Hostname: page-component-cd9895bd7-7cvxr Total loading time: 0 Render date: 2024-12-24T18:49:46.340Z Has data issue: false hasContentIssue false

Msma and Dsma for Removing Grass Weeds From Grass-Legume Seedlings

Published online by Cambridge University Press:  12 June 2017

E. J. Peters
Affiliation:
Agr. Res. Serv., U.S. Dept. of Agr., Columbia, MO 65201
S. A. Lowance
Affiliation:
Agr. Res. Serv., U.S. Dept. of Agr., Columbia, MO 65201

Abstract

MSMA (monosodium methanearsonate) and DSMA (disodium methanearsonate) were applied to seedling orchardgrass (Dactylis glomerata L.) – alfalfa (Medicago sativa L. ‘WL-304′) and reed canarygrass (Phalaris arundinacea L. ‘Ioreed’)-birdsfoot trefoil (Lotus corniculatus L. ‘Dawn’) mixtures before grasses were beyond the three-leaf stage. MSMA and DSMA controlled foxtails (Setaria spp.), large crabgrass [Digitaria sanguinalis (L.) Scop.] and fall panicum (Panicum dichotomiflorum Michx.), but were not effective on barnyardgrass [Echinochloa crus-galli (L.) Beauv.]. The addition of 2,4-DB [4-(2,4-dichlorophenoxy)butyric acid] or bromoxynil (3,5-dibromo-4-hydroxybenzonitrile) to MSMA or DSMA increased broadleaf weed control over that obtained with MSMA or DSMA alone. The forage mixtures tolerated 2 to 3 kg/ha of MSMA or DSMA and increased in yield when weeds were controlled. Elemental arsenic found in the forage increased in forage as the rates of MSMA or DSMA increased. Eighty-six to 96% less arsenic was found in early-than in late-treated forage.

Type
Research Article
Copyright
Copyright © 1974 by the 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. Ahrens, J.H. and Olson, A.R. 1961. Prevention and control of crabgrass in lawns. Conn. Agr. Exp. Sta. Bull. 642. 8 pp.Google Scholar
2. Long, J.A., Allen, W.W., and Holt, C.E. 1962. Control of nutsedge in bermudagrass turf. Weeds 10:285287.Google Scholar
3. Peters, E.J. and Peters, R.A. 1972. Weeds and Weed Control. Pages 555573 in Hanson, C.H., ed. Alfalfa Science and Technology. Amer. Soc. Agron. pp. 555573.Google Scholar
4. Rumburg, C.E., Engel, R.E., and Meggitt, W.F. 1960. Effect of temperature on the herbicidal activity and translocation of arsenicals. Weeds 8:582588.Google Scholar