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Aside from incorporating smells that roaches hate in your bedroom, such as citronella, lemongrass, or clove oil, there are a few ways you can keep roaches away at night. First, try moving your bed away from the wall, as roaches will often climb the walls and onto your bed. If you’re still having trouble, you can also purchase a mosquito tent for your bed, or hang netting from the ceiling to surround your sleeping area. Make sure it isn’t touching the ground, though, as they may attempt to climb it.

You can find anti-rat sprays in most home department stores that may be worth a try. Spray them along fences and in areas where you don’t want rats to go (like around decks) and they may think twice before approaching. For a natural version, you can try a mint spray, since rats generally dislike mint. But even the most effective sprays are unlikely to stop a hungry rat over time.

The most common wasps are hornets, yellowjackets, and paper wasps. Both hornets and yellowjackets are black and yellow, and hornets are known to be more aggressive if their nests are disturbed. Paper wasps are black or reddish-brown with yellow markings and often build nests on eaves or branches. Of the more than 300,000 species of wasps, these are the most often encountered by pest control professionals.

You should not see live bed bugs after heat or fumigation treatments, but you may see dead bugs. For chemical treatments, it can take several days for bed bugs to die. However, you may see live bed bugs if they are hiding in areas to avoid insecticides or if they are resilient to the type of treatment used.