Ortho Landscape & Lawn Bug Killer Spray, 32-Ounce

Last updated date: August 31, 2021

DWYM Score

8.6

Ortho Landscape & Lawn Bug Killer Spray, 32-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.

Update as September 13, 2021:
Checkout The Best Bug Killer Spray for a detailed review of all the top bug killer sprays.

Overall Take


In our analysis, the Ortho Ortho Landscape & Lawn Bug Killer Spray, 32-Ounce placed 6th when we looked at the top 6 products in the category. For the full ranking, see below.

From The Manufacturer

Ortho Home Defense Insect Killer for Lawn & Landscape Ready-To-Spray kills bugs outside before they come inside! It quickly kills up to 235 kinds of listed bugs, while creating a bug barrier to stop them before they enter your home. The bug spray is non-staining and odor-free and starts killing outdoor insects within minutes. Treat up to 5,300 sq. ft. and protect against ants, fleas, spiders (excluding black widow) and American dog ticks for up to 3 months!

An Overview On Bug Killer Sprays

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.

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 form 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.

The Bug Killer Spray Buying Guide

  • Keep children and pets away when insecticides are being applied and until the product has dried. Be sure to read the label for guidelines.
  • Do not use foggers unless absolutely necessary.
  • Only use insecticides that are approved for in-home use. Do not use outdoor pesticides inside your home.
  • Always keep bug spray killer in its original container. Never transfer it to another one.
  • Handling these chemicals more than needed is not recommended.
  • Do not mix these products with any other chemicals.
  • Store insecticides where they cannot be reached by children or pets.