Best Sprays to Kill Flies

7 minutes to read | Updated for 2018

Flies can spread illnesses to humans more readily than most people might expect.

Flies feed on both human food as well as germy and rotten material. The common house fly picks up disease-causing germs as they feast on garbage, rotting objects, and feces.

Those microbes that remain on the outside of a fly might survive for a handful of hours. However, viruses and bacteria that flies ingest may persist in the fly’s gut for several days. Transmission often happens when a fly regurgitates on spots people touch or directly on our food. This is why we’ve selected our favorite sprays to kill germy flies (and other insects) for your specific pest-eradication needs.

Hot Shot 5416 AC1686, Pack of 1
Eco Defense Organic Home Pest Control Spray (16 oz)
Harris Home Insect Killer, Liquid Gallon Spray with Odorless and Non Staining Residual Formula -...
Hot Shot 5416 AC1686, Pack of 1
Eco Defense Organic Home Pest Control Spray (16 oz)
Harris Home Insect Killer, Liquid Gallon Spray with Odorless and Non Staining Residual Formula -...
Best For
Best Overall
Best All-Natural
Best for Large Areas
Price
$8.50
$19.99
$19.99
Our Verdict
We love this spray as an overall fly and insect killer for the effective formula, ease of use, and low price.
The high ratings, non-toxic formula, and wide variety of uses make this our favorite all-natural spray.
The value of this highly effective insect killer and long-lasting formula make this our favorite for applying around home perimeters and large areas.
Hot Shot 5416 AC1686, Pack of 1
Hot Shot 5416 AC1686, Pack of 1
Best For
Best Overall
Price
$8.50
Our Verdict
We love this spray as an overall fly and insect killer for the effective formula, ease of use, and low price.
Eco Defense Organic Home Pest Control Spray (16 oz)
Eco Defense Organic Home Pest Control Spray (16 oz)
Best For
Best All-Natural
Price
$19.99
Our Verdict
The high ratings, non-toxic formula, and wide variety of uses make this our favorite all-natural spray.
Harris Home Insect Killer, Liquid Gallon Spray with Odorless and Non Staining Residual Formula -...
Harris Home Insect Killer, Liquid Gallon Spray with Odorless and Non Staining Residual Formula -...
Best For
Best for Large Areas
Price
$19.99
Our Verdict
The value of this highly effective insect killer and long-lasting formula make this our favorite for applying around home perimeters and large areas.

Last update on 2018-11-13 / Affiliate links / Images from Amazon Product Advertising API

Product Features

  • Use caution not to inhale while spraying
  • Wear gloves during use
  • Under $10 per can
  • One canister contains 15 ounces
  • Also available in a pack of six
  • Active ingredients are permethrin and tetramethrin

PRO

  • Kills bugs and insects on contact
  • Continues to kill on surfaces for up for four weeks
  • Water-based in an easy-spray can
  • Non-staining
  • Leaves no oily residue
  • Low price

CON

  • Some complaints about ineffectiveness

Product Features

  • On bottle contains 16 ounces
  • Around $20 per bottle
  • Can be used as an insect prevention spray
  • No aerosol can to worry over
  • Also available in 32-ounce and one-gallon sizes
  • Active ingredients are sodium lauryl sulfate, geranium oil, and peppermint oil

PRO

  • Non-toxic, safe around children and pets
  • Environmentally friendly
  • Can be sprayed directly on flies and as a perimeter guard around your home
  • Light essential oil scent
  • Can be spray near bedding and in kitchens
  • Comes with a money back guarantee
  • Highly-rated

CON

  • Some people found it ineffective on spiders and ants
  • A little pricey

Product Features

  • Continues to work for up to one year
  • Around $20 per container
  • The container is one gallon, 128 fluid ounces
  • Active ingredient is deltamethrin

PRO

  • Kills a wide variety of bugs and insects
  • Lasts on surfaces for up to 12 months
  • Outstanding value for the amount of product
  • Odorless
  • Non-staining formula
  • Well-rated for effectiveness
  • Comes with a hose sprayer

CON

  • Shipping issues and hose/sprayer problems for some customers
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