Hostname: page-component-78c5997874-4rdpn Total loading time: 0 Render date: 2024-11-03T08:38:00.623Z Has data issue: false hasContentIssue false

Control of Quackgrass with Pyriclor

Published online by Cambridge University Press:  12 June 2017

K. P. Buchholtz*
Affiliation:
University of Wisconsin, Madison

Abstract

Quackgrass (Agropyron repens (L.) Beauv.) was controlled with applications 1 to 8 months prior to plowing and planting of from 1 to 4 lb/A 2,3,5-trichloro-4-pyridinol (pyriclor). Corn (Zea mays L., hybrid W530) planted on pyriclor-treated plots grew normally and yielded as well as on plots given the standard preplow treatment of 2 lb/A of 2-chloro-4-ethylamino-6-isopropylamino-5-triazine (atrazine). Oats (Avena sativa L., var. Portage) was injured by soil residues of pyriclor from 2-lb/A applications made 20 months previously. Alfalfa (Medicago sativa L., var. Vernal) was somewhat more tolerant of pyriclor than was oats.

Type
Research Article
Copyright
Copyright © 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. Anon. 1966. Trichloropyridonol. World Review of Pest Control. Vol. 5(3). Suppl. Google Scholar
2. Buchholtz, K. P. 1963. Use of atrazine and other triazine herbicides to control quackgrass in corn fields. Weeds 11:202205.CrossRefGoogle Scholar
3. Carder, A. C. 1967. Spot eradication of Agropyron repens (quackgrass) by herbicides. Res. Rept. NCWCC 24:16.Google Scholar
4. Fenster, C. E. and Wicks, G. A. 1966. Control of downy brome and volunteer wheat in wheat stubble for fallow. Res. Rept. NCWCC 23:25.Google Scholar
5. Freeman, J. F., Slack, C. and Darding, R. L. 1966. Directed postemergence herbicide sprays for weed control in corn. Res. Rept. NCWCC 23:84.Google Scholar
6. Nalewaja, J. D. 1966. Evaluation of preemergence herbicides for flax. Res. Rept. NCWCC 23:4243.Google Scholar
7. Schirman, R. and Buchholtz, K. P. 1966. Influence of atrazine on control and rhizome carbohydrate reserves of quackgrass. Weeds 14:233236.Google Scholar
8. Wright, W. G. 1966. Weed control in sorghums. Res. Rept. NCWCC 23:84.Google Scholar