Herbicide label
Surprice
Surprice (EPA 83529-185) is a Group 2 bispyribac herbicide labeled for 1 crops. The label lists 19 controlled weeds, plus partial-control, suppression, and partner-control categories.
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“Surprice is a selective, post-emergence contact herbicide which provides control of many weeds infesting rice.”
Surprice label facts
- Product Surprice
- EPA Reg. No. 83529-185
- Registrant Sharda USA LLC
- Active ingredient bispyribac
- MOA group 2
Crops on the Surprice label
Surprice 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 Surprice label
The Surprice label names 30 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 control19- arrowhead, California
- baronet grass
- barnyardgrass, common
- dayflower
- ducksalad
- flatsedge, rice
- gooseweed
- johnsongrass
- jointvetch, indian
- jointvetch, northern
- junglerice
- monochoria
- sesbania, hemp
- smartweed, pennsylvania
- watergrass
- watergrass, resistant biotypes
- waterhyssop
- waterplantain
- wotorgroop
Suppression
suppression14- alligatorweed
- barnyardgrass, common
- barnyardgrass, perennial
- eclipta
- knotgrass
- morningglory, entireleaf
- morningglory, pitted
- pigweed
- ammannia, purple
- ricefield bulrush
- smartweed, pennsylvania
- smallflower umbrellaplant
- Texas/Mexicanweed
- junglerice
Want the control level for your crop, or to filter 1,700+ labels by any of these weeds? Use the free label filter.
Surprice 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.
Surprice FAQ
What weeds does Surprice control?
The Surprice label names 30 weeds, including california arrowhead, baronet grass, common barnyardgrass, dayflower, ducksalad, and rice flatsedge. Control varies by crop, rate, and timing.
What crops is Surprice labeled for?
Surprice is labeled for 1 crops and uses, including rice.
What is the active ingredient in Surprice? Is it a generic?
Surprice's active ingredient is bispyribac (MOA Group 2). Other products list the same active ingredient; rates, formulations, and labeled crops differ — verify each on its own label.
Can I tank-mix Surprice?
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.