Herbicide label

Benfica Herbicide Label

Benfica (EPA 83529-176) is a Group 2 bensulfuron-methyl herbicide labeled for 1 crops. The label lists 19 controlled weeds, plus partial-control, suppression, and partner-control categories.

Benfica label facts

Crops on the Benfica label

Benfica is labeled for these 1 crops and uses, per the EPA label.

Weeds on the Benfica label

The Benfica 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, annual
  • spikerush, blunt
  • dayflower
  • ducksalad
  • eclipta
  • water hyssop, eisen
  • false pimpernel
  • gooseweed
  • mexicanweed
  • pickerelweed
  • ammannia, purple
  • flatsedge, rice
  • bulrush, roughseed
  • umbrellaplant, smallflower
  • texasweed
  • water plantain
  • waterwort
  • nutsedge, yellow
  • water hyssop, roundleaf

Suppression

suppression3
  • alligatorweed
  • sesbania, hemp
  • jointvetch, northern

Controls with a tank-mix partner

needs partner8
  • cocklebur, common
  • morningglory, entireleaf
  • morningglory, ivyleaf
  • morningglory, palmleaf
  • morningglory, pitted
  • smartweed, pennsylvania
  • barnyardgrass, common
  • watergrass

Benfica 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.

Plant-back and rotation

Your interval depends on your application rate and the rotational crop.

Get the interval for your rotation: build a program and FieldMarshal gives you the exact plant-back for your rotational crop from the label line.

Benfica FAQ

What weeds does Benfica control?

The Benfica label names 30 weeds, including annual arrowhead, blunt spikerush, dayflower, ducksalad, eclipta, and eisen water hyssop. Control varies by crop, rate, and timing.

What crops is Benfica labeled for?

Benfica is labeled for 1 crops and uses, including rice.

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

Benfica's active ingredient is bensulfuron-methyl (MOA Group 2). Other products list the same active ingredient; rates, formulations, and labeled crops differ — verify each on its own label.

Sources

Last updated 2026-09-30.