pest photo

Steve Dewey, Utah State University,
Yellow starthistle
Centaurea solstitialis

Yellow starthistle (Centaurea solstitialis) is an invasive plant of rangelands of the western United States. It is a native of the Mediterranean and was first detected in California in the early 1800's.

Currently, 6 biocontrol insects have been released. Research shows a 50% decrease in seed yield with biocontrol.

Map Icon
Survey Maps
Summaries of State Plant Protection Laws and Regulations
Arizona   Idaho   Minnesota   Montana   Oregon   Utah   Wisconsin   Wyoming