When deer get into your yard they are generally looking for something to eat.
While some of the time this might not matter to you some have flowers and vegetable gardens they have worked hard with that they don't want to be eaten by deer.
There are a wide variety of deer repellents on the market but do electronic deer repellents really work? What is good about electronic repellents? The positive part of electronic repellents are that you don't have to reapply the repellent over and over and you don't have to put up with the raunchy odors in your yard.
The same ones that deer find awful you will too.
Some electronic deer repellents actually give a shock to the deer in attempts to scare off the deer.
While this is fairly effective, some find it cruel and in some areas you need special permission to use this type of device.
It's not really the best choice as it's not the most humane option available.
Other electronic repellents use ultrasonic sound to repel the deer.
The idea is that a loud burst of sound that you can't hear will be heard by the deer when within range.
These work fairly well but if you have pets like dogs this will end up annoying your pets.
The best option are motion activated sprinklers.
These are devices that simply shoot a small burst of water towards the deer when it gets within range scaring them off.
Compared to an electric shock, this is a much more humane method in dealing with deer in your yard and garden.