Japanese hop (Humulus japonicas) is an annual, climbing or trailing vine that is native to eastern Asia. The plant was introduced to North America in the mid-to-late 1880s as an ornamental, and has become invasive in the eastern half of the United States and southeast Canadian provinces. Read about distribution, identification and management of the plant.Read More
This TechNote summarizes research on: 1) Integrating herbicides with other methods for managing yellow starthistle and 2) Controlling coast fiddleneck (Amsinckia menziesii)and yellow starthistle. Also included are practical management tips on herbicide rate and time of application to optimize yellow starthistle control.