Best Flea Killer for Yard

Last Updated on September 1, 2020

Are you looking for the best flea killer for your yard?

I have used a number of flea killers over the years and not all are created equal. I want an effective flea killer that is also safe to use where my family roams. With this in mind I have reviewed the top options available and after reading this article you will know my recommendations.

Check the quick list below for links to customer reviews and prices for my best flea killer for yard picks, or read on for the full review:

  1. Wondercide Ready to Spray Natural Flea and Tick Yard Spray
  2. Martin’s Multi-Purpose Insecticide and Flea Killer
  3. Bayer Suspend SC Insecticide
  4. Demon Max Insecticide Cypermethrin
  5. Black Flag Extreme Flea Killer Plus Growth Regulator

Dealing with fleas in the yard is really frustrating, especially if you have noticed that they are finding their way into your home, as well. You can make sure that you eradicate these pests without putting your family at risk or in danger when you take time to choose the best flea killer for yard.

Selecting the Best Flea Killer for Yard

The first thing that you have to decide when shopping for flea killer for your yard is whether you want to choose one that is eco-friendly and natural or if you have a bad infestation and need something that is chemically-based.

I also recommend considering whether or not you have fleas in your home, as well. Some treatment products can only be used outside, while others are safe for use both inside and outside the home. If you have a major infestation that has taken over your home as well as your yard, then you will want to make sure that you choose a product that can be used in both places.

Benefits of Quality Flea Killer

The most obvious advantage of treating any fleas that you have in your yard is that they won’t be able to find their way into your home, where they can bite and bother your family. It can be easy for some homeowners to ignore the fact that they have fleas outside, but doing so is never a good idea. It’s a much better idea to treat these fleas right away so that you won’t have to worry about them biting any pets or family members.

Additionally, many flea killers do more than kill fleas, and they are actually formulated to eradicate other pests in your yard. If you are dealing with a lot of different pests, then you will want to consider looking for a treatment product that is broad spectrum and can handle more than just fleas.

Attributes to Consider

One thing to consider is whether you want to take time to mix up your flea killer with water or if you would prefer to simply be able to spray it onto your lawn. Some flea killers come in bottles that allow for immediate application either via a pump handle or by attaching to a hose. Others need to be mixed to a certain concentration with water before they are applied.

If you do choose a product that is ready to use, then you can decrease the amount of time that you spend preparing to treat your yard. On the other hand, when you mix up your own concentration, then you will be able to make it stronger or weaker, depending on your needs.

Another attribute to consider is whether the product will stain clothing or fabric. If you are not careful when applying your flea killer, you can easily ruin your clothing, so I always recommend that homeowners take this into consideration when choosing a product and deciding what to wear during application.

How to Use Flea Killer for Yard

The first thing that you need to do before treating your yard for fleas is remove any debris that may house these and other pests. This also makes it easier for you to ensure that you fully treat all areas of the yard. Any clutter, such as wood piles, will create a great hiding place for fleas.

Next, you need to make sure that you have the right concentration of your product and that you know how much you will need to treat your space. You don’t want to use too much flea killer, nor do you want to use too little.

Finally, make sure that you follow-up with an additional treatment of your flea killer, if necessary. Many products require a second application to achieve the best results.

Precautions When Using Flea Killer for Yard

Before you use this product, you want to make sure that you are prepared and protected. Any flea killer that has dangerous chemicals in it can make you sick. I recommend that you use safety goggles and wear gloves and long pants and sleeves so that you don’t have to worry about skin irritation. Additionally, make sure that you do not accidentally breathe in the product during application.

If you do ingest any flea killer by accident, then you need to get to the hospital right away so that you can get treatment.

Additionally, make sure that you choose a product that is safe for use around children and pets, if you have any. Some products can be sprayed and then played on right away, while others require you to allow the product to soak in.

Never use a flea killer that is rated for the outdoors inside your home. This can put you and your whole family at risk of getting sick and can be a major skin, nose, and eye irritant.

Top Rated Flea Killer for Yards

It is incredibly frustrating when fleas take over your yard. But a quality flea killer can knock the infestation out. When reviewing the most popular flea killer options, I was concerned with performance and safety and my picks were the best in both of these realms.

Wondercide Ready to Spray Natural Flea and Tick Yard Spray

Homeowners who are in the market for a natural way to get rid of pests from their yard will appreciate this eco-friendly option. It’s safe to use around children and pets and can be sprayed and then played on immediately without any waiting. This is great for a busy family who doesn’t want to give up their time playing in the yard. It treats scorpions, roaches, chiggers, chinch bugs, ants, fleas, ticks, and Japanese beetles.


  • Doesn’t include any harsh chemicals
  • Made from 100% naturally derived products and has zero wait time
  • Treats the entire lifecycle of pests
  • Great for up to 5,000 square feet of area


  • Can attract carpenter bees
  • Can be too thick to easily spray

Martin’s Multi-Purpose Insecticide and Flea Killer

Homeowners who are looking for a fast and easy way to get rid of pests at their home will appreciate this product. It is 10% permethrin and is easy to dilute according to your needs. Because it can be left stronger to treat major infestations or for a first application or diluted to handle smaller infestations, it’s a great option for use not only in yards, but also around cattle and poultry.


  • Great for use in both indoor and outdoor locations
  • Effective against a wide variety of different pests
  • Easy to dilute for both severe and normal insect infestations
  • Works quickly to rid a yard of fleas and pests


  • Not allowed for use by personal customers in NY
  • Tends to smell very strong and can stain clothing

Bayer Suspend SC Insecticide

It’s easy to use this product and mix up the correct amount of solution. Since you can adjust how much product you use to treat individual types of pests, most homeowners can easily target the pest they are dealing with. Additionally, it won’t damage fabric, plastic, paint, or other surfaces in or around your home and can be used in both commercial and residential locations.


  • One pint can make up to 64 gallons of this solution
  • Easily controls more than 50 different types of pests
  • Safe to use both indoors and outdoors
  • Doesn’t have a strong odor or leave a visible residue


  • Not great for treating fleas and roaches
  • Not ideal for treating heavy infestations

Demon Max Insecticide Cypermethrin

This product is very easy to mix up, which means that homeowners can easily make the amount that they need for spraying around their home. It’s perfect for use both in and outside of the home, which is great for tackling infestations that have gotten out of control. While it does tend to have a stronger odor than other options on the market, this makes it easy to tell where in the home and yard has been treated.


  • Offers a low concentration of cypermethrin
  • Makes up to 32 gallons of finished spray
  • Doesn’t leach into water supplies
  • Provides residual protection that will last for a long time


  • Can easily leak during shipping
  • Not great for stopping hornets from nesting on a home

Black Flag Extreme Flea Killer Plus Growth Regulator

This is a great product that can be used to treat burgeoning flea problems as well as more advanced issues. Because it can be sprayed in the house without problems, it’s great for taking care of fleas that have embedded in the carpet and furniture without having to hire a professional to clean these items in the home. It can kill fleas, their eggs and larvae, and even ticks.


  • Can be used on baseboards, upholstery, rugs, and carpets
  • Great for killing fleas in all stages of their lifecycle
  • One gallon can easily treat 750 square feet in a home
  • Offers a money-back guarantee


  • Tends to smell really bad
  • Best used inside, not outside the home

For more home improvement guides and tips read these articles:

I believe in keeping things simple when treating my yard for pests and also making sure that my family can play on the grass. For those reasons, I recommend the Wondercide Ready-to-Spray Natural Flea and Tick Yard Spray. Even if you have a lot of other pests to treat, such as mosquitos, this will do a great job eradicating these insects. I love that it hooks up quickly to your hose so that you start treatment without having to worry about concentrations, and that kids and pets can play on the grass right away. Additionally, this container will treat up to 5,000 square feet.

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