Hostname: page-component-848d4c4894-r5zm4 Total loading time: 0 Render date: 2024-07-04T19:49:09.370Z Has data issue: false hasContentIssue false
  • English
  • Français

Applying Eptc and Seeding Alfalfa (Medicago sativa) Simultaneously

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. Ctr., Prosser, WA 99350
Get access Rights & Permissions [Opens in a new window]

Abstract

Alfalfa (Medicago sativa L. ‘Vernal′) was seeded broadcast or in drill rows spaced 18 cm apart in the same operation that EPTC (S-ethyl dipropylcarbamothioate) was applied. For broadcast seeding, EPTC was applied as herbicide-treated crop seed, as granules mixed with crop seed, or as granules applied with the crop seed, but with the seed and granules carried in separate boxes on the seeder. For drill-row seeding, EPTC was applied between the rows in subsurface lines as a liquid or granular formulation; and within the rows as herbicide-treated seed, as granules mixed with the seed, or as granules carried in a box separate from the seed. Weed control and crop tolerance with the more effective simultaneous applications of EPTC were similar to those with conventional preplant-incorporated applications. To seed alfalfa (either broadcast or in drill rows) and apply EPTC in one operation, the methods wherein untreated seed and a granular formulation of EPTC were applied together but from separate boxes on the seeder were the most practical, because the mechanical components, the seed, and the formulated herbicide are all commercially available.

Keywords

Herbicide-treated seedgranular formulationEchinochloa crus-galliChenopodium albumSolanum sarrachoidesAmaranthus spp.Lolium multiflorumECHCGCHEALSOLSAAMAREAMAPO
Type
Weed Control and Herbicide Technology
Information
Weed Science , Volume 35 , Issue 1 , January 1987 , pp. 80 - 88
Copyright
Copyright © 1987 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. Dawson, J. H. 1980. Selective weed control from EPTC applied with seed of alfalfa (Medicago sativa). Weed Sci. 28:607–611.CrossRefGoogle Scholar
2. Dawson, J. H. 1981. Selective weed control with EPTC-treated seed of alfalfa (Medicago sativa). Weed Sci. 29:105–110.Google Scholar
3. Dawson, J. H. 1983. Tolerance of alfalfa (Medicago sativa) to EPTC. Weed Sci. 31:103–108.Google Scholar
4. Dawson, J.H. and Dell'Agostino, E. 1978. Control of foxtail millet (Setaria italica) in new seedings of alfalfa (Medicago sativa) with EPTC applied in subsurface lines. Weed Sci. 26:637–639.Google Scholar
5. Dawson, J. H. and Harvey, R. G. 1981. Management systems for weeds in alfalfa. Pages 303–315 in Pimentel, David, ed. Handbook of Pest Management in Agriculture. CRC Press, Inc., Boca Raton, FL.Google Scholar
6. Obrigawitch, T., Martin, A. R., and Roeth, F. W. 1983. Degradation of thiocarbamate herbicides in soils exhibiting rapid EPTC breakdown. Weed Sci. 31:187–192.Google Scholar
7. Peters, E. J. 1964. Pre-emergence, preplanting and postemergence herbicides for alfalfa and birdsfoot trefoil. Agron. J. 56:415–419.Google Scholar
8. Peters, E. J. and Peters, R. A. 1972. Weeds and weed control. Pages 555–573 in Hanson, C. H., ed. Alfalfa Science and Technology. Am. Soc. Agron. Monograph 15.Google Scholar
9. Schreiber, M. M. 1960. Pre-emergence herbicides on alfalfa and birdsfoot trefoil. Weeds 8:291–299.Google Scholar