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Kansas Agricultural Experiment Station Research Reports

2017

Large crabgrass

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Full-Text Articles in Life Sciences

Alternatives To Glyphosate For Palmer Amaranth Control In Wheat Stubble, D. E. Peterson, C. Thompson, C. L. Minihan Jan 2017

Alternatives To Glyphosate For Palmer Amaranth Control In Wheat Stubble, D. E. Peterson, C. Thompson, C. L. Minihan

Kansas Agricultural Experiment Station Research Reports

Glyphosate-resistant Palmer amaranth has become a serious weed problem in fields following wheat harvest. A field experiment was established in 2016 near Manhattan, KS, to evaluate herbicide alternatives to glyphosate for Palmer amaranth control in wheat stubble. The two most effective postharvest herbicides for control of Palmer amaranth were Gramoxone (paraquat) or Sharpen (saflufenacil). Clarity (dicamba) and 2,4-D treatments provided suppression of Palmer amaranth, but were inconsistent, and often some plants survived and produced viable seed. The tank-mix of Clarity plus 2,4-D was more effective than either herbicide alone, but not as good as Gramoxone or Sharpen.


Sequential Weed Control Programs In No-Tillage Xtend Soybeans, D. E. Peterson, C. Thompson, C. L. Minihan Jan 2017

Sequential Weed Control Programs In No-Tillage Xtend Soybeans, D. E. Peterson, C. Thompson, C. L. Minihan

Kansas Agricultural Experiment Station Research Reports

The development of glyphosate resistant weeds has greatly complicated weed control in soybeans. Roundup Ready 2 Xtend (dicamba tolerant) soybeans provide growers an alternative herbicide option for preplant and postemergence weed control in soybeans. Preplant programs that included dicamba provided excellent control of giant ragweed. Sequential programs consisting of Envive or Enlite plus glyphosate and dicamba preplant followed by postemergence treatments that included glyphosate and dicamba provided excellent control of henbit, giant ragweed, Palmer amaranth, and large crabgrass.


Sequential Weed Control Programs In Liberty Link Soybeans, D. E. Peterson, C. Thompson, C. L. Minihan Jan 2017

Sequential Weed Control Programs In Liberty Link Soybeans, D. E. Peterson, C. Thompson, C. L. Minihan

Kansas Agricultural Experiment Station Research Reports

The development of glyphosate-resistant weeds has greatly complicated weed control in soybeans. Liberty Link soybeans provide growers an alternative herbicide option for postemergence weed control in soybeans. Liberty Link programs can provide effective weed control in a sequential weed-control program that includes effective preemergence residual herbicides at planting time followed by timely applications of Liberty.


Weed Control Programs For Xtend Soybeans In No-Tillage, D. E. Peterson, C. Thompson, C. L. Minihan Jan 2017

Weed Control Programs For Xtend Soybeans In No-Tillage, D. E. Peterson, C. Thompson, C. L. Minihan

Kansas Agricultural Experiment Station Research Reports

The development of glyphosate-resistant weeds has greatly complicated weed control in soybeans. Roundup Ready 2 Xtend (dicamba tolerant) soybeans provide growers an alternative herbicide option for preplant and postemergence weed control in no-tillage soybeans. Preplant programs that included dicamba provided excellent control of giant ragweed. All sequential programs provided excellent control of the weeds present in the experiment.