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Herbicidal Effects of Picloram on Bermudagrass

Published online by Cambridge University Press:  12 June 2017

L. J. Reber ,
R. K. Miller ,
J. A. Tweedy  and
J. D. Butler
L. J. Reber
Affiliation:
Dep. of Plant Industries, So. Illinois Univ., Carbondale, Illinois 62901
R. K. Miller
Affiliation:
Dep. of Plant Industries, So. Illinois Univ., Carbondale, Illinois 62901
J. A. Tweedy
Affiliation:
Dep. of Plant Industries, So. Illinois Univ., Carbondale, Illinois 62901
J. D. Butler
Affiliation:
Dep. of Hort., Univ. of Illinois, Urbana, Illinois 61801
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Abstract

The herbicide 4-amino-3,5,6-trichloropicolinic acid (picloram) was applied to several bermudagrasses (Cynodon spp.). Most of the grasses were susceptible to picloram; however, some were resistant and recovered within 16 months from the initial treatment. There were no detectable metabolites of 14C picloram in bermudagrass (C. dactylon (L.) Pers. ‘U-3’) or common Kentucky bluegrass (Poa pratensis L.). Also, there were no abnormal changes in cells of swollen nodes of picloram-treated bermudagrass that could explain the selective herbicidal injury of picloram on bermudagrass.

Type
Research Article
Information
Weed Science , Volume 19 , Issue 5 , September 1971 , pp. 521 - 524
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

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