External links

• PA IPM Program. Cabbage maggot. http://resources.cas.psu.edu/ipm/25pests/cabmag.pdf
• Cornell University. Cabbage maggot. http://www.nysaes.cornell.edu/ent/factsheets/pests/cabm.html
• UMass Extension Cabbage root maggot. http://extension.umass.edu/vegetable/insects/cabbage-root-maggot
• Delia radicum. http://www7.inra.fr/hyppz/IMAGES/7031590.jpg

References

• Brooklyn Botanic Garden. (1999): Natural insect control: The ecological gardener's guide to foiling pests. Handbook # 139. Brooklyn Botanic Garden, Inc. Washington Avenue, Brooklyn, NY.
• CABI. (2001): Crop protection compendium. Global module, 3rd edition. CAB International Publishing. Wallingford, UK.
• CABI. (2000): Crop protection compendium. Global module, 2nd edition. CABI Publishing, Wallingford, UK.