pest photo

Steve Dewey, Utah State University, Bugwood.org
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.

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News

10/01/2019 - Feds to unleash weevil against starthistle
10/01/2019 - US approves releasing non-native insect weevil to control thistle
10/01/2019 - USDA Approves Release of Weevil to Control Yellow Starthistle,...
07/16/2019 - Summit County has a secret weapon in fight against noxious wee...
06/03/2019 - Invasive Species Threaten California's Economy and Ecology, UC...
09/21/2018 - Invasive starthistle continues to migrate to new locations in ...
09/21/2018 - Noxious weed of the month: yellow starthistle
04/24/2018 - Weed eaters
03/20/2018 - Western States, Wyoming Wage War On Invasive Species
11/02/2017 - Carson City's effort to control weeds is extensive
09/29/2017 - Is this noxious weed on your property?
07/13/2017 - Bonneville County Weed Control uses insects to stop invasive w...
05/08/2015 - Yellow Starthistle: Invasive plants and the Earth-Friendly Chr...
04/08/2014 - Yellow Star Thistle - Volunteers Tackle a Thorny Problem
03/27/2014 - In Ranchers Vs. Weeds, Climate Change Gives Weeds An Edge
03/24/2014 - There are Many Reasons to Hate Invasive Weeds
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