Weed Identification - Ask Extension
Looking for weed identification and if toxic to livestock. Pics are from two nearby properties, but I think are the same plant ??
Knowledgebase
Weed Identification #869674
Asked May 22, 2024, 6:28 PM EDT
Looking for weed identification and if toxic to livestock. Pics are from two nearby properties, but I think are the same plant ??
Mesa County Colorado
Expert Response
Those appear to be Russian knapweed. They are toxic but the probability of livestock consuming them are pretty slim. I have attached a couple of documents concerning Russian knapweed and it's control. Also, one of the fastest ways to determine if it is Russian knapweed is to pull a plant up and look at the roots. They should be dark brown/almost black and have scales.
https://extension.colostate.edu/topic-areas/natural-resources/russian-knapweed-3-111/#:~:text=Russian%20knapweed%20is%20toxic%20to,and%2For%20chemical%20control%20techniques.
chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/https://sam.extension.colostate.edu/wp-content/uploads/sites/2/2018/01/NoxWeedMangementGuide2014TRADelta.pdf
I hope this helps!
Doug
https://extension.colostate.edu/topic-areas/natural-resources/russian-knapweed-3-111/#:~:text=Russian%20knapweed%20is%20toxic%20to,and%2For%20chemical%20control%20techniques.
chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/https://sam.extension.colostate.edu/wp-content/uploads/sites/2/2018/01/NoxWeedMangementGuide2014TRADelta.pdf
I hope this helps!
Doug
