UC Weed Science (weed control, management, ecology, and minutia)

wric.ucdavis.edu

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Map from Calflora. Arrows and road names added by Ryan O'Dell.
Article

Invasion of Stinkwort into San Benito County

April 13, 2020
By Devii R Rao
Stinkwort (Dittrichia graveolens) is a very sticky annual weed in the sunflower family with a powerful smell similar to tarweeds (Brownsey et al. 2013). Its first observation in California was in Santa Clara County in 1984.
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Amsinckia 3
Article

Weeds from Droughty Winters

April 6, 2020
As of February 20, fiddleneck (Amsinckia spp.) was flowering in Fresno County. Zero rain fell in the city of Fresno during the month of February. By February 27, a date when the temperature reached 79F in Fresno, the U.S.
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