Gardening Answers Knowledgebase
Search Results for ' Senecio jacobaea'
PAL Questions: 1 - Garden Tools:
I was just walking through a wild area in Seattle with lots of weeds, and came across some strange caterpillars. They are mostly hairless (to the naked eye, anyway), and are striped black over orange with black legs. Can you tell me what they are?
I believe you may have seen the Cinnabar moth caterpillar, Tyria jacobaeae, which was introduced to the United States to control a noxious weed, tansy ragwort (Senecio jacobaea). Here are pictures to compare, and more information:
Both Washington State's noxious weed control board and King County Noxious Weeds have information on weed control with Cinnabar caterpillars. (See page 5 of the document). Tansy ragwort is a Class B noxious weed, and control is required in King County.
Link to this record only (permalink)
Didn't find an answer to your question? Ask us directly!
We are continually adding new questions, so be sure to keep coming back.
August 03 2016 12:06:47