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Recently, this weed has been spread to other
parts of the nation. It is a highly competitive weed that has
developed resistance to many herbicides, making it difficult to
control. It is a very prolific seed producer, producing up to
250,000 seeds from one plant.
As you spend time in your fields this summer, be on the lookout
for Palmer amaranth. If you suspect Palmer amaranth is on your
property, contact your local county extension agent or crop
consultant for recommendations for control. You can take steps
to help prevent further infestation by not entering affected
areas, and always cleaning vehicles, equipment and clothing that
has come in contact with the weed.
Those planting grasses and flower mixes for conservation
plantings should only use local reputable sources. Obtaining a
seed laboratory report before purchasing a seed mix is
recommended. Reject any seed lots which have “pigweed” or
“amaranth” as a weed component unless the pigweed seed has been
genetically tested to not be Palmer amaranth.
Click here to learn more about Palmer amaranth and how to
identify it.
[USDA Farm Service Agency]
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