May 16 Canadian regulators have given a green
light to Dow AgroSciences, a unit of Dow Chemical Co, to
introduce a controversial new herbicide meant to control
spreading weed resistance, Dow said on Thursday.
Health Canada's Pest Management Regulatory Agency
(PMRA)approved "Enlist Duo" herbicide for use in Canada, making
it the first country to authorize the new herbicide.
U.S.-based Dow AgroSciences' Enlist herbicide is designed to
be used alongside new biotech crops for which Dow is seeking
approval. These biotech crops are able to tolerate Enlist
herbicide, which helps farmers more easily treat fields for
Millions of acres of weeds throughout North America have
become resistant to the popular Roundup herbicide, which is used
in conjunction with "Roundup Ready" herbicide-tolerant crops.
Dow sees its Enlist system as an alterative.
"Managing hard-to-control and resistant weeds is one of the
biggest problems farmers are facing, and Enlist is a solution
they need to continue moving farming forward," Stan Howell, vice
president, North America, Dow AgroSciences, said in a statement.
Dow said the new crops and herbicide are safe and effective.
But critics contend that Dow's plans will only add to weed
resistance problems, and the 2,4-D chemical component in the
Enlist herbicide is unsafe for humans and animals as well as the
The U.S. Department of Agriculture surprised Dow
AgroSciences on Friday when it said it wanted to further
scrutinize Dow's proposed new Enlist crops, a move that delays
Dow's commercialization plans in the United States.
Canadian regulators have already approved Enlist corn and
soybeans and Dow said it will speed up seed production for a