Amdro Ant Killer Review

5 minutes to read | Updated for 2018

Last update on 2018-06-18 / Affiliate links / Images from Amazon Product Advertising API

Bottom Line

AMDRO is an effective yet inexpensive solution to eradicate ant infestations that we strongly recommend. Regardless of the type of ant species, you are experiencing problems with, this product will more than likely tackle your infestation with complete effectiveness. Not only that, you can do so in a far more environmentally-friendly way than using many alternative outdoor ant-killing products currently on the market.

You can expect to rid your home of your ants in one to two weeks. If the ants persist after this time, you can re-apply the economical product to keep any returning ants at bay. If you are not completely satisfied, then you can simply request a money-back refund on the AMDRO website, where you can also find loads of useful information on all types of pests and solutions.


  • Effective against 15 different ant species
  • Kills entire colony over time
  • Use with or without bait stations
  • Excellent customer service
  • Economical


  • Keep away from animals and vegetable garden
  • More effective in hotter climates
  • Requires several days for be effective

When you find yourself with an ant infestation—all you want to do is get rid of these pesky critters, but with so many products to choose from it can be confusing. AMDRO Ant Block is a popular product which is relatively inexpensive, so let’s take a look in more detail.

AMDRO is a key player when it comes to pest control. In fact, the product being reviewed in this guide was first launched in 1978. AMDRO is a name that you can trust in terms of advice and products when it comes to any kind of pest problem—large or small.

How Does AMDRO Ant Killer Work?

Ant killer products generally have a similar method of producing results; however, one of the differences can be the active ingredient that is used in the product. In the case of AMDRO products, they nearly all contain the active ingredient: Hydramethylnon.

This works by shutting down the mitochondrial energy production of the ant. The insects will become lethargic and unable to perform life-sustaining functions such as feeding and death occurs between 24 and 72 hours. The slow-acting poison has the desired effect of passing the poison onto the rest of the colony.

Other ants in the colony will be affected by the Hydramethylnon either by eating the poison-laced bait that their comrade brought to the colony or simply by being in contact with the dying insect. This method of spreading slow-acting poison has proven to be highly effective—you just need to be a little patient. Don’t expect the instant results of an ant spray killer, for example. If you need to kill a whole colony, this is exactly the method you need to use.

AMDRO Works on 15 Different Ant Species

The most common type of ant that you are likely to encounter invading your yard and home is the Carpenter ant; however, there are several ant species that may affect our American homes. This is where AMDRO Ant Block comes in. While it specializes in killing Carpenter ants, it also kills several other species including:

  • Thief ants
  • Pavement Ants
  • Pharaoh ants
  • Odorous house ants
  • Ghost Ants
  • Harvester Ants
  • Texas leaf-cutting ants
  • Fire ants
  • Crazy Ants
  • Field ants
  • Acrobat Ants
  • Argentine ants
  • Big-headed ants
  • Cornfield ants

Key Features

You Only Need to Apply AMDRO Ant Killer Once

AMDRO ant killer is super easy to use and all you have to do is sprinkle the granules around the perimeter of the home. Then, you can sit back and reap the rewards. The ants will do the rest for you by eating the bait and taking some back to the colony. The product is extremely effective and the colony will die within a week or so.

Multiple Uses

The product is often sold in 24 oz. bottles that you can pick up inexpensively. What’s more, this is enough to treat 1080 linear square feet, so that will be enough for several applications for most people’s homes. Should you need to use the product again, it is equally effective as results have proved that on very few occasions that the ants have made the connection between the bait and the demise of the colony.

Environmentally-Friendly Product

The active ingredient found in most AMDRO products is Hydramethylnon, which has been found to be less damaging to the environment than active ingredients found in other insecticides. The product breaks down, especially when in contact with water and produces very little by-product.

Customer Service

The company that manufactures AMDRO products is Ambrands and the people there know that their product really works and kills all ants. When buying any product at all, it is great to buy from a company that is so confident that their product works that they offer a full money-back refund. It really is a risk-free purchase and that is what you get with this product AMDRO product.

If you have any issues, simply contact AMDRO and a sales rep will happily answer your questions and offer advice and if you are still not satisfied, you can choose a full refund. What’s there to lose? In case there is any problem, you can fill out a form on Amdro website and even call them directly at a 800 number found on their website.


AMDRO has a variety of products whether you want to use a product inside or outside or whether you wish to target a specific species of ant such as Fire ants. You can pick up the outdoor granules in a 24 oz. bottle but it is cheaper if you buy in larger quantities. If you need bait stations to use both inside and outside, you can pick up a pack that contains six baited stations with poison for less than $6.


As with virtually all insecticides, these toxic substances should be kept well away from children and pets. After sprinkling the bait around your home, leave it for a few hours before allowing your pets back in the yard. Monitor them so that they don’t try to lick or eat any of the bait stations.


The active ingredient in AMDRO—Hydramethylnon—is not a long-lasting ingredient like you can find in other products. Bifenthrin is an active ingredient found in other ant killers, which lasts longer; however, it is not considered to be as environmentally-friendly. Amdro offers a compromise between eradicating ants and best preserving the environment of your yard. It does, however, mean that you will need to reapply Amdro regularly unlike other products containing Bifenthrin.

This product works best when it is applied to dry ground. If you have an ant infestation and you rarely get a dry week or so, then this product is not going to be effective on the wet ground.

The active ingredient works slightly slower than other active ingredients used in competitive products.

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