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The Compatibility of Rhodamine B Dye with Herbicides for Common Crupina (Crupina vulgaris) Control

Published online by Cambridge University Press:  12 June 2017

David L. Zamora  and
Donald C. Thill
David L. Zamora
Affiliation:
Dep. Plant, Soil, Entomol. Sci., Univ. Idaho, Moscow, ID 83843
Donald C. Thill
Affiliation:
Dep. Plant, Soil, Entomol. Sci., Univ. Idaho, Moscow, ID 83843
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Abstract

The compatibility of rhodamine B dye {N-[9-(2-carboxyphenyl)-6-(diethylamino)-3H-xanthen-3-ylidene]-N-ethyl ethanaminium chloride} with picloram (4-amino-3,5,6-trichloro-2-pyridinecarboxylic acid) or dicamba (3,6-dichloro-2-methoxybenzoic acid) was evaluated in the laboratory and field. Rhodamine B dye formulation (with or without a surfactant) did not affect dry weight of residue precipitated when mixed with dicamba. Formulated dye precipitated 11% more residue than nonformulated dye when mixed with picloram. Common crupina (Crupina vulgaris Cass. # CJNVU) field plant density was higher after applying a picloram spray solution with nonformulated rhodamine B dye compared to picloram alone. Common crupina density and biomass were higher after application with nonformulated dye and dicamba compared to dicamba alone.

Keywords

Picloramdicambamethyl violet 2BCJNVU
Type
Research
Information
Weed Technology , Volume 2 , Issue 1 , January 1988 , pp. 16 - 19
Copyright
Copyright © 1988 by the Weed Science Society of America 

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References

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