Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
-am) A FS 29 Reprinted January 1977 Bull Thistle Fo IS ht r m P U tp o :// s BL ex t c IC te ur A ns re TI io nt ON n. in or fo IS eg rm O on at U st ion T O at : F e. D ed A u/ TE ca . ta lo g Scientific name: Cirsium vulgare Biennial Flowers pink to purple Lower leaf surface with hairs Stalk prickly TH Seeds plumed Bull thistle is a coarse, prickly biennial or a short-lived perennial. It may be distinguished from Canada thistle by the taproot. The leaves appear in a rosette during the first year. A flowering stem develops the second year. Bull thistle is found in overgrazed pastures, particularly in heavy, moist soils. Control: Use 1 to 1 1/2 pounds 2,4-D ester per acre in the rosette to early-bud stage of growth. Add a spreader-sticker. By Martin Zimmerman, Sherman County Extension Agent, Oregon State University OREGON STATE UNIVERSITY EXTENSION PI SERVICE Extension Service, Oregon State University, Corvallis, Henry A. Wadsworth, director. This publication was produced and distributed in furtherance of the Acts of Congress of May 8 and June 30, 1914. Extension work is a cooperative program of Oregon State University, the U. S. Department of Agriculture, and Oregon counties. Extension invites participation in its programs and offers them equally to all people, without discrimination.