Roaches do attract bed bugs, and there are a variety of reasons for this. Some experts say that the CO2 that roaches produce mimics the CO2 that bed bugs emit, which attracts them. Others believe that the body heat of roach can make an inviting target for a bed bug looking for a blood meal.
Using strong fragrances to get rid of squirrels is an excellent strategy some odors cause squirrels to scrunch their noses in disgust. They are reported to be repelled by the odor of coffee powder and peppermint, but you can develop your own mixture using garlic, vinegar, and onions, or peppermint oil to spray in the garden