Earwigs are second only to snails and slugs. They eat almost anything soft. They do have a good side to them, as they eat insects such as aphids. Unfortunately they also feed on soft plants. They can do quite a lot of damage if there is a high population. Earwigs are nocturnal, coming out to feed at night, and running back to hide in a moist, tight fitting place during the day. You can trap them by putting out moistened, tightly rolled newspaper or corrugated cardboard in the evening. In the morning dispose of the paper and the trapped insects.