What is this? - Ask Extension
Is this invasive? It does not look like grass or clover which we just planted last month. We had a lot of black dirt brought in; can weed seeds come...
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What is this? #880038
Asked August 03, 2024, 2:20 PM EDT
Is this invasive? It does not look like grass or clover which we just planted last month. We had a lot of black dirt brought in; can weed seeds come in the dirt?
Aitkin County Minnesota
Expert Response
From your first pictures it appears to have already invaded. My Picture This app identifies this as Common Amaranthus. See these web pages.
https://hortsense.cahnrs.wsu.edu/fact-sheet/weeds-redroot-pigweed-rough-pigweed-amaranthus-retroflexus/
https://www.minnesotawildflowers.info/flower/redroot-pigweed
Yes I would call it invasive and weed seeds often come with black soil deliveries.
https://hortsense.cahnrs.wsu.edu/fact-sheet/weeds-redroot-pigweed-rough-pigweed-amaranthus-retroflexus/
https://www.minnesotawildflowers.info/flower/redroot-pigweed
Yes I would call it invasive and weed seeds often come with black soil deliveries.
How would you suggest we get rid of it? There are very large segments of our newly seeded lawn covered in these seedlings. They have grown to about 4” tall.
Thank you for your assistance.
Sue and Dennis Daniello
Aitkin, MN
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Sent from my iPhone
Sent from my iPhone
On Aug 3, 2024, at 2:22 PM, Ask Extension <<personal data hidden>> wrote:
Most of the research based web sites are written for farmers with large fields to treat. Basically, hand pull the weeds, getting as much of the roots as possible and compost them. Or apply a broadleaf herbicide to kill the weed and leave any grass that may be growing. You may have to do this more than once and repeat it next year.
