Ortho Insect Killer Concentrate 32 oz — Dilutable Indoor & Perimeter Barrier, Long-Lasting Protection

Ortho Home Defense Insect Killer for Indoor & Perimeter Concentrate (32 oz) is a water-dilutable pest control formula that creates a long-lasting chemical barrier against common household insects when applied with a tank sprayer.

This concentrated insecticide is designed for do-it-yourself use around homes: dilute the bottle to make up to four gallons of spray and treat indoors on non-porous surfaces or outdoors around foundations, patios, decks and entry points. The product targets a wide range of crawling pests and can be used as both a preventative measure and a response after you spot insect activity. It dries quickly, is formulated to be non-staining and low-odor, and offers extended protection against several common invaders when applied as directed.

How does this concentrate help keep bugs out of my house?

When mixed and applied correctly, the formula leaves a residual chemical barrier on treated surfaces that deters and eliminates listed insects that cross it. Indoor applications on non-porous areas can provide protection for up to 12 months against ants, roaches and spiders, reducing the need for frequent re-treatment. Outdoor perimeter treatments reduce the chance of pests entering through gaps around foundations, doors and windows.

• Mix 32 oz. concentrate into water to produce up to 4 gallons of spray for broad coverage.
• Apply along baseboards, door thresholds and window sills for indoor barrier protection.
• Treat foundation perimeters, patios and deck edges to block outdoor entry routes.

Which pests does Ortho Home Defense target?

The product is labeled to control a broad spectrum of common household crawlers, including ants, cockroaches and spiders, plus fleas, ticks, scorpions, beetles, silverfish, centipedes and millipedes. Always consult the printed label for the complete list of covered species and site-specific directions. Use only on the surfaces and areas indicated to ensure safe and effective results.

• Kills listed indoor invaders like ants, roaches and spiders on contact and via residual activity.
• Also effective against outdoor pests such as ticks, fleas and scorpions when applied to perimeter areas.
• Refer to the product label for exact species, dosages and surface restrictions.

How should I mix and apply the concentrate safely?

This is a concentrate that must be diluted with water prior to use; pour the recommended amount into a tank sprayer and mix according to the label directions. Wear appropriate personal protective equipment when handling and avoid applying to porous indoor surfaces where residue longevity isn’t guaranteed. Allow treated surfaces to dry before re-entering or replacing items to minimize contact with wet spray.

• Use only in a tank sprayer; follow dilution instructions on the label for desired coverage.
• Wear gloves and eye protection and follow all safety and ventilation guidance on the label.
• Do not treat food preparation surfaces or porous indoor materials unless specified.

What kind of coverage and longevity can I expect from one bottle?

A single 32 oz. container dilutes to about four gallons of finished spray, sufficient for multiple indoor and outdoor treatments depending on the size of the area. Residual protection indoors on non-porous surfaces is listed as up to 12 months for specific pests; outdoor longevity will vary with weather and surface type. Reapply according to activity levels, label intervals and after heavy rainfall on outdoor treatments.

• 32 oz. concentrate yields up to 4 gallons of insecticide spray for large coverage.
• Up to 12 months residual on specified non-porous indoor surfaces for some pests.
• Outdoor reapplication needed after heavy rain or as pest activity returns.

Who this is for: Ortho Home Defense Concentrate is suited to homeowners and renters who prefer DIY perimeter and spot treatments, property managers maintaining seasonal pest control, and anyone wanting a concentrated product that stretches to cover multiple applications. It is intended for people comfortable following label directions, using a tank sprayer, and taking standard safety precautions during mixing and application.