INTERNATIONAL HERBICIDE-RESISTANT WEED DATABASE

MAYWEED CHAMOMILE (Anthemis cotula)

with GROUP B/2 resistance: (INHIBITION OF ACETOLACTATE SYNTHASE )
Inhibition of Acetolactate Synthase
MUTATION: PROLINE 197 to LEUCINE







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