Herbicide label
Bolero UltraMax
Bolero UltraMax (EPA 59639-112) is a Group 15 thiobencarb herbicide labeled for 1 crops. The label lists 2 controlled weeds, plus partial-control, suppression, and partner-control categories.
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Bolero UltraMax label facts
- Product Bolero UltraMax
- EPA Reg. No. 59639-112
- Registrant Valent U. S. A. LLC
- Active ingredient thiobencarb
- MOA group 15
Crops on the Bolero UltraMax label
Bolero UltraMax is labeled for these 1 crops and uses, per the EPA label.
Need the rate or timing for one of these? Filter every label by your crop, free.
Weeds on the Bolero UltraMax label
The Bolero UltraMax label names 3 weeds and rates each by how the product handles it: full control, partial control, suppression, or control with a tank-mix partner. A weed can fall at more than one level, because control varies by crop, rate, and timing.
Controls
full control2- sprangletop
- umbrellaplant, smallflower
Suppression
suppression1- barnyardgrass, common
Want the control level for your crop, or to filter 1,700+ labels by any of these weeds? Use the free label filter.
Bolero UltraMax rates and plant-back
The label answers both with a table, not a single number. Here is what drives each answer.
Application rate
Your rate depends on your crop.
Get the rate for your field: build a program and FieldMarshal gives you the exact per-acre rate for your crop from the label line.
Bolero UltraMax FAQ
What weeds does Bolero UltraMax control?
The Bolero UltraMax label names 3 weeds, including sprangletop and smallflower umbrellaplant. Control varies by crop, rate, and timing.
What crops is Bolero UltraMax labeled for?
Bolero UltraMax is labeled for 1 crops and uses, including rice.
What is the active ingredient in Bolero UltraMax? Is it a generic?
Bolero UltraMax's active ingredient is thiobencarb (MOA Group 15). Other products list the same active ingredient; rates, formulations, and labeled crops differ — verify each on its own label.
Can I tank-mix Bolero UltraMax?
It depends on your target weeds, crop stage, and which partners the label approves. Build a program and FieldMarshal checks the label for approved partners and gives the condition on each, so you can verify it.
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Sources
Last updated 2026-07-14.