Blogging by the Bushel
With numerous challenges over the past several years for producers, we at Mercer Landmark understand the need for a comprehensive risk management solution. We seek to provide our customers with unparalleled service to ensure maximum results.

BY: Amy Battles – Mercer Landmark Agronomist

Prohibit: 1) To forbid by law or authority
2) To hinder or prevent

“It’s arguably the worst weed problem to hit agronomic crops in the southern United States. We’ve watched cotton fields being mowed down before harvest because of Palmer amaranth.”
–Bill Johnson, Purdue Extension Weed Scientist

A few quick facts based on recent publications put out by Ohio State and Purdue University:

  1. According to Ohio State University, “There appears to be somewhat of an epicenter of new Palmer amaranth infestations in an area southwest of Columbus, bordered roughly by Midway on the north and Washington CH on the south.” There is a local dairy in the area that has been feeding products that contain cottonseed hulls that have been transported to the dairy from somewhere in the South.
  2. Mercer Landmark agronomists and Mark Loux, OSU Weed Scientist, have identified 2 fields containing palmer amaranth in the Mercer Landmark sales area. The plants have been removed from the fields.
  3. Palmer Amaranth has been confirmed in 20 counties in Indiana, mainly in the top 1/3 portion of the state. The closest counties with confirmed cases of palmer amaranth are Adams, Noble, and Huntington Counties.

Below are a few pictures of Palmer amaranth taken in St. Joseph County, Indiana in July of this year.


Purdue Extension recently published an updated bulletin called, “Palmer Amaranth Biology, Identification, and Management” which can be found by clicking HERE.

Words cannot express how important it is that we take preventative action against what scientists are calling, “the most serious agronomic weed challenge that we have had.” If you see any suspicious or unfamiliar weeds in your fields please talk with your local Mercer Landmark Agronomist before it is too late.

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