Fierce® is a pre-emergent soil active herbicide that offers extended activity on emerging spring broadleaf and grass weeds for up to 8 weeks after activation in pulses, soybeans and wheat.
Fierce® is a pre-emergent soil active herbicide that offers extended activity on emerging spring broadleaf and grass weeds for up to 8 weeks after activation in pulses, soybeans and wheat.
Technical information
Active ingredients: Group 14 (flumioxazin), Group 15 (pyroxasulfone)
Treatment area: One case treats 128 acres at 85 g/ac. (32 ac./jug)
Application timing: Fall apply as late as possible but prior to freeze up for any registered crop. Pre-plant or pre-emergent for soybeans, chickpeas and field peas. Should be applied a minimum of 7 days prior to seeding field corn, spring wheat and winter wheat. Can be applied up to 3 days after seeding soybeans, chickpeas and field peas
Tank-mix order: Fierce, BlackHawk or GoldWing (if used), glyphosate
Notes: Seeding after application requires the use of minimum to zero till drills. Fierce requires moisture to activate in the soil
Registered crops
- Chickpeas
- Field corn
- Field peas
- Lentils (fall application prior to large green and small red varieties)
- Soybeans
- Spring wheat (not including durum)
- Winter wheat
Weeds controlled
- Annual sow-thistle
- Barnyard grass
- Chickweed
- Cleavers
- Dandelion
- Downy brome (suppression)
- Green foxtail
- Green and Redroot pigweed (including Group 2- and 5- resistant biotypes)
- Japanese brome (suppression)
- Kochia (including Group 2-, 4- and glyphosate-resistant biotypes)
- Lamb’s-quarters (including Group 2- and triazine-resistant biotypes)
- Russian thistle (suppression)
- Wild buckwheat
- Wild mustard (including Group 2- resistant biotypes)
- Wild oats (suppression)
- Volunteer canola (suppression)
Benefits
- BETTER PERFORMANCE than other leading soil active herbicides on tough broadleaf weeds
- ACTIVITY ON GRASS WEEDS with a different mode of action to manage Group 1- and 2-resistant biotypes
- EXTENDED CONTROL with activity that lasts up to 8 weeks after activation
- TWO ACTIVE INGREDIENTS (proven Group 14 and 15) for management of Group 1-, 2-, 4-, 5- and glyphosate-resistant weeds
- Convenient application eliminates the need for granular broadcast herbicide products
- Tank-mixable with most burndown and pre-emergent herbicides (i.e. glyphosate, BlackHawk and/or GoldWing)
Performance tips
- Emerged weeds – use with a burndown herbicide partner like glyphosate and BlackHawk or GoldWing
- Flushing weeds – residual activity for newly emerging weeds
- Emerged crop – Fierce alone can be applied up to 3 days post seeding soybeans, chickpeas and field peas
- Refer to label for rates and use patterns
- DO NOT incorporate after application or prior to seeding
- Pre-seeding applications require the use of minimum disturbance seeding systems
- Non-ionic surfactant required if glyphosate is not being tank-mixed
- Leave a small checkstrip in the field to show performance