INTERNATIONAL HERBICIDE-RESISTANT WEED DATABASE

ANNUAL BLUEGRASS (Poa annua)

with GROUP B/2 resistance: (ALS INHIBITORS)
Inhibition of acetolactate synthase ALS (acetohydroxyacid synthase AHAS)
MUTATION: TRYPTOPHAN 574 to LEUCINE







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Chemical FamilyExample HerbicideResistance Level
ImidazolinonesImazethapyr Resistant > 10 fold
PyrimidinylthiobenzoatesBispyribac-Na Resistant > 10 fold
SulfonylureasChlorsulfuron Resistant > 10 fold
TriazolopyrimidinesChloransulam-methyl Not Determined
SulfonylaminocarbonyltriazolinoneFlucarbazone-Na Not Determined

REFERENCES

This case was entered by Patrick Tranel Email: tranel@illinois.edu


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Heap, I.  The International Herbicide-Resistant Weed Database.  Online.  Friday, July 3, 2020 .  Available  www.weedscience.org Copyright © 1993- 2020 WeedScience.org All rights reserved. Fair use of this material is encouraged. Proper citation is requested.