Ortho Quick Dry Bug Killer Spray, 14-Ounce

Last updated: October 12, 2021

Ortho Quick Dry Bug Killer Spray, 14-Ounce

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We looked at the top Bug Killer Sprays and dug through the reviews from some of the most popular review sites. Through this analysis, we've determined the best Bug Killer Spray you should buy.

Overall Take

Ortho’s spray works at any angle, including upside down. This long-lasting, no-fume spray kills existing indoor insects and leaves a residual barrier to keep out spiders, roaches and ants.

In our analysis, the Ortho Quick Dry Bug Killer Spray, 14-Ounce placed 2nd when we looked at the top 6 products in the category. For the full ranking, see below.

From The Manufacturer

Start to kill indoor ants, roaches, and spiders fast with Ortho Home Defense Max Ant, Roach & Spider1 spray. This quick-drying spray produces no fumes or residue, meaning it can be used in any room of your house, including the kitchen. The sprayer works when used at any angle, even upside down, so you can reach into the cracks, crevices, and corners where insects hide. Ortho Home Defense Max Ant, Roach & Spider1 spray kills ants, cockroaches, beetles and spiders. Also, prevent ants, roaches and spiders indoors on non-porous surfaces for up to 1 year!


Bug sprays can be designed to keep bugs away (repellents) or to kill them. However, some sprays can do both. The types of repellents used on humans and pets are different from ones made to keep insects away from homes and outdoor spaces, though.

Bug killing sprays are considered to be insecticides. These products kill insects on contact, in most cases. While some are used for spot treatments and last for one application, others can create barriers or perimeters that last for weeks or months.

Bug killing sprays are generally made from chemicals called pyrethroids; these man-made pesticides are also found in other commercial products like pet sprays and pet shampoos. Common pyrethroids found in bug killing sprays include sumithrin, resmethrin and permethrin.

These chemicals are used in very low levels, but anyone who is accidentally exposed to an extremely large amount could have symptoms like nausea, headache, diarrhea and dizziness. Always follow the label directions when using these sprays.

Indoor spot treatment bug killer sprays work well on roaches, flies, ants, bedbugs and fleas, but if you want to keep them from coming back, look for products that have barrier protection.

There are also indoor foggers; these create fine mists that let the insecticide penetrate under baseboards and into crevices to kill insects that are not easily visible. Many of these sprays come in gallon-sized containers with attached spray wands. Note that you can use exterior foggers outside your house, but do not use these indoors.

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