Hostname: page-component-cd9895bd7-p9bg8 Total loading time: 0 Render date: 2024-12-22T19:37:49.737Z Has data issue: false hasContentIssue false
  • English
  • Français

Preemergence Weed Control in Garden Chrysanthemums

Published online by Cambridge University Press:  12 June 2017

R. E. Widmer ,
D. B. White  and
W. H. Gray
R. E. Widmer
Affiliation:
Department of Horticultural Science
D. B. White
Affiliation:
Department of Horticultural Science
W. H. Gray
Affiliation:
West Central Experiment Station, Morris, Minnesota
Get access Rights & Permissions [Opens in a new window]

Abstract

Nineteen granular herbicides were applied at two rates to garden chrysanthemums (Chrysanthemum morifolium Ram.) in plantings at St. Paul and Morris, Minnesota. The soil at St. Paul was classified as silt loam and at Morris, as clay loam. All herbicides were applied to freshly cultivated plots which then were irrigated. The compound a,a,a-trifluoro-2,6-dinitro-N,N-dipropyl-p-toluidine (trifluralin) at 8 lb/A gave excellent weed control at both locations; trifluralin at 4 lb/A gave 99% and 97% weed control at St. Paul and Morris, respectively; 3-amino-2,5-dichlorobenzoic acid (amiben) at 6 lb/A gave 99% control at Morris and 76% control at St. Paul; 2,6-dichlorobenzonitrile (dichlobenil) at 3 lb/A gave 93% control at St. Paul and 88% at Morris. Application of 2,4-bis(isopropylamino)-6-methylmercapto-s-triazine (prometryne) at 8 lb/A gave excellent weed control at both locations but caused serious injury to the chrysanthemums.

Type
Research Article
Information
Weed Science , Volume 16 , Issue 1 , January 1968 , pp. 42 - 45
Copyright
Copyright © 1968 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. Didario, A. 1961. Evaluation of Dacthal in ornamentals. Proc. SWC 14:158–163.Google Scholar
2. Knake, E. L. 1963. Liquid vs granular preemergence herbicides. Agr. Chem. 18(5):52, 55.Google Scholar
3. Mahlstede, J. P. and Lovely, W. G. 1963. Application of granular herbicides to ornamental plant materials. Proc. NCWCC 19:38–39.Google Scholar
4. Pridham, A. M. S. 1957. Granular versus miscible CIPC in relation to crop and weed growth in Chrysanthemum morifolium . Proc. NEWCC 11:76–79.Google Scholar
5. Stadtherr, R. J. and Widmer, R. E. 1959. Chemical weed control in garden chrysanthemums. Weeds 7:82–87.Google Scholar
6. Widmer, R. E. and Stadtherr, R. J. 1961. Post-planting weed control in garden chrysanthemums. Weeds 9:204–208.CrossRefGoogle Scholar