1. Johnson, S., S. Strom, and K. Grillo. 2008. Quantification of the impacts on US agriculture of biotechnology-derived crops planted in 2006: Executive summary. Natl. Center Food Agric. Policy, Washington, DC. Accessed Aug. 24, 2011. http://www.ncfap.org/documents/2007biotech_report/Quantification_of_the_Impacts_on_US_Agriculture_of_Biotechnology_Executive_Summary.pdf
2. USDA, Economic Research Service. 2010. Briefing Rooms: Agricultural Biotechnology. Adoption of Genetically Engineered Crops in the U.S.: Corn Varieties. Accessed March 2010. http://www.ers.usda.gov/Data/BiotechCrops/ExtentofAdoptionTable1.htm.
3. James, C. 2010. Global Status of Commercialized Biotech/GM Crops: 2009. The First Fourteen Years, 1996 to 2009. Int. Serv. Acquis. Agri-Biotech Appl. Brief No. 41-2009: Executive Summary. Int. Serv. Acquis. Agri-Biotech Appl., Ithaca, NY. Accessed Aug. 24, 2011. http://www.isaaa.org/resources/publications/briefs/41/executivesummary/default.asp
4. Evaluation of transgenic corn for resistance to corn earworm (Lepidoptera: Noctuidae), Fall armyworm (Lepidoptera: Noctuidae), and Southwestern corn borer (Lepidoptera: Crambidae) in a laboratory bioassay;Williams;J. Agric. Entomol.,1998
5. Resistance of BT transgenic maize to lesser cornstalk borer (Lepidoptera: Pyralidae);Vilella;Fla. Entomol.,2002