herbicide

Getting off the chemical treadmill

Jan 4, 2015
Abby Wendle/Harvest Public Media

Farmers engaged in an epic struggle with “superweeds” – weeds that don’t die even when sprayed with herbicide – are looking for help from a new super chemical that’s about to hit the market.

Currently the last line of defense against weeds not felled by other herbicides, the new chemical could be defeated if it is overused and farmers could be left in even worse straits.  

Pigweed Problem

Herbicide-resistant Pigweeds are marching north into soybean and corn fields across the Midwest from the southern U.S. where they choked cotton fields so completely that the land cannot be farmed They can grow up to seven feet tall and produce more than half a million seeds per plant, per season.

Monsanto.com

New herbicide-resistant corn and soybeans are a step closer to reaching farm fields in the U.S. They would help farmers control weeds that are no longer killed by the popular herbicide, Roundup.

Roundup resistant crops dominate corn, soybean and cotton production in the U.S. But the list of weeds that have evolved to withstand Roundup is growing, and as a result, farmers are using more chemicals to keep up.