date:May 14, 2012
ant to weed killers, such as 'Buva', a virulent weed that grows in Brazil and Argentina.
Buva is resistant to glyphosate, the same as GM soy, which makes it hard to deal with. This means other chemistry may be used to kill the weeds, namely 2,4-Dichlorophenoxyacetic acid (aka '2,4-D') and Paraquat,he says.Both are particularly nasty, highly toxic chemicals. 2,4-D was developed in the 1940s and is a known carcinogen; it is associated with Agent Orange, used as a defoliant in the Vietnam war.