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Broadleaf Weed Control in Potatoes (Solanum tuberosum) with Postemergence Directed Herbicides

Published online by Cambridge University Press:  12 June 2017

Charlotte V. Eberlein ,
Mary J. Guttieri  and
Felix N. Fletcher
Charlotte V. Eberlein
Affiliation:
Dep. Plant, Soil, Entomol. Sci., Univ. Idaho, Aberdeen, ID 83210
Mary J. Guttieri
Affiliation:
Dep. Plant, Soil, Entomol. Sci., Univ. Idaho, Aberdeen, ID 83210
Felix N. Fletcher
Affiliation:
Dep. Plant, Soil, Entomol. Sci., Univ. Idaho, Aberdeen, ID 83210
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Abstract

Field studies were conducted to evaluate potato injury and weed control with postemergence-directed (PDIR) bromoxynil, glufosinate, or monocarbamide dihydrogen sulfate (MCDS). All three herbicides controlled hairy nightshade, common lambsquarters, redroot pigweed, and kochia ≥ 85%, depending on rate, with either mid- or late-PDIR treatment. Bromoxynil or MCDS caused 5 to 6% more initial injury with mid- than with late-PDIR treatment, but total yield and yield of U.S. #1 tubers were not reduced by either herbicide. PDIR glufosinate caused moderate injury at 0.84 kg ha−1, the rate needed for acceptable (≥ 85%) weed control. Total yield was reduced 10% and U.S. #1 yield was reduced 30% by PDIR glufosinate at 0.84 kg ha−1. Thus bromoxynil and MCDS showed potential for use as PDIR treatments in potatoes, but glufosinate did not.

Keywords

Bromoxynil, 3,5-dibromo-4-hydroxybenzonitrileglufosinate, 2-amino-4-(hydroxymethylphosphinyl)butanoic acidcommon lambsquarters, Chenopodium album L. # CHEALhairy nightshade, Solanum sarrachoides Sendtner # SOLSAkochia, Kochia scoparia (L.) Schrad. # KCHSCredroot pigweed, Amaranthus retroflexus L. # AMAREpotato, Solanum tuberosum L. ‘Russet Burbank’Bromoxynilglufosinatemonocarbamide dihydrogen sulfateAmaranthus retroflexusChenopodium albumKochia scopariaSolanum sarrachoidesAMARECHEALKCHSCSOLSA
Type
Research
Information
Weed Technology , Volume 7 , Issue 2 , June 1993 , pp. 298 - 303
Copyright
Copyright © 1993 Weed Science Society of America 

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References

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