Tempo SC Ultra offers strong residual control and ease of use against many crawling insects, but its performance on scorpions is less certain.