International Survey of Herbicide-Resistant Weeds

Countries Weeds Herbicides Mutations Graphs References Researchers
PALMER AMARANTH (Amaranthus palmeri)

with GROUP B/2 resistance: (ALS INHIBITORS)
Inhibition of acetolactate synthase ALS (acetohydroxyacid synthase AHAS)
MUTATION: SERINE 653 to ASPARAGINE







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Chemical FamilyExample HerbicideResistance Level
ImidazolinonesImazethapyr Not Determined
PyrimidinylthiobenzoatesBispyribac-Na Not Determined
SulfonylureasChlorsulfuron Not Determined
TriazolopyrimidinesChloransulam-methyl Not Determined
SulfonylaminocarbonyltriazolinoneFlucarbazone-Na Not Determined

NOTE

The Molin et al. 2016 paper reported this mutation in Palmer amaranth but it was not characterized. 

Berger et al. 2016 also identified but did not characterize this mutation. 


REFERENCES

This case was entered by Patrick Tranel Email: tranel@illinois.edu
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Cite this site as: Heap, I.  The International Survey of Herbicide Resistant Weeds.  Online.  Internet.  Wednesday, May 24, 2017 .  Available  www.weedscience.org
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