INTERNATIONAL HERBICIDE-RESISTANT WEED DATABASE

MAYWEED CHAMOMILE (Anthemis cotula)

with GROUP B/2 resistance: (ALS INHIBITORS)
Inhibition of acetolactate synthase ALS (acetohydroxyacid synthase AHAS)
MUTATION: PROLINE 197 to SERINE







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

NOTE
Different Pro197 substitutions were present within populations, and therefore specific cross resistance patterns conferred by specific substitutions are confounded.

REFERENCES

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


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