4.2 out of 5 Customer Rating
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Ortho® Home Defense® Mosquito Killer with Essential Oils Ready-To-Spray



  • Ortho Home Defense Mosquito Killer with Essential Oils kills mosquitoes quickly
  • Use without worry around kids and pets (when used as directed)
  • Kill mosquitoes in the yard and repel others easily by attaching to a hose, turning on the water, and spraying
  • Works two ways--by killing mosquitoes on contact and repelling others to keep your yard mosquito-free
  • Each bottle treats up to 5,000 sq ft

Specs and Details

Active Ingredients

  • 7.50% Sodium Lauryl Sulfate, 3.00% Eugenol, 1.50% Lemongrass Oil, 1.50% Rosemary Oil, 0.25% Sesame Oil


  • Always use good safety practices when using this product, such as avoiding contact with eyes and skin and keeping out of reach of children and pets. If eye or skin contact occurs, flush thoroughly with water.

Disposal Method

  • When container is empty, place in trash or offer for recycling if available.

Product Label

  • This is not the product label. Always read and follow the product label before use.
  • Download Label
  • Safety Data Sheets can be found at scottsmsds.com


Reclaim your yard this summer with the fast acting, long lasting Ortho Home Defense Mosquito Killer with Essential Oils. It quickly kills mosquitoes in your yard and repels others in the area for up to 12 hours. For the best results, apply at dawn or dusk. Application is easy, just connect a hose to the attached sprayer, turn on the water and spray. Safe for use around kids and pets, Ortho Home Defense Mosquito Killer with Essential Oils helps you recapture the enjoyment of being outside.

Step by Step Instructions

How to Use

Shake well before using.

  • 1. CONNECT: Connect sprayer to hose. Turn on water.
  • 2. SPRAY: Extend the hose to the farthest point in the lawn or garden away from the water faucet. This will minimize walking on the treated area. To begin spraying, point nozzle in the direction you want to spray. Slide thumb activation switch forward to ON position.
  • 3. FINISH: To STOP spraying, slide thumb activation switch backward to OFF position. Turn off water. Relieve water pressure by sliding thumb switch to WATER position until water slows to a drip. Then, slide switch back to OFF position. Disconnect sprayer from hose.
  • When spraying landscaping (trees, shrubs & flowers): Apply as a thorough foliar spray. Spray into trees high enough to cover lower limbs.
  • When spraying lawns: Do not aim toward ground. Apply over entire lawn as a thorough coverage spray.
  • Thoroughly spray the yard, landscape, and around perimeter of patios or decks to ensure full protection.
  • Applying according to these directions will kill mosquitoes and also repel mosquitoes for up to 12 hours.

When and Where to Use

Where Not to Use

  • Do not spray blooms directly, and avoid sensitive plants/flowers.
  • Do not apply directly to new transplants, newly rooted cuttings,
  • or drought stressed plants or lawns.
  • Not approved for use on edibles.

Where to Use

  • Control mosquitoes in your lawn, yard, and patio. Apply on flowers, trees, shrubs, ornamentals, lawns, and around home perimeter.

When to Apply

  • Use before spending time in your outdoor space, or whenever mosquitoes are present.
  • Apply at dawn or dusk when mosquitoes tend to be the most active and accessible to spray. Apply on a dry day, and do not use if rain is expected within 24 hours. If temperatures exceed 85° F, spray in early morning or early evening when it is cooler.

How Often to Apply

  • Reapply after heavy rainfall or as necessary to control mosquitoes.

Special Instructions

Watering Tips

  • Delay watering lawn for 24 hours after application. Apply in dry conditions.

Using With Other Products

  • Works great with Ortho Home Defense Perimeter Protection Repellant Candles, which protect smaller areas.

Frequently Asked Questions

Our Guarantee

If for any reason you, the consumer, are not satisfied with this product, mail us proof of purchase to obtain a full refund of your purchase price

What It Controls

Bugs Controlled

  • The strong essential oil formula kills mosquitoes by contact and repels mosquitos for up to 12 hours.

Kids & Pets

Safe to use around kids and pets when used as directed.

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