Herbicide label

Biscayne

Biscayne (EPA 91234-102) is a Group 6 bentazon herbicide labeled for 13 crops. The label lists 46 controlled weeds, plus partial-control, suppression, and partner-control categories.

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Official EPA label (PDF)

“Bentazon, the active ingredient in **Biscayne**, is a Group 6 (WSSA) herbicide belonging to the benzothiadiazinone chemistry class. **Biscayne** inhibits photosynthesis at photosystem II site B resulting in symptoms of chlorosis that progresses to necrosis and control of emerged weeds. . **Biscayne** may be applied as a spot spray application, a banded application, or as a broadcast application to actively growing weeds.”

— Biscayne EPA label, Reg. No. 91234-102

Biscayne label facts

Crops on the Biscayne label

Biscayne is labeled for these 13 crops and uses, per the EPA label.

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Weeds on the Biscayne label

The Biscayne label names 51 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 control46
  • anoda, spurred
  • arrowhead
  • balloonvine
  • beggarticks
  • buckwheat, wild
  • cocklebur, common
  • croton, tropic
  • dayflower
  • devilsclaw
  • dogfennel
  • ducksalad
  • eclipta
  • galinsoga
  • gooseweed
  • groundsel, common
  • jimsonweed
  • kochia
  • ladysthumb
  • lambsquarters, common
  • mallow, venice
  • marshelder
  • mayweed
  • morningglory
  • mustard, wild
  • nightshade, hairy
  • nutsedge, yellow
  • poinsettia, wild
  • purslane, common
  • radish, volunteer
  • ragweed, common
  • ragweed, giant
  • ammannia, purple
  • redweed
  • senna, coffee
  • sesbania
  • shepherd's-purse
  • sida, prickly
  • smartweed
  • smartweed, pennsylvania
  • spikerush
  • starbur, bristly
  • sugar beet, volunteer
  • sunflower, wild
  • thistle, canada
  • velvetleaf
  • water plantain, common

Partial control

partial2
  • morningglory, cypressvine
  • morningglory, smallflower

Suppression

suppression2
  • bindweed, field
  • bindweed, hedge

Controls with a tank-mix partner

needs partner1
  • pigweed

Weed indexes featuring this label

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Biscayne 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.

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Biscayne FAQ

What weeds does Biscayne control?

The Biscayne label names 51 weeds, including spurred anoda, arrowhead, balloonvine, beggarticks, wild buckwheat, and common cocklebur. Control varies by crop, rate, and timing.

What crops is Biscayne labeled for?

Biscayne is labeled for 13 crops and uses, including field corn, soybeans, peanut, sorghum, and rice.

What is the active ingredient in Biscayne? Is it a generic?

Biscayne's active ingredient is bentazon (MOA Group 6). Other products list the same active ingredient; rates, formulations, and labeled crops differ — verify each on its own label.

Can I tank-mix Biscayne?

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.