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Registered Crop Input Products / Priority HL

Priority HL

PCP #35140 · Adama Agricultural Solutions Canada Ltd. · Herbicide

Group 2

Group 2 herbicide containing florasulam at 200 g/L for control of broadleaf weeds in spring wheat (including durum), spring barley, and oats (tank mixes only). Applied at 20-25 mL/ha at 2-6 leaf stage of crop. Multiple tank mix options available for expanded weed spectrum including grassy weeds.

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Registered uses (53)

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

CropTargetRatePHI
Barleybluebur, buckwheat wild, canola volunteer, chickweed common, cleavers, cocklebur, cow cockle, kochia, lady's-thumb, mustard wild, nightshade American, pigweed red-root, ragweed common, shepherd's purse, smartweed green, smartweed pale, stinkweed, thistle Russian, velvetleaf, buckwheat common, buckwheat Tartary, groundsel common, lamb's-quarters8.09–10.1 mL/acre60 d
Barleybluebur, buckwheat wild, canola volunteer, chickweed common, cleavers, cocklebur, cow cockle, kochia, lady's-thumb, mustard wild, nightshade American, pigweed red-root, ragweed common, shepherd's purse, smartweed green, smartweed pale, stinkweed, thistle Russian, velvetleaf, buckwheat common, buckwheat Tartary, groundsel common, lamb's-quarters; suppressed: hempnettle, sowthistle annual, sowthistle perennial8.09–10.1 mL/acre60 d
Barleybuckwheat wild, burdock, canola volunteer, chickweed common, cleavers, flixweed (spring rosettes only), hempnettle, lamb's-quarters, mustard ball, mustard wild, pigweed redroot, pigweed Russian, prickly lettuce, ragweed common, shepherd's purse, smartweed, stinkweed, sunflower annual; suppressed: dandelion, plantain, sowthistle annual, sowthistle perennial, stork's bill, thistle Canada10.1 mL/acre60 d
Barleybuckwheat wild, burdock, canola volunteer, chickweed common, cleavers, flixweed, hempnettle, lamb's-quarters, mustard ball, mustard wild, pigweed redroot, pigweed Russian, prickly lettuce, ragweed common, shepherd's purse, smartweed, stinkweed, sunflower annual10.1 mL/acre60 d
Barleybuckwheat wild, canola volunteer, chickweed common, cleavers, dandelions (seedlings and overwintered rosettes < 15 cm), flixweed (spring rosettes only), sowthistle annual, stinkweed, stork's-bill, thistle Canada, shepherd's purse, smartweed, hempnettle, lamb's-quarters, mustard wild, pigweed redroot, sowthistle perennial (top growth only); suppressed: dandelion (overwintered rosettes > 15 cm, mature plants), plantain (top growth)10.1 mL/acre60 d
Barleybuckwheat wild, canola volunteer, chickweed common, cleavers, dandelions, flixweed, sowthistle annual, stinkweed, stork's-bill, thistle Canada, shepherd's purse, smartweed, hempnettle, lamb's-quarters, mustard wild, pigweed redroot, sowthistle perennial10.1 mL/acre60 d
Barleybuckwheat wild, canola volunteer, chickweed common, cleavers, shepherd's-purse, smartweed, stinkweed, mustard wild10.1 mL/acre60 d
Barleyvolunteer glyphosate-tolerant canola, wild buckwheat (up to 5 leaf), dandelion (top growth control, up to 6 leaf stage), plus labelled weeds controlled by Priority HL or glyphosate10.1 mL/acre–
Barleyvolunteer glyphosate-tolerant canola, wild buckwheat, dandelion (tank-mix with glyphosate)10.1 mL/acre–
Barleywild oat (tank-mix with Curtail M + Assert 300 SC)10.1 mL/acre60 d
Barleywild oat (tank-mix with MCPA Ester + Assert 300 SC)10.1 mL/acre60 d
Barleywild oat, plus Priority HL + Curtail® M spectrum10.1 mL/acre60 d
Barleywild oat, plus Priority HL + MCPA Ester spectrum10.1 mL/acre60 d
Barleywild oats, green foxtail, yellow foxtail, volunteer oats, volunteer canary seed, proso millet (tank-mix with Axial 100 EC)10.1 mL/acre60 d
Cerealsbuckwheat wild, canola volunteer, chickweed common, cleavers, shepherd's-purse, smartweed, stinkweed, mustard wild; suppressed: hempnettle, pigweed redroot, sowthistle annual, sowthistle perennial10.1 mL/acre60 d
Oatsbuckwheat wild, burdock, canola volunteer, chickweed common, cleavers, flixweed (spring rosettes only), hempnettle, lamb's-quarters, mustard ball, mustard wild, pigweed redroot, pigweed Russian, prickly lettuce, ragweed common, shepherd's purse, smartweed, stinkweed, sunflower annual; suppressed: dandelion, plantain, sowthistle annual, sowthistle perennial, stork's bill, thistle Canada10.1 mL/acre60 d
Oatsbuckwheat wild, burdock, canola volunteer, chickweed common, cleavers, flixweed, hempnettle, lamb's-quarters, mustard ball, mustard wild, pigweed redroot, pigweed Russian, prickly lettuce, ragweed common, shepherd's purse, smartweed, stinkweed, sunflower annual10.1 mL/acre60 d
Oatsbuckwheat wild, canola volunteer, chickweed common, cleavers, dandelions (seedlings and overwintered rosettes < 15 cm), flixweed (spring rosettes only), sowthistle annual, stinkweed, stork's-bill, thistle Canada, shepherd's purse, smartweed, hempnettle, lamb's-quarters, mustard wild, pigweed redroot, sowthistle perennial (top growth only); suppressed: dandelion (overwintered rosettes > 15 cm, mature plants), plantain (top growth)10.1 mL/acre60 d
Oatsbuckwheat wild, canola volunteer, chickweed common, cleavers, dandelions, flixweed, sowthistle annual, stinkweed, stork's-bill, thistle Canada, shepherd's purse, smartweed, hempnettle, lamb's-quarters, mustard wild, pigweed redroot, sowthistle perennial10.1 mL/acre60 d
Oatsvolunteer glyphosate-tolerant canola, wild buckwheat (up to 5 leaf), dandelion (top growth control, up to 6 leaf stage), plus labelled weeds controlled by Priority HL or glyphosate10.1 mL/acre–
Oatsvolunteer glyphosate-tolerant canola, wild buckwheat, dandelion (tank-mix with glyphosate)10.1 mL/acre–
WheatWild oat and green foxtail (tank-mix with 2,4-D Ester + Everest Solupak 70 DF)10.1 mL/acre60 d
WheatWild oat and green foxtail (tank-mix with Curtail M + Everest Solupak 70 DF)10.1 mL/acre60 d
WheatWild oat and green foxtail (tank-mix with MCPA Ester + Everest Solupak 70 DF)10.1 mL/acre60 d
Wheatbluebur, buckwheat wild, canola volunteer, chickweed common, cleavers, cocklebur, cow cockle, kochia, lady's-thumb, mustard wild, nightshade American, pigweed red-root, ragweed common, shepherd's purse, smartweed green, smartweed pale, stinkweed, thistle Russian, velvetleaf, buckwheat common, buckwheat Tartary, groundsel common, lamb's-quarters8.09–10.1 mL/acre60 d
Wheatbluebur, buckwheat wild, canola volunteer, chickweed common, cleavers, cocklebur, cow cockle, kochia, lady's-thumb, mustard wild, nightshade American, pigweed red-root, ragweed common, shepherd's purse, smartweed green, smartweed pale, stinkweed, thistle Russian, velvetleaf, buckwheat common, buckwheat Tartary, groundsel common, lamb's-quarters; suppressed: hempnettle, sowthistle annual, sowthistle perennial8.09–10.1 mL/acre60 d
Wheatbluebur, burdock, buckwheat tartary, buckwheat wild, canola volunteer, chickweed common, cleavers, cocklebur, dandelion (seedlings and overwintered rosettes), flixweed, kochia, lady's-thumb, lamb's quarters, mustard ball, mustard wild, pigweed redroot, plantain, prickly lettuce, ragweed common, shepherd's purse, smartweed, sowthistle annual, stinkweed, sunflower annual, thistle Russian, vetch, wild radish; suppressed: hempnettle, sowthistle perennial (top growth control), thistle Canada (top growth control)10.1 mL/acre60 d
Wheatbluebur, burdock, buckwheat tartary, buckwheat wild, canola volunteer, chickweed common, cleavers, cocklebur, dandelion, flixweed, kochia, lady's-thumb, lamb's quarters, mustard ball, mustard wild, pigweed redroot, plantain, prickly lettuce, ragweed common, shepherd's purse, smartweed, sowthistle annual, stinkweed, sunflower annual, thistle Russian, vetch, wild radish10.1 mL/acre60 d
Wheatbuckwheat wild, burdock, canola volunteer, chickweed common, cleavers, flixweed (spring rosettes only), hempnettle, lamb's-quarters, mustard ball, mustard wild, pigweed redroot, pigweed Russian, prickly lettuce, ragweed common, shepherd's purse, smartweed, stinkweed, sunflower annual; suppressed: dandelion, plantain, sowthistle annual, sowthistle perennial, stork's bill, thistle Canada10.1 mL/acre60 d
Wheatbuckwheat wild, burdock, canola volunteer, chickweed common, cleavers, flixweed, hempnettle, lamb's-quarters, mustard ball, mustard wild, pigweed redroot, pigweed Russian, prickly lettuce, ragweed common, shepherd's purse, smartweed, stinkweed, sunflower annual10.1 mL/acre60 d
Wheatbuckwheat wild, canola volunteer, chickweed common, cleavers, dandelions (seedlings and overwintered rosettes < 15 cm), flixweed (spring rosettes only), sowthistle annual, stinkweed, stork's-bill, thistle Canada, shepherd's purse, smartweed, hempnettle, lamb's-quarters, mustard wild, pigweed redroot, sowthistle perennial (top growth only); suppressed: dandelion (overwintered rosettes > 15 cm, mature plants), plantain (top growth)10.1 mL/acre60 d
Wheatbuckwheat wild, canola volunteer, chickweed common, cleavers, dandelions, flixweed, sowthistle annual, stinkweed, stork's-bill, thistle Canada, shepherd's purse, smartweed, hempnettle, lamb's-quarters, mustard wild, pigweed redroot, sowthistle perennial10.1 mL/acre60 d
Wheatbuckwheat wild, canola volunteer, chickweed common, cleavers, shepherd's-purse, smartweed, stinkweed, mustard wild10.1 mL/acre60 d
Wheatbuckwheat wild, canola volunteer, chickweed common, cleavers, shepherd's-purse, smartweed, stinkweed, mustard wild; suppressed: hempnettle, pigweed redroot, sowthistle annual, sowthistle perennial10.1 mL/acre60 d
Wheatvolunteer glyphosate-tolerant canola, wild buckwheat (up to 5 leaf), dandelion (top growth control, up to 6 leaf stage), plus labelled weeds controlled by Priority HL or glyphosate10.1 mL/acre–
Wheatvolunteer glyphosate-tolerant canola, wild buckwheat, dandelion (tank-mix with glyphosate)10.1 mL/acre–
Wheatwild oat (tank-mix with 2,4-D Ester + Assert 300 SC)10.1 mL/acre60 d
Wheatwild oat (tank-mix with Curtail M + Assert 300 SC)10.1 mL/acre60 d
Wheatwild oat (tank-mix with MCPA Ester + Assert 300 SC)10.1 mL/acre60 d
Wheatwild oat and green foxtail (tank-mix with Bromoxynil + LADDER)8.09–10.1 mL/acre60 d
Wheatwild oat, green foxtail, plus Priority HL + 2,4-D Ester spectrum10.1 mL/acre60 d
Wheatwild oat, green foxtail, plus Priority HL + Bromoxynil spectrum8.09–10.1 mL/acre60 d
Wheatwild oat, green foxtail, plus Priority HL + Curtail® M spectrum10.1 mL/acre60 d
Wheatwild oat, green foxtail, plus Priority HL + MCPA Ester spectrum10.1 mL/acre60 d
Wheatwild oat, plus Priority HL + 2,4-D Ester spectrum10.1 mL/acre60 d
Wheatwild oat, plus Priority HL + Curtail® M spectrum10.1 mL/acre60 d
Wheatwild oat, plus Priority HL + MCPA Ester spectrum10.1 mL/acre60 d
Wheatwild oats, green foxtail, yellow foxtail, volunteer (tame) oats, volunteer canary seed, barnyard grass (tank-mix with LADDER)10.1 mL/acre60 d
Wheatwild oats, green foxtail, yellow foxtail, volunteer (tame) oats, volunteer canary seed, barnyard grass (tank-mix with MCPA Ester + LADDER)10.1 mL/acre60 d
Wheatwild oats, green foxtail, yellow foxtail, volunteer (tame) oats, volunteer canary seed, barnyard grass, plus Priority HL + MCPA Ester spectrum10.1 mL/acre60 d
Wheatwild oats, green foxtail, yellow foxtail, volunteer (tame) oats, volunteer canary seed, barnyard grass, plus Priority HL spectrum10.1 mL/acre60 d
Wheatwild oats, green foxtail, yellow foxtail, volunteer oats, volunteer canary seed, proso millet (tank-mix with Axial 100 EC)10.1 mL/acre60 d
Wheatwild oats, green foxtail, yellow foxtail, volunteer oats, volunteer canary seed, proso millet, plus Priority HL spectrum10.1 mL/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
florasulam 200 g/L
Group 2
Mode of action: ALS / AHAS inhibitor (HRAC 2, Triazolopyrimidine)
CAS 145701-23-1
Formulation
suspension concentrate
Resistance group
Group 2
First registered
2024-04-02
Registration expiry
2029-12-31