Herbicide label
Willowood Thio UltraMax Herbicide Label
Willowood Thio UltraMax (EPA 87290-73) is a Group 15 thiobencarb herbicide labeled for 1 crops. The label lists 2 controlled weeds, plus partial-control, suppression, and partner-control categories.
Willowood Thio UltraMax label facts
- Product Willowood Thio UltraMax
- EPA Reg. No. 87290-73
- Active ingredient thiobencarb
- MOA group 15
Crops on the Willowood Thio UltraMax label
Willowood Thio UltraMax is labeled for these 1 crops and uses, per the EPA label.
Weeds on the Willowood Thio UltraMax label
The Willowood Thio 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
- umbrella plant, smallflower
Suppression
suppression1- barnyardgrass, common
Willowood Thio 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.
Willowood Thio UltraMax FAQ
What weeds does Willowood Thio UltraMax control?
The Willowood Thio UltraMax label names 3 weeds, including sprangletop and smallflower umbrella plant. Control varies by crop, rate, and timing.
What crops is Willowood Thio UltraMax labeled for?
Willowood Thio UltraMax is labeled for 1 crops and uses, including rice.
What is the active ingredient in Willowood Thio UltraMax? Is it a generic?
Willowood Thio 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.
Sources
Last updated 2026-09-17.