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Control of Live Oak by Herbicides Applied at Various Rates and Dates

Published online by Cambridge University Press:  12 June 2017

R. W. Bovey,
H. L. Morton and
J. R. Baur
R. W. Bovey
Affiliation:
Crops Research Division, Agr. Res. Serv., U.S. Dep. of Agr.
H. L. Morton
Affiliation:
Crops Research Division, Agr. Res. Serv., U.S. Dep. of Agr.
J. R. Baur
Affiliation:
Crops Research Division, Agr. Res. Serv., U.S. Dep. of Agr.
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Abstract

Herbicides 4-amino-3,5,6-trichloropicolinic acid (picloram) and 5-bromo-3-sec-butyl-6-methyluracil (bromacil) effectively controlled live oak (Quercus virginiana Mill.) when applied in the spring and fall in south Texas. A mixture of picloram plus (2,4,5-trichlorophenoxy)acetic acid (2,4,5-T) also was effective. Higher rates of bromacil were required than for picloram or picloram plus 2,4,5-T for effective control. Bromacil was more injurious to herbaceous vegetation. The phenoxy herbicides (2,4-dichlorophenoxy)acetic acid (2,4-D) and 2,4,5-T were ineffective.

Information

Type
Research Article
Information
Weed Science , Volume 17 , Issue 3 , July 1969, pp. 373 - 376
Copyright
Copyright © 1969 Weed Science Society of America 

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References

Literature Cited

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