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Tag "Pigweed"

Iowa: Time to Scout CRP for Palmer Pigweed?

Iowa: Time to Scout CRP for Palmer Pigweed?

👤By Bob Hartzler, Iowa State University 🕔May 15, 2017

Iowa State University Extension weed specialist Bob Hartzler decided to take advantage of the great weather and see if Palmer amaranth could be identified in CRP fields where it was introduced last year.

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Virginia Cotton: Warrant and Cool, Wet Soils

Virginia Cotton: Warrant and Cool, Wet Soils

👤By Charlie Cahoon, Virginia Cooperative Extension 🕔May 12, 2017

Warrant is an encapsulated formulation of the herbicide acetochlor and has widely become a part of our postemergence (POST) herbicide program in cotton.  Although Warrant does not control emerged weeds, it does provide excellent residual control of pigweed, other small

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Tennessee Cotton: Strategy to Consider with Shortages of Caparol, Cotoran, and Diuron

Tennessee Cotton: Strategy to Consider with Shortages of Caparol, Cotoran, and Diuron

👤By Larry Steckel, University of Tennessee 🕔May 9, 2017

Judging by calls there is a good deal of frustration with the lack of Caparol, Cotoran and Diuron.  A lot of folks are scrambling trying to come up with a Plan B or even a Plan C as cotton planters

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Herbicide Resistance: Dicamba Not Effective on Some Pigweed Populations, Says Study

Herbicide Resistance: Dicamba Not Effective on Some Pigweed Populations, Says Study

👤By Larry Steckel, University of Tennessee 🕔May 5, 2017

Last summer, researchers with University of Arkansas and University of Tennessee found several populations of palmer pigweed that showed tolerance to dicamba and mesotrione in addition to resistance to glyphosate and PPO inhibitors.

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Iowa: Palmer Amaranth in Conservation Planting – Updated Regulations

Iowa: Palmer Amaranth in Conservation Planting – Updated Regulations

👤By Bob Hartzler, Iowa State University 🕔May 2, 2017

The widespread introduction of Palmer amaranth across Iowa in 2016 provides abundant sources for seed to spread into new, uninfested areas. No field in Iowa is safe.

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Iowa Weeds: Palmer Pigweed Control – Milestone vs. 2,4-D in CRP

Iowa Weeds: Palmer Pigweed Control – Milestone vs. 2,4-D in CRP

👤By Bob Hartzler, Iowa State University 🕔May 2, 2017

Milestone is a ‘newer’ Group 4 herbicide from Dow AgroSciences which has the advantage over other Group 4 products in that it is safe on many native forbs. However, there is limited information on its effectiveness on Palmer amaranth or

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Texas Row Crops: Be on the Lookout for Flowering Pigweed

Texas Row Crops: Be on the Lookout for Flowering Pigweed

👤By Muthu Bagavathiannan, Josh McGinty, Vijay Singh, Peter Dotray and Gaylon Morgan 🕔Apr 28, 2017

Palmer amaranth and waterhemp are two pigweed species that have become problematic in row crop production fields in Texas. Palmer amaranth is widespread in the High Plains, Rio Grande Valley, Coastal Bend and Central Texas regions, whereas waterhemp is predominantly

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Michigan Wheat: Timing Is Everything When Controlling Weeds

Michigan Wheat: Timing Is Everything When Controlling Weeds

👤By Christy Sprague, Michigan State University Extension 🕔Apr 27, 2017

In winter wheat fields where herbicide applications have not been made, it is important to understand what the cutoff application stages are for the different herbicides.

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Super Weed, Palmer Amaranth: May Soon Not Be So Super

Super Weed, Palmer Amaranth: May Soon Not Be So Super

👤By Kathy Keatley Garvey, University of California Cooperative Extension 🕔Apr 5, 2017

A super weed commonly known as Palmer amaranth or Palmer pigweed (Amaranthus palmeri) may soon not be so super. In first-of-its-kind research, a 10-member international team of scientists, led by Maor Matzrafi of the Hebrew University of Jerusalem, Ittai Herrmann

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Palmer Pigweed: 2 New Mechanisms for Herbicide Resistance Found

Palmer Pigweed: 2 New Mechanisms for Herbicide Resistance Found

👤By Lauren Quinn, University of Illinois 🕔Apr 4, 2017 Read Full Article