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Efficacy of Postharvest Herbicides on Russian Thistle (Salsola iberica) Control and Seed Germination

Published online by Cambridge University Press:  12 June 2017

Frank L. Young  and
Ralph E. Whitesides
Frank L. Young
Affiliation:
U.S. Dep. Agric., Agric. Res. Serv.
Ralph E. Whitesides
Affiliation:
Dep. Agron. and Soils, Washington State Univ., Pullman, WA 99164-6420
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Abstract

Field and laboratory studies were conducted to evaluate the efficacy of several herbicides applied after small-grain harvest on Russian thistle (Salsola iberica Sennen and Pau # SASKR) control and subsequent seed germination. Best postharvest control of Russian thistle was with chlorsulfuron {2-chloro-N-[[(4-methoxy-6-methyl-1,3,5-triazin-2-yl)amino] carbonyl] benzenesulfonamide} treatments, paraquat (1,1′-dimethyl-4,4′-bipyridinium ion), and bromoxynil (3,5-dibromo-4-hydroxybenzonitrile) plus metribuzin [4-amino-6-(1,1-dimethylethyl)-3-(methylthio)-1,2,4-triazin-5(4H)-one], where control ranged from 73 to 96%. During the summer-fallow year, chlorsulfuron and paraquat decreased Russian thistle population and biomass compared to the untreated control. Germination of large seeds from plants treated with paraquat and both rates of chlorsulfuron was reduced at least 64% compared to seeds of similar size from untreated plants.

Keywords

Conservation tillagedicambaglyphosatechlorsulfuronparaquat2,4-D aminebromoxynilmetribuzinSASKR
Type
Weed Control and Herbicide Technology
Information
Weed Science , Volume 35 , Issue 4 , July 1987 , pp. 554 - 559
Copyright
Copyright © 1987 by the Weed Science Society of America 

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References

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