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Tag "waterhemp"

Indiana: Fall Applied Herbicides – Controlling Waterhemp and Other Winter Annuals

Indiana: Fall Applied Herbicides – Controlling Waterhemp and Other Winter Annuals

👤By Joe Ikley and Bill Johnson, Purdue University Extension Specialists 🕔Aug 18, 2017

One of our biggest weed problems across Indiana every year is control of marestail in soybeans, and 2017 has been no different. Many growers had a lot of trouble controlling marestail in their spring burndown programs in April and May.

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Minnesota: Target Weeds After Small Grain Harvest

Minnesota: Target Weeds After Small Grain Harvest

👤By Jared Goplen, Tom Peters, and Dave Nicolai, University of Minnesota Extension Specialists 🕔Aug 15, 2017

One of the many benefits of including small grains in crop rotations is improved broadleaf weed control and breaking up weed lifecycles. Although freshly harvested small grain fields have a clean look, they often have weeds hiding in the stubble.

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Pennsylvania Soybeans: Invasive Pigweeds Rising Above Canopies

Pennsylvania Soybeans: Invasive Pigweeds Rising Above Canopies

👤By William Curran, Dwight Lingenfelter, and Annie Klodd, Pennsylvania State University Extension Sepcialists 🕔Aug 9, 2017

Now is the time to scout for Palmer amaranth and waterhemp and remove or destroy it to prevent seed production and spread.

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Minnesota Soybeans: Late Season Weed Escapes; What Should You Do?

Minnesota Soybeans: Late Season Weed Escapes; What Should You Do?

👤By Jared Goplen, Dave Nicolai, Lisa Behnken, and Jeff Gunsolus, University of Minnesota Extension Specialists 🕔Aug 7, 2017

Despite your best weed-control efforts this year, you still ended up with patches or fields with weeds coming through the crop canopy. Now that August has rolled around, what options are available to control weeds and prevent them from going

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Iowa: Palmer Pigweed – Now’s a Good Time to Scout

Iowa: Palmer Pigweed – Now’s a Good Time to Scout

👤By Meaghan Anderson, Iowa State University Field Agronomist 🕔Jul 26, 2017

As of February 2017, Palmer amaranth had been found in 49 of Iowa’s 99 counties.  A native of the American southwest, Palmer amaranth is more competitive than common waterhemp, a pigweed native to Iowa.

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Iowa: Weed Quiz – Can You ID These 6 Different Pigweeds?

Iowa: Weed Quiz – Can You ID These 6 Different Pigweeds?

👤By Bob Hartzler, Iowa State University 🕔Jun 21, 2017

The six weedy Amaranthus species at the weed garden have grown quite a bit, but I’m not sure how much easier it is to differentiate a few of the species. Can you tell which is which?

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Pennsylvania Corn, Soybeans: Midseason Control of Marestail, Palmer Pigweed, Waterhemp

Pennsylvania Corn, Soybeans: Midseason Control of Marestail, Palmer Pigweed, Waterhemp

👤By William Curran and Dwight Lingenfelter, Pennsylvania State University 🕔Jun 21, 2017

As we proceed through the growing season, there are a few issues surrounding weed control and herbicide use. Here are some items to consider.

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Pennsylvania: Palmer Amaranth and Waterhemp Beginning to Emerge

Pennsylvania: Palmer Amaranth and Waterhemp Beginning to Emerge

👤By Annie Klodd, Pennsylvania State University 🕔Jun 15, 2017

Pigweed species have begun emerging for the season in Pennsylvania, including reports of Palmer amaranth and waterhemp in southeastern Pennsylvania. It is important to scout for these invasive weeds now, and control them before they reach 4 inches tall.

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Kansas Soybeans: Postemergence Marestail and Pigweed Control

Kansas Soybeans: Postemergence Marestail and Pigweed Control

👤By Dallas Peterson and Doug Shoup, Kansas State University 🕔Jun 13, 2017

Controlling marestail or pigweeds postemergence in soybeans is always easier when the weeds are small – less than 2 inches tall is preferable for good control. Once weeds get taller, they are often considerably more difficult to control. However, conditions

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Minnesota Soybeans: Residual Herbicides for Late-Planted, Emerged Fields

Minnesota Soybeans: Residual Herbicides for Late-Planted, Emerged Fields

👤By Jeff Gunsolus, Lisa Behnken, and Fritz Breitenbach. University of Minnesota 🕔May 24, 2017

Application of a residual herbicide prior to planting or emergence of the crop is an effective and highly recommended weed management strategy and also a key tool in managing herbicide resistance. Soil-applied residual herbicides are especially important to address tall

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