Hostname: page-component-cd9895bd7-p9bg8 Total loading time: 0 Render date: 2024-12-30T19:47:21.638Z Has data issue: false hasContentIssue false
  • English
  • Français

Winter Annual Grass Weed Control in Italian Ryegrass with Ethofumesate

Published online by Cambridge University Press:  12 June 2017

W.O. Lee
W.O. Lee*
Affiliation:
U.S. Dep. Agric., Dep. Agron. Crop Sci., Oregon State Univ., Corvallis, OR 97331
Get access Rights & Permissions [Opens in a new window]

Abstract

Ethofumesate (2-ethoxy-2,3-dihydro-3,3-dimethyl-5-benzofuranyl methanesulfonate) applied preemergence or early postemergence at 0.8 to 4.5 kg/ha eliminated annual bluegrass (Poa annua L.) in Italian ryegrass (Lolium multiflorum Lam.) seed fields. Rattail fescue (Festuca myuros L.) was more difficult to control. The 0.8 kg/ha rate controlled only 55% of the rattail fescue. Rates of 1.1 to 1.7 kg/ha controlled 72 to 95% and rates of 2.2 to 4.5 kg/ha eliminated rattail fescue. All ethofumesate treatments except one, 2.2 kg/ha applied postemergence in Experiment 7, reduced weed competition enough so that ryegrass seed yields were increased. At 4.5 kg/ha, a rate double that required to eliminate rattail fescue, seed yields were as high or higher than at 2.2 kg/ha rate, indicating that ethofumesate has at least a twofold safety margin on Italian ryegrass. The germination of ryegrass seed harvested from plots treated with ethofumesate at 0, 2.2, and 4.5 kg/ha was not affected by the treatments.

Type
Research Article
Information
Weed Science , Volume 25 , Issue 3 , May 1977 , pp. 252 - 255
Copyright
Copyright © 1977 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. Bingham, S.W., Schmidt, R.E., and Curry, C.K. 1969. Annual bluegrass control in overseeded bermudagrass putting green turf. Agron. J. 61:456–8.CrossRefGoogle Scholar
2. Chilcote, D.O. 1969. Burning fields boosts grass seed yields. Crops Soils 21:18.Google Scholar
3. Ferguson, M.H. 1961. Consider the dormant turf. Golf Course Rep. 29:16.Google Scholar
4. Lee, W.O. 1973. Clean grass seed crops established with activated carbon bands and herbicides. Weed Sci. 21:537–541.CrossRefGoogle Scholar
5. Schery, R.W. 1973. New challenges, opportunities face the lawn seed industry. Crops Soils 25:8–11.Google Scholar