PCP #32910 · Isk Biosciences Corporation · Herbicide
Group 2 wettable granule herbicide containing 25% flazasulfuron for preemergence and postemergence control of certain broadleaf weeds, grasses and yellow nutsedge in grapes, lowbush blueberries, conifer trees (ornamentals, Christmas trees, conifer release and forestry) and industrial vegetation management sites and specified nonagricultural areas.
Crop × pest × application rate combinations from the official label. Rates converted to per-acre. PHI is the pre-harvest interval; REI is the restricted-entry interval. Always confirm against the official label PDF before applying.
| Crop | Target | Rate | PHI | REI |
|---|---|---|---|---|
| Blueberry | Preemergence and postemergence control of certain grasses, broadleaf weeds and yellow nutsedge; suppression of specified grasses and broadleaves listed on the label | 60.7–80.9 g/acre | – | 12 d |
| Conifer | Control and suppression of grasses, broadleaf weeds and sedges listed in the Weeds Controlled Pre-emergence and Weeds Suppressed Pre-emergence tables | 60.7–80.9 g/acre | – | 12 d |
| Conifer | Postemergence control of grasses (annual bluegrass, creeping bentgrass, downy brome, large and smooth crabgrass, rough/sheep/tall fescue, giant/green/yellow foxtail, Italian ryegrass, long-spined sandbur), broadleaves (catchweed bedstraw, California burclover, wild carrot, mayweed chamomile, common and mouse-ear chickweed, crimson/hop/large hop clover, redstem filaree, hairy fleabane, Carolina geranium, groundsel, henbit, Canada horseweed/mare's tail, common lambsquarters, common and little mallow, mustard including Indian and tumble, field pansy, field pepperweed, prostrate/redroot/tumble pigweed, common purslane, common ragweed, shepherd's-purse, annual sowthistle, corn speedwell, creeping/prostrate/spotted spurge, bull and Canada thistle, panicle willoweed, chickweed wintergreen) and yellow nutsedge; suppression of rabbitfoot polypogon, witchgrass, hare barley, dandelion, rough fleabane and bristly oxtongue | 60.7–80.9 g/acre | – | 12 d |
| Conifer | Preemergence control of grasses (annual bluegrass, hare barley, creeping bentgrass, downy brome, rough/sheep/tall fescue, giant/green/yellow foxtail, Italian ryegrass, long-spined sandbur), broadleaves (California burnclover, common and mouse-ear chickweed, crimson clover, dandelion, cat's-ear dandelion, redstem filaree, hairy fleabane, Carolina geranium, groundsel, henbit, common lambsquarters, common and little mallow, mustard including Indian and wild, prostrate/redroot/tumble pigweed, common purslane, common ragweed, shepherd's-purse, annual sowthistle, corn speedwell, creeping/prostrate/spotted spurge, panicle willoweed) and yellow nutsedge; suppression of large crabgrass, hair fescue, narrowleaf goldenrod, red sorrel, witchgrass, Canada horseweed/mare's tail, bristly oxtongue and sowthistle |
| 60.7–80.9 g/acre |
| – |
| 12 d |
| Forest | Control and suppression of grasses, broadleaf weeds and sedges listed in the Weeds Controlled Pre-emergence and Weeds Suppressed Pre-emergence tables | 60.7–80.9 g/acre | – | 12 d |
| Grape | Postemergence control of grasses (annual bluegrass, creeping bentgrass, downy brome, large and smooth crabgrass, rough/sheep/tall fescue, giant/green/yellow foxtail, Italian ryegrass, long-spined sandbur), broadleaves (catchweed bedstraw, California burclover, wild carrot, mayweed chamomile, common and mouse-ear chickweed, crimson/hop/large hop clover, redstem filaree, hairy fleabane, Carolina geranium, groundsel, henbit, Canada horseweed/mare's tail, common lambsquarters, common and little mallow, mustard including Indian and tumble, field pansy, field pepperweed, prostrate/redroot/tumble pigweed, common purslane, common ragweed, shepherd's-purse, annual sowthistle, corn speedwell, creeping/prostrate/spotted spurge, bull and Canada thistle, panicle willoweed, chickweed wintergreen) and yellow nutsedge; suppression of rabbitfoot polypogon, witchgrass, hare barley, dandelion, rough fleabane and bristly oxtongue | 60.7–80.9 g/acre | 75 d | 12 d |
| Grape | Preemergence control of grasses (annual bluegrass, hare barley, creeping bentgrass, downy brome, rough/sheep/tall fescue, giant/green/yellow foxtail, Italian ryegrass, long-spined sandbur), broadleaves (California burnclover, common and mouse-ear chickweed, crimson clover, dandelion, cat's-ear dandelion, redstem filaree, hairy fleabane, Carolina geranium, groundsel, henbit, common lambsquarters, common and little mallow, mustard including Indian and wild, prostrate/redroot/tumble pigweed, common purslane, common ragweed, shepherd's-purse, annual sowthistle, corn speedwell, creeping/prostrate/spotted spurge, panicle willoweed) and yellow nutsedge; suppression of large crabgrass, hair fescue, narrowleaf goldenrod, red sorrel, witchgrass, Canada horseweed/mare's tail, bristly oxtongue and sowthistle | 60.7–80.9 g/acre | 75 d | 12 d |
| Nonagricultural Areas | Preemergence and postemergence control of certain grasses, broadleaf weeds and yellow nutsedge; suppression of specified grasses and broadleaves listed on the label | 80.9 g/acre | – | – |
Adjuvant requirements, compatibility notes, and mixing restrictions from the official label. Always confirm against the official label PDF before mixing.
| Guidance | Adjuvant | Rate |
|---|---|---|
| Required | HiActivate® NIS For postemergence application use a minimum of 20 litres per 100 m² and add a non-ionic surfactant at 5 ml per litre of spray. | 5 ml per litre of spray |
| Required | adjuvant (unspecified) For postemergence application, use an adjuvant (refer to Additive Use Requirements section). | – |
| Recommended | HiActivate® NIS The use of a non-ionic surfactant at 0.25 percent by volume (0.25 litre/100 litres spray volume) provides a maximum performance for all postemergence applications. Surfactant products must contain at least 50% nonionic surfactant. | 0.25% v/v (0.25 litre/100 litres spray volume) |
| Recommended | COC (petroleum crop oil concentrate) or MSO (methylated seed oil) Petroleum crop oil concentrate or methylated seed oil at 1% by volume (1 litre/100 litres) can also enhance herbicide performance. Oil adjuvants must contain at least 15% surfactant emulsifiers and 80% high quality petroleum or methylated seed oil. | 1% v/v (1 litre/100 litres) |
| Recommended | adjuvant (unspecified) Adjuvant use recommended. For postemergence application, use an adjuvant (refer to Additive Use Requirements section). | – |
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.
