You can also squirt a solution of half lemon juice, half water around the outside of your house.
Available electronic squirrel repellents are environment friendly and they range from light, water and ultrasonic repellents.
White vinegar will also kill ants.
Apply on places where you feel them.
Yes, you bet they do; cockroaches do bite.
This is why cockroaches are often found in basements, garages, or attics.
Pour baking soda and vinegar into the nest.
I did and was very successful.