| Reduced Risk Status: |
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| IPM Compatibility: |
Per Requester: Very Good Fit; There is a growing need to investigate the potential of metamitron herbicide for use in carrot production, particularly in light of increasing pigweed resistance to linuron, a key herbicide currently used in the crop. Metamitron shares structural similarities with metribuzin, which is labeled for postemergence use in carrots after the crop has developed 5 to 6 true leaves. Further research is warranted to evaluate crop safety, application timing, and efficacy against problematic weed species:06/25;
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| Reasons for need: |
Pigweeds, lambsquarters, other weeds. Pigweeds in NYS and other locations have confirmed resistance to linuron, a key herbicide. Herbicides for use in carrots are limited:06/25;
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| Requesting State(s): |
NY:Sosnoskie, L* ;
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| PCR Use Pattern: |
Make 3 broadcast applications of metamitron at 1.03 lb ai/a. The first shall be made preemergence (PRE) after seeding but prior to crop emergence, while the second and third shall be 7-10 days apart, beginning when weeds are in cotyledon stage. Alternatively, the PRE application may be 1.25 lb ai/a followed by postemergence applications of 0.94 lb ai/a. A total postemergence program is also allowed; three applications at 1.03 lb ai/a, 7-10 days apart, beginning when weeds are cotyledon stage. Registrant advice is needed on appropriate adjuvant(s) for postemergence applications.
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| EPA Default Residue Trials: |
3 5 6 10-4 11, 1 DECLINE TRIAL
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| IR-4 Residue Trial Plan: |
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| Efficacy/Crop Safety (E/CS) Data Required: |
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| Label Use Pattern Submitted To EPA: |
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