Crush garlic and chili powder together and spread it around the boundaries of your attic. You may even sprinkle it around the garden randomly near the crops. They will get irritated by the smell of garlic and leave your garden.
这个据说好 https://www.canadiantire.ca/en/pdp/frank-ammonia-all-purpose-cleaner-lemon-scent-1-8-l-0532487p.html