Gray Garden Slug (IMAGE) Entomological Society of America Caption This is a gray garden slug (Deroceras reticulatum). D. reticulatum appears to be the most economically important slug, often occurring in the largest numbers and most often associated with crop damage. Credit Margaret Douglas, PSU Usage Restrictions Credit required License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.