Excerpt from Steve
Tvedten's book "The
Best Control"
(Used here with permission.)
SNAILS AND SLUGS
Snails and slugs are related to clams,
oysters, scallops, abalone, octopi andsquid. Other pests that belong to
this group are the shipworms (shipworms boreinto wood that is in contact
with salt or brackish water) and the pholads,
PHYLUM - Mollusca
CLASS - Gastropoda;. Subclass - Pulmonata
ORDER - Stylommatophora
TYPE OF MOUTHPARTS - Rasping
DESCRIPTION
Snails - Color varies but is often gray.
Head with two pairs oftentacles or feelers. The larger pair bear eyes at
the tip. Mouth is inthe center of the head below the tentacles. Encased
in an evergrowing hard rounded shell. The eggs are generally round, white
andcovered with a limy shell and laid in one mass of about 10 - 200 eggsin
a cavity about 1" in the ground.
Slugs - A "snail" without a shell. Vary in color from whitish yellow togray to black and some are mottled. They are similar to snails instructure; slimy creatures up to 4" long. Often leave a mucus-like trailon surfaces. Lay 25 or more oval translucent eggs under a dampprotected location. They reach maturity in 3 - 12 months.
LENGTH OF LIFE CYCLE
Snails - 1 to 3 years. May seal off their
shell and become dormant for up to 4 years.
Slugs - Approximately 1 year.
HABITAT - Snails and slugs are most active
at night or dark days when they come out of damp areas,soil litter, foliage
of plants and other protected hiding areas to feed. They prefer damp, dark
hiding placessuch as under flat stones, old decaying timbers, damp refuse,
boards or logs, in damp basements, amongivy, dense shrubbery, in rock piles
and under trash piles and damp plant debris, or in drain piles, greenhouses
and storage pits. They will often return to the same resting area each
day unless the areabecomes too dry or has been disturbed.
Web Mistress Note: A little license was taken with title and some emphasis. However, the content is correct as it appears in "The Best Control)