Is this poison hemlock - Ask Extension
We just bought property in Grand Ronde,OR & there is a patch of these weeds that I'm worried are poison Hemlock, looking for a positive ID as to w...
Knowledgebase
Is this poison hemlock #765581
Asked August 03, 2021, 6:44 PM EDT
We just bought property in Grand Ronde,OR & there is a patch of these weeds that I'm worried are poison Hemlock, looking for a positive ID as to what this is & if it IS hemlock, how do I get rid of it, is there someone to come help with that?
Yamhill County Oregon
Expert Response
Hi Cassandra, I am not able to identify the weeds from those photos. There are several plants which are similar in appearance. So it's best to identify it in person. Your best option will be to take a sample into the Yamhill County OSU Extension office.
Since we are concerned whether or not this is poison hemlock, take precautions when obtaining a sample. Wear disposable rubber gloves, long pants, long sleeves, and close-toed shoes. Place them in a clear plastic bag, sealed or tied shut with all plant material inside, so it can be closely examined without touching it.
Here are some publications for you to read about poison hemlock identification.
"Poison Hemlock: identification and control" is from the King County, Washington, Noxious Weed Board.
"Poison Hemlock Identification and Control" from Michigan State University Extension.
From the U.S. Fish and Wildlife Department, "Don't Touch These Plants! Six Lookalikes you want to Avoid".
To get rid of the plants, cut them down and double bag them for disposal in a landfill. (Be sure to wear disposable gloves, long sleeves, long pants, and close toed shoes.) You can then spray the area with a herbicide. The publication from Michigan State has a list of what will work. You will need to treat again each time you see new growth.
Since we are concerned whether or not this is poison hemlock, take precautions when obtaining a sample. Wear disposable rubber gloves, long pants, long sleeves, and close-toed shoes. Place them in a clear plastic bag, sealed or tied shut with all plant material inside, so it can be closely examined without touching it.
Here are some publications for you to read about poison hemlock identification.
"Poison Hemlock: identification and control" is from the King County, Washington, Noxious Weed Board.
"Poison Hemlock Identification and Control" from Michigan State University Extension.
From the U.S. Fish and Wildlife Department, "Don't Touch These Plants! Six Lookalikes you want to Avoid".
To get rid of the plants, cut them down and double bag them for disposal in a landfill. (Be sure to wear disposable gloves, long sleeves, long pants, and close toed shoes.) You can then spray the area with a herbicide. The publication from Michigan State has a list of what will work. You will need to treat again each time you see new growth.
