Abstract
SUMMARYIt is impracticable to count slugs per unit area in the field, but both slugs and their eggs are recovered efficiently by soil washing in the laboratory. A less laborious method is described in which slugs (only) are expelled from turves progressively immersed in cold water. This method, used with samples of twelve 12×12×4 in. units of substratum, gives satisfactory estimates for Agriolimax reticulatus and Arion intermedim at population densities above I per sq.ft.
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