Science Advances

Supplementary Materials

This PDF file includes:

  • Supplementary Text
  • fig. S1. Number of years sampled for growers in AgroTrak data set.
  • fig. S2. Maize herbicide use by non-GT adopters (selected herbicides, kg/ha).
  • fig. S3. Crop reporting districts.
  • fig. S4. Trends in glyphosate and expected crop output prices, 1998–2011.
  • table S1. Summary statistics for AgroTrak data set.
  • table S2. Full results corresponding to Table 1.
  • table S3. Full results corresponding to Figs. 2 and 3.
  • table S4. Random effects replace farmers fixed effects.
  • table S5. Model estimates with the no-till binary variable included.
  • table S6. Targeted weeds and impact of GE variety adoption on herbicide use (kg/ha of active ingredient).
  • table S7. Model excludes growers that plant both GE and non-GE varieties within a given year.
  • table S8. Model excludes growers that plant both GE and non-GE varieties within a given year.
  • table S9. Model excludes farmers that never used pesticides (on any of their plots).
  • table S10. Model excludes farmers that never used pesticides (on any of their plots).
  • table S11. Full set of results corresponding to Fig. 4.
  • table S12. GE adoption rates (% of planted hectares), 1998–2011.
  • table S13. Pesticide rates (kg/ha), 1998–2011.
  • table S14. Correlation between state-level GE adoption rates from USDA and GfK data.
  • table S15. Summary statistics by adoption choice.
  • References (3545)

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