Answer: To be honest, there are many home remedy deterrents such as hot pepper flakes and so on but in my experience they are not effective over time. In some instances a tall fence which also runs a distance underground is effective (although they may decide to climb it or tunnel under it) but the only definitive answer is to remove the animals. They can be trapped with a live trap and relocated, depending on local ordinances and restrictions. You might wish to call in a professional to do this because groundhogs are wild and unpredictable animals and can be very dangerous in addition to doing a lot of damage to your garden.
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