While herbicides remain a primary tactic to manage many weed species, farmers can implement several best management practices to slow resistance development and better control weeds like waterhemp.
While there have been no officially documented cases of resistance to dicamba or glufosinate in waterhemp, there have been multiple instances where a lack of complete control have been observed. A recent study by the University of Missouri shows that using reduced rates of the herbicides leads to an increase in survival.
With growing concerns about herbicide resistance, Australia no-tillers are looking at new non-chemical ways to control serious weed problems. While the 2013 no-till acreage in Australia was 43.7 million acres, there’s some thought that the country’s no-till acres have declined in recent years due to herbicide resistance worries.
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On this edition of Conservation Ag Update, brought to you by CultivAce, Gregg Sanford, Wisconsin Integrated Cropping Systems Trial manager, reveals how no-till is stacking up to other major systems in year 34 of the trial.
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