Abstract:
Many terrestrial molluscs (slugs and snails) are economically important
because of their feeding activities on ornamental plants and vegetable and
field crops. Studies of their habits, biology, and chemical control have
been conducted by the Oregon Agricultural Experiment Station since 1911.
This report discusses the common species of Oregon, their origins, and
identification (including a key to the common species of western Oregon).
The early history of chemical slug and snail control is reviewed with
emphasis on studies at OSU during the l95Os. Research on chemical control
since 1967 is covered in detail, including methods of raising the animals,
annotated tables of chemicals explored, and methods for testing candidate
materials. Special molluscicidal studies are discussed, including the
relative value of baits containing more than one toxicant, laboratory and
field comparisons of some leading toxicants, and the differential susceptibility
to poisons according to the species and age of the molluscs.
