Idaho Extension Scientist Looking For Weed Seeds
January 7, 2016 A University of Idaho Extension weed scientist is asking growers and agronomists to save weed seeds for research purposes in the coming season if they encounter redroot pigweed or common lamb’s quarters that withstand herbicide treatments, reports John O’Connell with The Capital Press.
Pam Hutchinson suspects metribuzin herbicide resistance may be on the rise within Idaho’s populations of redroot pigweed and lamb’s quarters.
In 2005, Hutchinson received her first report of metribuzin resistance suspected in redroot pigweed from a grower in Shelley, who acknowledged he’d used the chemical every other year on potatoes since the 1970s.
“He said metribuzin was no longer controlling redroot pigweed, but it had controlled it really well in the past,” Hutchinson said, adding that he switched to other herbicides.
More recently, growers throughout Southern Idaho’s potato production area have also reported evidence of metribuzin-resistant lamb’s quarters.
Head on over to CapitalPress.com to finish reading O’Connell’s dispatch from Idaho.
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