International Survey of Herbicide-Resistant Weeds

Countries Weeds Herbicides Mutations Graphs References Researchers
CATCHWEED BEDSTRAW (Galium aparine)

with GROUP B/2 resistance: (INHIBITION OF ACETOLACTATE SYNTHASE )
Inhibition of Acetolactate Synthase
MUTATION: TRYPTOPHAN 574 to GLYCINE







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Chemical FamilyExample HerbicideResistance Level
ImidazolinonesImazethapyr Not Determined
Pyrimidinyl benzoates Bispyribac-Na Not Determined
SulfonylureasChlorsulfuron Resistant > 10 fold
Triazolopyrimidine - Type 1 Chloransulam-methyl Not Determined
Triazolinones Flucarbazone-Na Not Determined

NOTE
Two additional ALS amino acid substitutions were identified in the R biotype, so it is not certain if the Trp574Gly substitution confers resistance and/or if one of the other substitutions plays a role.

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.  Tuesday, December 10, 2024 .  Available  www.weedscience.org
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