4 Best Mosquito Killer Spray

In this post, we will feature 4 of the best mosquito killer sprays in the market today (there are many mosquito repellent too but this article will focus on sprays that goes for the kill).

When it comes to mosquito killers, there are lots of options to choose from – Foggers, trap zappers, swing zapper, propane traps, and sprays. Based on the situation at hand, one solution might be better than others.

While mosquito traps offer long-term relief and repellents can keep the mozzies away for a limited time, mosquito killer sprays offer instant results by clearing a specific area within minutes.

[May: There’s no 100% results but sprays do kill or drive away the bugs almost immediately. If you are still hanging out in the area treated, consider applying mosquito repellent sprays for double protection.]

Pros and Cons of Mosquito Killer Sprays

Pros: Cheap and easy to apply. Offers (almost) immediate results
Cons: Can be messy. Can be harmful to humans and pets.


Spectracide HG-95830 Triazicide Killer Spray Check Price
2Ortho Bug B Gon Insect Killer Spray Check Price
3Black Flag Propane Mosquito Fogger Check Price
4Cutter Backyard Bug Control Fogger Check Price

Here are the 4 best mosquito killer sprays:

1) Spectracide HG-95830 Triazicide Killer Spray

The Spectracide HG-95830 Triazicide Spray is designed to be used outdoors (i.e. lawns & backyard). It is not the strongest product on the market (keep reading for alternatives) but is a great option with a balance between protection, side effects and environmental impact.

To use, simply attach the ready-to-spray bottle to a hose and fire away.

It uses Gamma-Cyhalothrin as the active ingredient which interacts with the bug’s nervous system upon contact (as such, be sure to limit your exposure and keep it away from children and pets)

  • Effective up to 3 months
  • Kills over 200 insects (i.e. mosquitoes, spiders, ants, fleas)
  • Quick results
  • Friendly on plants
  • Requires hose to apply

Note: Avoid your pond areas where there are fishes and turtles. Use mosquito pellets instead.

2) Ortho Bug B Gon Insect Killer Spray

The Ortho Bug B Gon Sprayer is designed for outdoor use (in lawn, over ornamentals, trees & flowers, vegetable gardens and around home foundations).

It uses active ingredient Bifenthrin which lasts a bit shorter in comparison to products with Cyhalothrin (like The Spectracide Triazicide spray), resulting in a need reapply more often.

On top of getting rid of the mozzies, this product also takes pride in its ability to kill ants, flea, ticks, spiders, Japanese beetles, gnat, cutworms and stink bugs.

  • Effective for up to 2 months
  • Treats up to 5,300 sq. ft. coverage
  • Kills other insects as well (235 listed ones)
  • 32 ounces (concentrate results in 30-40 gallons)
  • Content of product burns when in contact with skin
Tips: Use rubber gloves and shoes if possible and be sure to tighten hose after use to avoid spray content from dripping on your hands and feet.

[May: With 32 ounces, our friend is able to apply spray on whole of her back yard and still have about a quarter of bottle left.]

3) Black Flag 190095 Propane Mosquito Fogger

This propane mosquito fogger by Black Flag is a relatively “heavy duty” fogger spray designed for outdoor use. This portable product is also used by professionals and is featured in our Best Mosquito Killer round-up post too.

The fogger can cover up to 5,000 sq ft of outdoor area in about 10 mins at full capacity and every quart of the insecticide can treat up to 1/2 acre of land area!

No electricity or pump is required as It is propane-powered.

When operating the fogger and traeting the area, it is essential to put on protective gloves, health mask and be sure to wait at least 10 mins to allow fog treatment to clear before entering treated space or area.

  • Easy to apply
  • Effective for up to six hours
  • Portable and propane-powered
  • Produces a thick fog fast
  • Covers up to 5000 sq ft
  • Kills most winged and biting pests
  • Propane tanks sold separately

>> Recommended Insecticides:
Black Flag 190255 Insecticide for Fogging
Repel 190392 Fogging Insecticide

>> Buy Propane here: Bernzomatic Cylinder

4) Cutter Backyard Bug Control Outdoor Fogger

The Cutter Backyard Fogger is designed for outdoor use. It’s available in bigger size version, the compact version featured is ideal for all kinds of outdoor trips especially in situations when you’re out hiking or camping (treat the area around the tent).

One bottle of the compact version can last between two to three days out in the woods (Tip: be sure to combine the spray with Mosquito coil and repellents).

It not only eliminates mosquitoes but other nasty pests like flying moths, gnats, ants and firebrats.

  • Lightweight and compact
  • Works on mosquitoes, spiders, ants, fleas, ticks
  • Effective for several days (against mosquitoes)
  • Strong might be too strong for some

Things To Note When Using Mozzie Spray
  • Be sure to aim before applying the mosquito sprays to avoid killing “innocent” creatures of nature (i.e. the praying mantis, grasshopper, earthworms, or even fishes and birds).
  • More is not always better. Spraying at the right spots and increasing the frequency of reapplication is better than one single “heavy” application.
  • Always wash hands after use of spray before doing anything else.
  • Always shake container well before use


As compared to other types of mosquito killer methods, mosquito killer sprays offers comparable performances on top of it’s straightforward application and instant results. As such, it remains one of a “must-have” household item to fight the blood-sucking skeeters.

For maximum protection against mosquito bites, be sure to apply mosquito repellent sprays on your body during outdoor activities.

Feel free to leave a comment to let us know which of these products have you tried and whether they worked for you. Also, if you have tried any effective mosquito killer sprays in the past that we missed in the list!