External links

• Willie, B. University of Saskatchewan. Saskatoon, Saskatchewan Canada Physical control of slugs. http://gardenline.usask.ca/pests/slugs.html
• UC Davis. Snails and slugs. http://www.ipm.ucdavis.edu/PMG/PESTNOTES/pn7427.html

References

• Barker, G.M., Editor. (2002): Molluscs as crop pests CABI Publishing. CAB International, Wallingford, UK.
• Hollingsworth, R.; Armstrong, J.; Campbell, E. (2002): Caffeine as repellent for slugs and snails. USDA-ARS, Hilo, Hawaii, USA.
• Olkowski, W.; Daar, S.; Olkowski, H. (1991): Common sense - pest control. The Taunton Press. USA.
• Olkowski, W.; Daar, S.; Olkowski, H. (1995): The gardener?s guide to common-sense pest control. The Taunton Press. USA.
• Port, G.; Ester, A. (2002): Gastropods as pests in vegetable and ornamentals crops in Western Europe in Molluscs as crop pests. Edited by G.M. Barker. CABI Publishing, Wallingford, UK.
• Thompson, R.; Cheney, S. (1996): Raising snails. U.S. Department of Agriculture, Agricultural Research Service, National Agricultural Library, Beltsville, Maryland