What we call pests often fulfil such important roles in nature that we'd be hopelessly effed without them. They only become a problem when they decide to come a

What we call pests often fulfil such important roles in nature that we'd be hopelessly effed without them. They only become a problem when they decide to come and live in our homes, eat from our food, and lay eggs in our beds. So since we're stuck with them, the best thing we can do is to try and prevent this problematic behaviour from taking place. If that somehow fails things are going to get nasty for a while.