Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

If You Use a Screen Reader

This content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.

Difficulty in Controlling Duncecap Larkspur (Delphinium occidentale)

Michael H. Ralphs and David L. Turner
Weed Technology
Vol. 3, No. 2 (Apr. - Jun., 1989), pp. 335-339
Stable URL: http://www.jstor.org/stable/3986945
Page Count: 5
  • Read Online (Free)
  • Download ($29.00)
  • Subscribe ($19.50)
  • Cite this Item
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Difficulty in Controlling Duncecap Larkspur (Delphinium occidentale)
Preview not available

Abstract

Duncecap larkspur was not killed by triclopyr, picloram, or clopyralid applied once at recommended rates. Triclopyr at 1.1, 1.7, 2.2, and 4.6 kg ae/ha applied twice to the same plots in two consecutive years reduced duncecap larkspur density from 29 to 64%. However, the higher rates of triclopyr left 2 $\text{plants}/{\rm m}^{2}$, an unacceptable level for preventing cattle poisoning.

Page Thumbnails

  • Thumbnail: Page 
335
    335
  • Thumbnail: Page 
336
    336
  • Thumbnail: Page 
337
    337
  • Thumbnail: Page 
338
    338
  • Thumbnail: Page 
339
    339