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Back to Registered Crop Input Products
Registered Crop Input Products / PERIMETER® III Herbicide

PERIMETER® III Herbicide

PCP #35451 · FMC of Canada Limited · Herbicide

Group 4

Group 4 herbicide containing fluroxypyr for control and suppression of broadleaf weeds in spring and winter cereals. Effective on cleavers, kochia (including ALS resistant biotypes), volunteer flax, round-leaved mallow, chickweed, and other broadleaf weeds. Can be applied alone or in tank mixes with other herbicides for expanded weed spectrum including grassy weeds.

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Registered uses (45)

Crop × pest × application rate combinations from the official label. Rates converted to per-acre. Always confirm against the official label PDF before applying.

CropTargetRatePHI
BarleyChickweed, cleavers, kochia (incl. ALS resistant), round-leaved mallow, volunteer flax; suppression of hempnettle, stork's-bill, wild buckwheat0.085–0.166 L/acre60 d
Barleychickweed (up to 8 cm)0.166 L/acre60 d
Barleycleavers (1-6 whorls)0.085 L/acre60 d
Barleycleavers (1-8 whorls)0.125 L/acre60 d
Barleykochia (2-8 leaf, including ALS resistant biotypes)0.125 L/acre60 d
Barleyround-leaved mallow (1-6 leaf)0.166 L/acre60 d
Barleyvolunteer flax (1-12 cm)0.125 L/acre60 d
OatsChickweed, cleavers, kochia (incl. ALS resistant), round-leaved mallow, volunteer flax; suppression of hempnettle, stork's-bill, wild buckwheat0.085–0.166 L/acre60 d
Oatschickweed (up to 8 cm)0.166 L/acre60 d
Oatscleavers (1-6 whorls)0.085 L/acre60 d
Oatscleavers (1-8 whorls)0.125 L/acre60 d
Oatskochia (2-8 leaf, including ALS resistant biotypes)0.125 L/acre60 d
Oatsround-leaved mallow (1-6 leaf)0.166 L/acre60 d
Oatsvolunteer flax (1-12 cm)0.125 L/acre60 d
WheatAnnual and perennial broadleaf weeds (tank mix with Curtail M - high rate)0.166 L/acre60 d
WheatAnnual and perennial broadleaf weeds (tank mix with Curtail M - low rate)0.125 L/acre60 d
WheatBroadleaf weeds (tank mix with 2,4-D ester - high rate)0.125 L/acre60 d
WheatBroadleaf weeds (tank mix with 2,4-D ester - low rate)0.093 L/acre60 d
WheatBroadleaf weeds (tank mix with Draft or Refine SG)0.085–0.166 L/acre60 d
WheatBroadleaf weeds (tank mix with Draft/Refine SG + 2,4-D ester)0.065 L/acre60 d
WheatBroadleaf weeds (tank mix with MCPA ester)0.125 L/acre60 d
WheatChickweed, cleavers, kochia (incl. ALS resistant), round-leaved mallow, volunteer flax; suppression of hempnettle, stork's-bill, wild buckwheat0.085–0.166 L/acre60 d
WheatChickweed, cleavers, kochia (incl. ALS resistant), round-leaved mallow, volunteer flax; suppression of hempnettle, stork's-bill, wild buckwheat0.085–0.166 L/acre60 d
WheatChickweed, cleavers, kochia (incl. ALS resistant), round-leaved mallow, volunteer flax; suppression of hempnettle, stork's-bill, wild buckwheat0.085–0.166 L/acre60 d
Wheatchickweed (up to 8 cm)0.166 L/acre60 d
Wheatchickweed (up to 8 cm)0.166 L/acre60 d
Wheatchickweed (up to 8 cm)0.166 L/acre60 d
Wheatcleavers (1-6 whorls)0.085 L/acre60 d
Wheatcleavers (1-6 whorls)0.085 L/acre60 d
Wheatcleavers (1-6 whorls)0.085 L/acre60 d
Wheatcleavers (1-8 whorls)0.125 L/acre60 d
Wheatcleavers (1-8 whorls)0.125 L/acre60 d
Wheatcleavers (1-8 whorls)0.125 L/acre60 d
Wheathempnettle (2-6 leaf) - suppression0.166 L/acre60 d
Wheatkochia (2-8 leaf, including ALS resistant biotypes)0.125 L/acre60 d
Wheatkochia (2-8 leaf, including ALS resistant biotypes)0.125 L/acre60 d
Wheatkochia (2-8 leaf, including ALS resistant biotypes)0.125 L/acre60 d
Wheatround-leaved mallow (1-6 leaf)0.166 L/acre60 d
Wheatround-leaved mallow (1-6 leaf)0.166 L/acre60 d
Wheatround-leaved mallow (1-6 leaf)0.166 L/acre60 d
Wheatstork's-bill (1-8 leaf) - suppression0.125 L/acre60 d
Wheatvolunteer flax (1-12 cm)0.125 L/acre60 d
Wheatvolunteer flax (1-12 cm)0.125 L/acre60 d
Wheatvolunteer flax (1-12 cm)0.125 L/acre60 d
Wheatwild buckwheat (1-8 leaf) - suppression0.085 L/acre60 d

About this content. This page presents the official PRD label as published by Health Canada's Pesticides Regulatory Directorate (formerly the Pest Management Regulatory Agency), the source of record. Always read the official label and consult your provincial pesticide- application authority before use. Report an error.

Quick facts

Active ingredients
fluroxypyr 333 g/L
Mode of action: Synthetic auxin (HRAC 4, Pyridine carboxylic)
CAS 69377-81-7
Formulation
emulsifiable concentrate
Resistance group
Group 4
First registered
2025-03-13
Registration expiry
2029-12-31