Fed up with traditional means for getting rid of weed seeds when no-tilling small grains, Ray Harrington came up with a solution to overcome the mounting concerns with herbicide-resistant weeds.
A population of common waterhemp has developed resistance to postemergent application of HPPD-inhibiting herbicides (e.g., Callisto, Laudis, and Impact).
A waterhemp population from southeast Nebraska has been confirmed to be resistant to 2,4-D, but the resistant population is believed to be limited to a few fields.
Source: By Bill Johnson and Glenn Nice, Purdue Weed Science, Purdue University
Waterhemp has been present in Indiana field surveys for at least the last 10 years but recent control issues with glyphosate is moving this weed up on the radar of concern for Indiana growers.
The first confirmed case of weeds resistant to HPPD-inhibiting herbicides has been found in waterhemp in Illinois, according to University of Illinois weed scientists.
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On this episode of Conservation Ag Update, brought to you by Montag Manufacturing, growers from across the U.S. share their predictions for the upcoming planting season, including one no-tiller who’s “bullish” about a great spring.
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