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Like many animals, gophers are bothered by strong scents. Peppermint oil, eucalyptus oil,  and coffee grounds can be used as deterrents against these pests. Similarly, you can try planting lavender, rosemary, sage, geraniums, or pine trees, as these plants all have strong smells that can ward away gophers. While it may be less pleasant to work with, coyote urine scares gophers by tricking the pests into thinking your yard is a predator hot spot.

Spider mites hate high humidity, strong air circulation, and potent smells like peppermint oil. Utilizing these factors can help deter spider mites so that they don’t feast on your plant leaves and inhibit growth. If you try these methods and spider mites still won’t leave, it’s time to hire a professional pest control service to tackle the task.

Roaches have a strong sense of smell and are repelled by a variety of potent aromas. Scents that can help deter them include citrus (such as lemon and orange), herbs like peppermint, mint, basil, thyme, and oregano, spices like bay leaves, cinnamon, clove, and garlic, as well as lavender, eucalyptus, citronella, tea tree oil, and vinegar.

You can use these scents in several ways to create an unwelcoming environment for roaches:

• Plants: Place mint or lavender plants in your home or garden.

• Powders and Leaves: Sprinkle garlic powder or place crushed bay leaves and citrus peels in high-risk areas like kitchens, bathrooms, and entry points.

• Sprays: Create a diluted solution with scents like lemon or vinegar to spray in your home. These can also be used in cleaning products or as room fresheners.

• Essential Oils: While essential oils of these scents can be used, be cautious as they can be toxic to pets if inhaled.

It is important to note that while these smells can help keep roaches away, they typically do not kill them and may not be enough to drive out an existing infestation entirely. For best results, combine these scent-based deterrents with regular cleaning. Be sure to clean up all food spills, crumbs, and dirty dishes promptly, and keep trash cans covered with a tight-fitting lid to remove potential food sources.

Anecdotal evidence suggests coffee grounds can keep chipmunks away. Sprinkle them throughout your garden, yard, and plants to help deter them. As an added bonus, coffee grounds can help keep the slugs away, and they’re great for acid-loving plants such as hydrangeas, azaleas, and rhododendrons.