Nat. Biotechnol. 28, 537–538 (2010); published online 7 June 2010; corrected after print 13 October 2010

The version of the article originally published erroneously states that “Unlike pesticide use, herbicide use is not regulated by the US federal government.” The article should have stated “Unlike insect resistance, the US government does not have a mandated herbicide-resistance program.” The error has been corrected in the HTML and PDF versions of the article.