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Herbicide Combinations for Woody Plant Control

Published online by Cambridge University Press:  12 June 2017

R. W. Bovey ,
F. S. Davis  and
H. L. Morton
R. W. Bovey
Affiliation:
Crops Research Division, Agricultural Research Service, U.S. Department of Agriculture
F. S. Davis
Affiliation:
Crops Research Division, Agricultural Research Service, U.S. Department of Agriculture
H. L. Morton
Affiliation:
Crops Research Division, Agricultural Research Service, U.S. Department of Agriculture
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Abstract

We studied 4-amino-3,5,6-trichloropicolinic acid (picloram) alone and in combination with 2,4,5-trichlorophenoxyacetic acid (2,4,5-T) or 1,1′-dimethyl-4,4′-bipyridinium salt (paraquat) for control of several greenhouse, nursery, and natural-grown, woody plant species. Picloram:paraquat combinations improved the control of some species such as yaupon (Ilex vomitoria Ait.) as compared to picloram alone at equal rates; but it had an antagonistic effect on huisache (Acacia farnesiana (L.) Willd.) and honey mesquite (Prosopis juliflora (Swartz) DC. var. glandulosa (Torr.) Cockerell). Evaluation of picloram: 2,4,5-T combinations suggested that 2,4,5-T sometimes could be added in equal amounts to picloram to increase control or reduce picloram rates proportionately on huisache, honey mesquite and live oak (Quercus virginiana Mill.).

Type
Research Article
Information
Weed Science , Volume 16 , Issue 3 , July 1968 , pp. 332 - 335
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

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