Unwanted Plants Threaten Crops in North-Central US voanews.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from voanews.com Daily Mail and Mail on Sunday newspapers.
Crop-killing weeds such as kochia are advancing across the U.S. northern plains and Midwest, in the latest sign that weeds are developing resistance to chemicals faster than companies including Bayer and Corteva can develop new ones to fight them.
WINNIPEG, Manitoba/CHICAGO, Jan 16 -
C rop-killing weeds such as kochia are advancing across the U.S.
northern plains and Midwest, in the latest sign that weeds.