Moving about by a large muscular foot. They are mollusks and are related to clams, squid and octopus. These pests are very common in moist areas of the country, especially the Pacific Northwest where they can be a very persistent nuisance.
Slugs are most active at night or early mornings, during cool, wet periods.
They remain mostly inactive during hot or freezing weather. During periods of inactivity they hide in crevices, under boards, rocks. They also hide under the rims of pots and in the drainage holes on the bottom of the pots. They are territorial and will return to the same area over and over unless disturbed or it becomes to dry for them. On roots and tubers look for shallow to deep, smooth sided pits.