Sources of data for assumptions
US	Gianessi & Carpenter (1999) (Gianessi & Carpenter, 1999)
	Sankala & Blumenthal (2003 and 2006) (Sankula & Blumenthal, 2003, Sankula & Blumenthal, 2006)
	Johnson & Strom (2007) (Johnson & Strom, 2006)
	Own analysis (2010–2015)
	All of the above mainly for conventional regimes (based on surveys and consultations of extension advisors and industry experts)
	GFK Kynetec – private market research data on pesticide usage. Is the most comprehensive data set on crop pesticide usage at the farm level and allows for disaggregation to cover biotech vs. conventional crops. This source primarily used for usage on GM traits
Argentina	AMIS Global & Kleffmann - private market research data on pesticide use. Is the most detailed data set on crop pesticide use
	AAPRESID (farmer producers association) – personal communications 2007
	Monsanto Argentina (personal communications 2005, 2007, 2009, 2010, 2011, 2012, 2013, 2014, 2015)
	Qaim & De Janvry (2005) (Qaim & De Janvry, 2005)
	Qaim & Traxler (2002) (Qaim, 2002)
Brazil	AMIS Global & Kleffmann - private market research data on crop pesticide use. Is the most detailed data set on crop pesticide use
	Monsanto Brazil (2008) (Michigan State University 2007),
	Galveo (2009Galveo, 2009 and 2012Galveo, 2012), plus personal communications
	Monsanto Brazil (personal communications 2007, 2009, 2011, 2013, 2014, 2015)
Uruguay	AMIS Global and as Argentina for conventional
Paraguay	As Argentina for conventional soybeans (over the top usage), AMIS Global for GM HT soybean
Bolivia	As Paraguay: no country-specific data identified
Canada	George Morris Center (2004) (George Morris Center 2004)
	Canola Council (2001) (Canola Council of Canada 2001)
	Smyth et al (2008) (Smyth et al., 2011)
	Weed Control Guide Ontario (updated annually)
S Africa	Monsanto S Africa (personal communications 2005, 2007, 2009, 2010, 2011, 2012, 2014, 2015)
	Ismael et al (2002) (Ismael et al., 2002)
	AMIS Global
Romania	AMIS Global, Brookes (2005) (Brookes, 2005)
Australia	AMIS Global
	Doyle et al (2003) (Doyle, 2005, Doyle, 2003)
	CSIRO (2005) (Commonwealth Scientific & Industrial Research Organisation (CSIRO 2005)
	Monsanto Australia (personal communications 2005, 2007, 2009, 2010, 2011,2012, 2014, 2016)
	Fisher & Tozer (2009) (Fisher & Tozer, 2009)
Spain	Brookes (2003 and 2008) (Brookes, 2003, Brookes, 2008)
China	AMIS Global
	Pray et al (2002) (Pray et al., 2002)
	Monsanto China personal communication (2007, 2009, 2010, 2011, 2013, 2014, 2016)
Mexico	Monsanto Mexico (2005, 2007, 2008, 2009, 2013, 2016) (Monsanto Comercial Mexico 2015, Monsanto Comercial Mexico 2013, Monsanto Comercial Mexico 2012, Monsanto Comercial Mexico 2009, Monsanto Comercial Mexico 2008, Monsanto Comercial Mexico 2007, Monsanto Comercial Mexico)
	Traxler G et al (2001) (Traxler et al., 2001)
India	AMIS Global
	APCOAB (2006) (Asia-Pacific Consortium on Agricultural Biotechnology (APCoAB 2006)
	IMRB (2006,2007) (IMRB International 2006, IMRB International 2007)
	Monsanto India (2007, 2008, 2009, 2010, 2011, 2013, 2016) – personal communications