Answer:
1880s
Cheatgrass was first recorded in New York and Pennsylvania in 1861. However, cheatgrass was not introduced in the western United States until the 1880s. It was first recorded in Ontario in 1986, in Washington in 1893, and in Utah in 1894. It was planted in Washington in 1898 in a search for new grasses for the area.
Explanation:Correct me if im wrong