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Registered Crop Input Products / STOREN Herbicide

STOREN Herbicide

PCP #35533 · Syngenta Canada Inc. · Herbicide

Group 15 and 27

Group 15 and 27 herbicide for control of many annual grass and broadleaf weeds (including triazine, group 2 and glyphosate-tolerant biotypes) in field corn and seed corn. Contains four active ingredients: bicyclopyrone, mesotrione, pyroxasulfone and S-metolachlor. Contains benoxacor that enhances S-metolachlor metabolism in corn. For sale and use in Eastern Canada only. Suspension formulation for surface pre-plant, pre-emergent and post-emergent applications.

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Registered uses (8)

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

CropTargetRatePHI
CornBroadleaf weeds: American nightshade, Eastern black nightshade, lamb's-quarters, redroot pigweed, velvetleaf, wild mustard, common ragweed, giant ragweed (suppression) (1–10 cm), Canada fleabane (1–10 cm), common waterhemp, hairy galinsoga (0–10 cm), palmer amaranth; Grass weeds (up to 2 leaf): Barnyard grass, crabgrass (smooth, hairy), fall panicum, foxtail (green, yellow, giant), witchgrass, annual bluegrass, yellow nutsedge (suppression) (1–15 cm); Grass weeds suppressed: proso millet1.59 L/acre45 d
CornBroadleaf weeds: American nightshade, Eastern black nightshade, lamb's-quarters, redroot pigweed, velvetleaf, wild mustard, common ragweed, giant ragweed (suppression) (1–10 cm), Canada fleabane (1–10 cm), common waterhemp, hairy galinsoga (0–10 cm), palmer amaranth; Grass weeds (up to 2 leaf): Barnyard grass, crabgrass (smooth, hairy), fall panicum, foxtail (green, yellow, giant), witchgrass, annual bluegrass, yellow nutsedge (suppression) (1–15 cm); Grass weeds suppressed: proso millet1.59 L/acre–
Field CornAmerican nightshade, Eastern black nightshade, lamb's-quarters, redroot pigweed, velvetleaf, wild mustard, common ragweed, giant ragweed (suppression) (1–10 cm), Canada fleabane (1–10 cm), common waterhemp, hairy galinsoga (0–10 cm), palmer amaranth, Barnyard grass, crabgrass (smooth, hairy), fall panicum, foxtail (green, yellow, giant), witchgrass, annual bluegrass, yellow nutsedge (suppression) (1–15 cm), proso millet (suppression)1.59 L/acre45 d
Field CornBroadleaf weeds: American nightshade, Eastern black nightshade, lamb's-quarters, redroot pigweed, velvetleaf, wild mustard, common ragweed, giant ragweed (suppression) (1–10 cm), Canada fleabane (1–10 cm), common waterhemp, hairy galinsoga (0–10 cm), palmer amaranth; Grass weeds (up to 2 leaf): Barnyard grass, crabgrass (smooth, hairy), fall panicum, foxtail (green, yellow, giant), witchgrass, annual bluegrass, yellow nutsedge (suppression) (1–15 cm); Grass weeds suppressed: proso millet1.59 L/acre–
Field CornShort season suppression of broadleaf weeds: lamb's-quarters, redroot pigweed, common ragweed, velvetleaf, Eastern black nightshade, American nightshade, wild mustard, common waterhemp, Canada fleabane (1–10 cm), hairy galinsoga (0–10 cm); Grass weeds (up to 2 leaf): Barnyard grass, crabgrass (smooth, hairy), fall panicum, foxtails (green, yellow, giant), proso millet, annual bluegrass, witchgrass1.36 L/acre–
Field Cornlamb's-quarters, redroot pigweed, common ragweed, velvetleaf, Eastern black nightshade, American nightshade, wild mustard, common waterhemp, Canada fleabane (1–10 cm), hairy galinsoga (0–10 cm), Barnyard grass, crabgrass (smooth, hairy), fall panicum, foxtails (green, yellow, giant), proso millet, annual bluegrass, witchgrass1.36 L/acre45 d
Seed CornAnnual weeds listed above1.36–1.59 L/acre–
Seed CornControl or suppression of annual weeds (broadleaf and grass weeds as listed for field corn)1.36–1.59 L/acre–

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
bicyclopyrone
HPPD inhibitor herbicide
CAS 352010-68-5
mesotrione
Group 27
Mode of action: HPPD inhibitor (HRAC 27, Triketone)
CAS 104206-82-8
s-metolachlor
Mode of action: VLCFA inhibitor (HRAC 15, Chloroacetamide)
CAS 87392-12-9
pyroxasulfone
Group 15
CAS 447399-55-5
Formulation
suspension concentrate
Resistance group
Group 15 and 27
First registered
2025-06-24
Registration expiry
2030-12-31