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Groundhogs have a strong aversion to powerful scents, including garlic, ammonia, vinegar, hot peppers like cayenne, and predator urine. Various herbs such as rosemary, lavender, basil, mint, sage, thyme, and oregano can also act as deterrents. You can strategically use these odors around your property by planting these crops near your garden and by the entrances to groundhog burrows. Commercially available repellents offer another option, and for best results, scent-based deterrents should be used alongside other preventive measures.

According to the Internet Center for Wildlife Damage Management, no frightening devices are proven effective for squirrel control. This is likely because the squirrels quickly become habituated to the noises. However, strobe lights show some promise, so motion-activated lighting could be an option worth considering as part of your integrated pest management strategy.

Some species of bees (not to mention hornets) are aggressive and dangerous to have in your walls. If they swarm in anger or defense, they could badly hurt people in your home. Other species of bees are largely harmless and many people live in close proximity to them.

Either way, bees making hives in your walls usually causes damage. It can contribute to moisture problems, and attract other pests. Those problems get even worse if honeycombs build up. So we strongly suggest you find a way to keep bees from taking up permanent residence.

Naturally occurring EPA-registered Bti products are an effective way to kill off mosquitoes at the larval stage. And, although they won’t wipe them out, there are lots of natural repellents that make your yard less attractive to mosquitoes. Try planting some marigolds, lemon thyme, or other plants they’ll steer clear of, light a citronella candle or two, or lay some bug-offensive cedar mulch.