Billbugs are one of the most common garden and yard pests in North America. While they may only grow up to around a half inch in length, they can wreck havoc on peoples yards. They can survive in a multitude of climates but when it is warmer during the summer they can travel long distances to get to new territories. Humans do not need to worry about them coming inside because they will not survive long when they are not near gardens or lawns. They are also harmless to people, but they can be a serious pest as they are kill patches of grass, making unsightly dead areas in peoples yards. When there is an infestation it could also bring many of their natural predators to your yard, such as birds, skunks, and some wasps.