Tansy < Cinnabar Moth - Ask Extension
Hi! Is OSU still distributing the cinnabar moth caterpillar? Is it possible for landowners to request some? Thank you!
Knowledgebase
Tansy < Cinnabar Moth #840880
Asked July 16, 2023, 3:07 AM EDT
Hi! Is OSU still distributing the cinnabar moth caterpillar? Is it possible for landowners to request some? Thank you!
Clackamas County Oregon
Expert Response
Greetings,
The Oregon Department of Agriculture used to have a program where cinnabar moths could be obtained, but they do not currently. The moths have had an established population in the Willamette Valley, and are still present along with a couple other biological control agents, however this year I have had many requests for the cinnabar moth, so perhaps population dynamics are changing.
Below are some links to information about managing tansy ragwort: Management options for tansy ragwort in forest land: preventive steps; biological, chemical, and mechanical controls, plus grazing. Includes description of weed and its life cycle, history of infestation in the U.S. and West, and sources of more information.
You might also contact the ODA Noxious Weed Program and let them know of your interest in the cinnabar moth program.
The Oregon Department of Agriculture used to have a program where cinnabar moths could be obtained, but they do not currently. The moths have had an established population in the Willamette Valley, and are still present along with a couple other biological control agents, however this year I have had many requests for the cinnabar moth, so perhaps population dynamics are changing.
Below are some links to information about managing tansy ragwort: Management options for tansy ragwort in forest land: preventive steps; biological, chemical, and mechanical controls, plus grazing. Includes description of weed and its life cycle, history of infestation in the U.S. and West, and sources of more information.
You might also contact the ODA Noxious Weed Program and let them know of your interest in the cinnabar moth program.
Hi Teagan,
A few days ago, we found a tansy on our property covered in cinnabar caterpillars. You were right! We just needed to be patient. :)
Thank you for your help,
Erica
