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Do Ultrasonic Deer Repellers Work?

 Last updated by Jesse on 03-10-2024

When you start shopping for the best ultrasonic deer repeller, you may be asking yourself  “do ultrasonic deer repellers work”. Don’t worry, we’ve got the answers for you.

If you’ve been looking at ways to keep deer out of your garden without hurting them, you’ve likely come across ultrasonic deer repellers. When you do your research and pick the right one, it can easily become your best tool.

Deer are a beautiful part of nature. Very few animals can match their docile elegance. However, when it comes to maintain and keeping a garden, deer can quickly become your number one enemy by making a feast out of the literal fruits of your labor.

Do ultrasonic deer repellers work?

Yes, ultrasonic deer repellers can be effective. However, it’s important to acknowledge that not all ultrasonic deer repellents work equally well. Deer possess a specific range of sound frequencies they are sensitive to.

Research indicates that deer are capable of discerning the origin of sounds and estimating their distance. Consequently, an effective ultrasonic deer repeller must be designed with these considerations in mind to successfully deter deer from encroaching on your yard or garden.

Ultrasonic deer repellents work by sending out a high-frequency sound whenever they detect movement. This means that when a deer walks in front of your ultrasonic repellent, it’ll give them a small scare that will discourage them from grazing in the area.

Benefits of using an ultrasonic deer repeller

  • Ultrasonic deer repellers are completely ethical and cruelty-free.
  • Ultrasonic repellers require little to no maintenance compared to other options such as deer scram.
  • They are effective on other types of wildlife such as skunks and rabbits as well.

Ways to keep deer out of your yard

1. Ultrasonic animal repeller

Bocianelli Animal Repeller, Raccoon Repellent Ultrasonic, Waterproof Motion Detection LED Flash Light, Solar Animal Repellent Ultrasonic Outdoor for Dogs Fox Rabbit Squirrels Coyote Cat Deterrent

  • Ability to emit high-frequency sound waves to deter animals
  • Waterproof design
  • Dual power source options (solar or battery)
  • Designed to be easy to install and can cover an area of up to 5,000 square feet

These devices can be used to protect gardens, yards, and other outdoor areas from animal damage. It emits high-frequency sound waves that are inaudible to humans but are supposed to be unpleasant for animals, causing them to stay away from the area.

Here are some places that people use these devices:

  • Gardens
  • Yards
  • Orchards
  • Vineyards
  • Flower beds
  • Vegetable patches

Of course, the effectiveness of the device may depend on a variety of factors, including the specific environment and the type of deer in the area. It may be necessary to experiment with different settings and placements in order to achieve the desired results.

Additionally, it’s worth noting that while this device may be a useful tool in deterring deer, it is not a foolproof solution and may need to be used in conjunction with other measures such as fencing or repellent sprays.

2. Enviro Pro Deer Scram Repellent

Enviro Pro 1006 Deer Scram Repellent Granular White Pail, 6 Pounds

Deer scram works by producing a smell that is unnoticeable to humans but unpleasant to deer. It discourages them from grazing on our plants while biodegrading into high nitrogen organic nutrients that will help your garden. The Enviro Pro deer scram covers a large surface area and won’t attract other pests such as flies or ants. It’s maintenance-free and only needs to be reapplied once it dissolves.

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Just be careful using scram if you’re already using fertilizers. While nitrogen is vital for healthy plant growth, too much can be harmful for the soil.

3. Coffee grounds

One of the best parts of a freshly brewed cup of coffee is the amazing smell that fills your home. However, while most people like the smell of coffee grounds, deer tend to be repelled by it, which is why it’s a great way to keep deer away.

Using coffee grounds as a deer repellent has a lot of benefits. First, you can save your own coffee grounds after every brewing, making it virtually cost-free. You can also reach out to your local coffee shops to see if they can collect some for you. It’s completely ethical and doesn’t harm the deer. Coffee grounds also work as a natural fertilizer, helping improve your garden wherever you decide to sprinkle them.

4. The right types of plants

Another ethical way to keep deer out of your yard is to plant certain plants and shrubs. These plants either taste bad to deer or having an unsavory texture that will help keep them from grazing. This can also boost the aesthetic appeal of your yard, making it a win-win situation.

Here are some of the top deer repellent plants you can add to your yard:

  • Figs
  • Clumping bamboo
  • Japanese yew plum
  • Spruce
  • Pine
  • Russian olive

Please note that, while these plants can repel deer, any deer that is hungry enough will still attempt to eat just about any plant. There are no plants that are 100% deer-proof, only plants that are deer-repellent or resistant.

While there are some plants that repel deer, you’ll also find some that attract deer. These plants – which include snowberries, most fruit trees, juniper, mock orange, and berry bushes – make up a large part of a deer’s diet, and they will encourage deer to graze in your garden.

Before adding or removing plants from your yard, make sure to do your research. Some plants may be an invasive species in your area. The best plants are those that are native and beneficial to local pollinators.

5. Barriers

When all else fails, you can always physically keep deer out of your yard. Building some type of barrier to enclose your yard will help keep out deer as well as other wildlife that could get into your garden. The most efficient barrier is a sturdy fence. This deer fence is perfect for surrounding a garden and keeping the deer out.

However, if you’re wanting to maintain a natural aesthetic while repelling deer, you can also plant a barrier of bushes using one of the shrubs mentioned above – boxwoods are a great thick hedge that repels deer. This will protect your yard while adding a touch of beauty.


So, do ultrasonic deer repellents work? They can, especially when paired with other repellent tactics like the ones we’ve listed above.

One of the best ways to keep deer out of your yard is to invest in a repeller such as the Aubnico ultrasonic deer repellent which combines high frequency noises with lighting. To make sure your repeller is always working its best, try relocating it at least once a month so that deer won’t get used to the sound’s origin. You can then add in secondary methods such as thoughtful flora and coffee grounds to completely secure your garden.

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