Hostname: page-component-586b7cd67f-r5fsc Total loading time: 0 Render date: 2024-11-27T11:33:53.201Z Has data issue: false hasContentIssue false
  • English
  • Français

Newly Seeded Alfalfa (Medicago sativa) Tolerates Glyphosate and SC-0224 at Doses That Control Dodder (Cuscuta spp.)

Published online by Cambridge University Press:  12 June 2017

Jean H. Dawson
Jean H. Dawson*
Affiliation:
Agric. Res. Serv., U.S. Dep. Agric., Irrigated Agric. Res. and Ext. Cent., Prosser, WA 99350
Get access Rights & Permissions [Opens in a new window]

Abstract

Newly seeded alfalfa tolerated glyphosate applied from the 8-trifoliolate leaf stage (17 cm tall) to the pre-bud stage (34 cm tall) at 75 or 150 g ae ha-1. Injury symptoms were moderate and temporary. Glyphosate at 300 g ha-1 suppressed alfalfa severely and killed 30% of the plants when applied at the smallest (3-trifoliolate) stage of alfalfa growth. Alfalfa responded similarly to glyphosate and SC-0224.

Keywords

Glyphosate, N-(phosphonomethyl)glycineSC-0224 (sulfosate), trimethylsulfonium carboxymethylaminomethylphosphonatealfalfa, Medicago sativa L.dodder, Cuscuta spp.Crop suppressionherbicideparasitic weedstand establishmentselective control
Type
Research
Information
Weed Technology , Volume 4 , Issue 4 , December 1990 , pp. 876 - 879
Copyright
Copyright © 1990 Weed Science Society of America 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Literature Cited

1. Dawson, J. H. 1971. Establishing alfalfa on dodder-infested soil. Weed Sci. 19:222–225.Google Scholar
2. Dawson, J. H. 1989. Dodder (Cuscuta spp.) control in established alfalfa (Medicago sativa) with glyphosate and SC-0224. Weed Technol. 3:552–559.Google Scholar
3. Dawson, J. H. 1989. Established forage alfalfa (Medicago sativa) tolerates glyphosate and SC-0224 applied to control dodder (Cuscuta spp.). Weed Technol. 3:560–565.CrossRefGoogle Scholar
4. Dawson, J. H. 1991. Dodder (Cuscuta spp.) control in newly seeded alfalfa (Medicago sativa) with glyphosate. Weed Technol. 4:880–885.Google Scholar
5. Dawson, J. H. and Saghir, A. R. 1983. Herbicides applied to dodder (Cuscuta spp.) after attachment to alfalfa (Medicago sativa). Weed Sci. 31:465–471.Google Scholar
6. Weed Science Society of America. 1989. Herbicide Handbook of the Weed Science Society of America, Sixth Edition. Weed Sci. Soc. Am., Champaign, IL p. 146–149.Google Scholar