Food sources, environmental requirements, damage to strawberries, and the tendency to migrate into structures are similar to those of sowbugs and pillbugs. Cultural and chemical controls listed for sowbugs and pillbugs will also reduce problems associated with millipedes. Slugs Slugs are, for all practical purposes, merely snails without shells. Species associated with strawberries are gray and about 1 inch long when fully grown. Immatures resemble small adults.
Winter is spent as immatures or adults in sheltered areas or in the egg stage.
Eggs are laid in masses of 25 or more in moist places from spring to fall. The eggs hatch in about a month if temperature and humidity are favorable. Most species mature within a year. They feed in the evening or on cloudy days and remain hidden on sunny days. They will feed on virtually any organic material they can ingest, including young seedlings and succulent portions of plants.