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Mollusks of the Lower Susquehanna River Watershed: Gray Garden Slug
The Gray Garden Slug (Deroceras reticulatum) is an invasive inhabitant of places subjected to human disturbance, especially cultivated farmland and, as the common name suggests, gardens.  They are most active at night, hiding beneath plant litter, trash, and rocks during the daytime.  This inch-long specimen was photographed while out and about on a recent dreary and damp afternoon.  Natural enemies of terrestrial slugs include birds, toads, frogs, snakes, and some beetles in the family Caribidae.  In the field and vegetable patch, keeping leaf litter and other debris away from the base of young plants can reduce damage caused by these hungry mollusks.

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