• Letter from the President of the American Corn Growers Association to EPA's Christine Todd Whitman regarding negative market impact to farmers from Bt Corn

• Friends of the Earth's comments to the EPA on Bt reregistration
  • Appendix
  • FoE's letter to the EPA calling for a delay in the decision on re-registering these crops (especially corn) until proper studies are done and evaluated

• Hilbeck/Meier Anaysis -- Critique of EPA's environmental risk assessment of Bt crops, July 16, 2001 (APPENDIX 1: UCS Comments)

• Addendum to Comments submitted by Union of Concerned Scientists, September 21, 2001

• Comments from Dr. John J. Obrycki, Laura H. Jesse, Dr. Karen Oberhauser, Dr. John Losey re: docket no. OPP-00678B, September 11, 2001

  Papers about Bt corn and butterflies published in an early edition of PNAS, Proceedings of the National Academy of Sciences

  • Temporal and spatial overlap between monarch larvae and corn pollen -ABSTRACT, Karen S. Oberhauser, Michelle D. Prysby, Heather R. Mattila, Diane E. Stanley-Horn, Mark K. Sears, Galen Dively, Eric Olson, John M. Pleasants, Wai-Ki F. Lami, and Richard L. Hellmich
    • Full Text of Article from PNAS Online

  • Monarch larvae sensitivity to Bacillus thuringiensispurified proteins and pollen -ABSTRACT, Richard L. Hellmich, Blair D. Siegfried, Mark K. Sears, Diane E. Stanley-Horn, Michael J. Daniels, Heather R. Mattila, Terrence Spencer, Keith G. Bidne, and Leslie C. Lewis
    • Full text of Article from PNAS Online

  • Effects of exposure to event 176 Bacillus thuringiensis corn pollen on monarch and black swallowtail caterpillars under field conditions - ABSTRACT, A. R. Zangerl, D. McKenna, C. L. Wraight, M. Carroll, P. Ficarello, R. Warner, and M. R. Berenbaum*
    • Full text of Article from PNAS Online

  • Impact of Bt corn pollen on monarch butterfly populations: A risk assessment - ABSTRACT, Mark K. Sears*†, Richard L. Hellmich‡, Diane E. Stanley-Horn*, Karen S. Oberhauser§, John M. Pleasants¶, Heather R. Mattila*, Blair D. Siegfriedi, and Galen P. Dively**
    • Full text of Article from PNAS Online

  • Assessing the impact of Cry1Ab-expressing corn pollen on monarch butterfly larvae in field studies -ABSTRACT, Diane E. Stanley-Horn, Galen P. Dively, Richard L. Hellmich, Heather R. Mattila, Mark K. Sears, Robyn Rose, Laura C. H. Jesse, John E. Loseyi, John J. Obrycki, and Les Lewis
    • Full text of Article from PNAS Online

  • Corn pollen deposition on milkweeds in and near cornfields John M. Pleasants, Richard L. Hellmich, Galen P. Dively, Mark K. Sears, Diane E. Stanley-Horn, Heather R. Mattila, John E. Fosteri, Thomas L. Clarki, and Gretchen D. Jones
    • Full text of Article from PNAS Online

• Union of Concerned Scientists (UCS) Comments on Bt Re-registration, submitted September 20, 2001
  • Appendix 2: Benbrook IRM Analysis -- New Science Shows that Current Bt-Corn and Cotton IRM Plans will Not Significantly Delay Resistance to Bt- Based Pest Management Technologies, Comments Submitted on Behalf of: Environmental Defense and the The Union of Concerned Scientists August 20, 2001
  • Appendix 3: Benbrook Benefits Analysis -- EPA Continues to Overstate the Benefits of Bt Crops and Ignores Important Costs, Comments Submitted on Behalf of: Environmental Defense and the The Union of Concerned Scientists August 20, 2001
    • Table 1. Percent U.S. National Corn Acres Treated with Insecticides by Target Pest
    • Table 2. National Cotton Insecticide Acre Treatments by Likely Target Pest Category
    • Table 3. National Cotton Insecticide Pounds Applied by Likely Target Pest Category
    • For a complete Excel Workbook containing State Level Use tables, please e-mail a request to: karen@hillnet.com

• Comments from The Center for Food Safety, Docket Control #OPP-00678B, August 30, 2001

• Comments from Dr. Karen Oberhauser, University of Minnesota, Department of Ecology, Docket Control #OPP-00678B, September 1, 2001

• "Comments on the human health impact of Bacillus thuringiensis toxin gene product in genetically modified crops", EPA Review Docket Number OPP-00678B, Professor Joe Cummins, Professor Emeritus of Genetics, University of Western Ontario

• "Comments on the human health and product characterization sections of EPA's Bt Plant-Pesticides Biopesticides Registration Action Document", Michael Hansen, Ph.D. submitted on behalf of Consumer Policy Institute/Consumers Union

EPA Science Advisory Panel -- Review of the Reregistration of Bt Plant Pesticides -- Arlington, VA, October 18-20, 2000

• SAP Report No. 2000-7, Sets of Scientific Issues Being Considered by the Environmental Protection Agency Regarding: Bt Plant-Pesticides Risk and Benefit Assessments, March 12, 2001

• October 18-20, 2000: Issues pertaining to the Bt plant pesticides Risk and Benefit Assessments
• Comments of Anne R. Bridges, Ph.D., American Association of Cereal Chemists, Biotechnology Committee Presented to the United States EPA, FIFRA SAP on Bt Plant Pesticides: Risk and Benefit Assessments, October 20, 2000
• "An Appraisal of EPA's Assessment of the Benefits of Bt Crops", part of the Union of Concerned Scientist's written comments presented on October 20, 2000 to the EPA's Scientific Advisory Committee reviewing a series of scientific questions relative to the reregistration of Bt crops.
  • A Critique of "An Appraisal of EPA's Assessment of the Benefits of Bt Crops", prepared by Leonard Gianessi
  • Brief Response to Leonard Gianessi's October 31, 2000 "A Critique of of An Appraisal of EPA's Assessment of the Benefits of Bt Crops" by Charles M. Benbrook
  • Revised Table 1
• EPA Withholding Information on Approvals Of Experimental GMO Crop, Nonprofit Says, BNA Daily, January 15, 2001

• U.S. renews biotech corn registration for 7 years, Reuters, October 16, 2001

• EPA Calls Biotech Corn No Threat -- Farmers Can Keep Growing Genetically Engineered Crop, Associated Press, October 17, 2001

• Government OKs Biotech Cotton, AP Online, October 1, 2001

• New Research Fuels Debate Over Genetic Food Altering, New York Times, September 9, 2001

• Data on Genetically Modified Corn Reports Say Threat to Monarch Butterflies Is 'Negligible', New York Times, September 8, 2001

• 'Bt' Means Big Trouble for Nation's Crops, New York Times, August 30, 2001

• EPA Withholding Information on Approvals Of Experimental GMO Crop, Nonprofit Says, BNA Daily, January 15, 2001