Dr Trevor James: Concerns raised over herbicide resisitance on New Zealand farms and vineyards - Early Edition on Newstalk ZB

It turns out herbicide resistance is a far bigger problem in New Zealand than anyone thought.   
Scientists have just completed the first nationwide survey on resistance.  
Instead of finding the expected 5 percent of arable farms and vineyards being resistant to common herbicides, they found 50 percent are.  
Agresearch senior scientist, Dr. Trevor James joined Kate Hawkesby. 
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