Slugs are similar to snails but differ from snails in that they do not have a hard protective spiral shell. There are many species of slugs in this state which vary in appearance and habits. Immature slugs resemble adults but are smaller and usually lighter in color. Eggs Eggs are gelatinous and watery in appearance. In the colder parts of NC, only the eggs overwinter.
Eggs are resistant to summer heat, excessive moisture and prolonged drying.
They are laid in clusters of about 25 on the soil surface in concealed moist locations. In spring eggs hatch and young slugs appear. They resemble adults but may be lighter in color and smaller. Most slugs become mature and lay eggs in the fall of the first year of their life. If not killed by cold weather, they may live for two or more years.