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Chemical Control of Western False Hellebore

Published online by Cambridge University Press:  12 June 2017

M. Coburn Williams  and
L. B. Kreps
M. Coburn Williams
Affiliation:
Crops Research Division, Agr. Res. Serv., U. S. Dep. of Agr., Utah Agr. Exp. Sta., Logan, Utah
L. B. Kreps
Affiliation:
Crops Research Division, Agr. Res. Serv., U. S. Dep. of Agr., Utah Agr. Exp. Sta., Logan, Utah
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Abstract

Several herbicides were evaluated for control of western false hellebore (Veratrum californicum Durand). The dimethylamine salt and propylene glycol butyl ether esters of (2,4-dichlorophenoxy)acetic acid (2,4-D), potassium salt of 2-[(4-chloro-o-tolyl)oxy]propionic acid (mecoprop), and the butoxy ethanol ester of 2-(2,4,5-trichlorophenoxy)propionic acid (silvex) controlled 95 to 99% of the plants when applied at 2 lb/A followed by 2 lb/A of the dimethylamine salt of 2,4-D the second year. Optimum control was achieved when plants were treated after the last leaf had expanded and before flower bud initiation.

Type
Research Article
Information
Weed Science , Volume 18 , Issue 4 , July 1970 , pp. 481 - 483
Copyright
Copyright © 1970 Weed Science Society of America 

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References

Literature Cited

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