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Furthermore, PPO-resistant waterhemp has been confirmed in 4 counties (Iowa, Monroe, Saint Croix, and Pierce). Resistance to ALS-inhibiting herbicides is widespread across the Midwest but has not been fully investigated in Wisconsin. Waterhemp is dioecious (male and female flowers on separate plants), and must outcross. Therefore the genetic diversity within a waterhemp population tends to be greater than for most agronomic weeds. While there are dozens of common weeds that threaten yield each season, many Midwest farmers who grow corn or soybeans are facing off with waterhemp now. ALS inhibitor resistant waterhemp occurs in IA, IL, IN,KS, MI, MN, MO, Waterhemp typically emerges in a corn and soybean field over a period of 8 to 10 weeks. It is a summer annual broadleaf with a germination period that lasts several months. Tall waterhemp has been reported as a weed in 40 of 50 U.S. states.

University of Illinois researchers used molecular methods to identify a gene for GST-based atrazine resistance.

Twenty-five years ago, waterhemp was virtually unknown to Illinois farmers. Today, the broadleaf weed blankets corn and soybean fields across the state and the Midwest, causing yield losses from 40% to 70%, according to an article on the… University of Illinois study explains waterhemp’s metabolic resistance to topramezone, an HPPD-inhibitor herbicide. by Rodrigo Werle (UW-Madison Extension Cropping Systems Weed Scientist) According to our 2018 weed management Survey, waterhemp has become the most concerning weed species in field crop production in Wisconsin. Farmers all over the Midwest have been trying to tame the waterhemp beast for years, but are struggling to win the fight. Managing this weed is clearly not easy, but Practical Farmers of Iowa shares some simple practices growers can… Waterhemp resistant to Group 15 herbicides (very long chain fatty acid inhibitors) has officially been found in Illinois research plots.

In this video, Dave Roome, customer technical specialist, Corteva Agriscience, Agriculture Division of DowDuPont, demonstrates helpful ways to properly idenThe Clark Companies : News : Watch out for waterhemp - it could…https://theclarkcompanies.com/watch-out-for-waterhemp-it-could-be-in-a…Waterhemp looks very similar to pigweed however they have one key difference: Waterhemp is smooth with no hairs like the ones you will find on other pigweed species.

University of Illinois study explains waterhemp’s metabolic resistance to topramezone, an HPPD-inhibitor herbicide. by Rodrigo Werle (UW-Madison Extension Cropping Systems Weed Scientist) According to our 2018 weed management Survey, waterhemp has become the most concerning weed species in field crop production in Wisconsin. Farmers all over the Midwest have been trying to tame the waterhemp beast for years, but are struggling to win the fight. Managing this weed is clearly not easy, but Practical Farmers of Iowa shares some simple practices growers can…

Nejnovější tweety od uživatele Tammy Jones (@AgGalJones): "If this is your view as you go to harvest - Please STOP !! This is waterhemp, a Tier 1 Noxious Weed in MB. Now is the time to scout and Destroy.

Anthem herbicide for corn delivers better weed control, longer residual and a wide application window with less product. Management of localized waterhemp and Palmer amaranth infestation in a native species seeding. Waterhemp and Palmer amaranth, two aggressive weeds that threaten the food supply in North America, are increasingly hard to kill with commercially available herbicides. A novel approach known as genetic control could one day reduce the…