Weed Control / Selective & Post-Emergent


Selective, Post-Emergent Iron-Based Weed Killer 

Fiesta Selective Organic Weed Killer

Fiesta® Selective Weed Killer is a selective, post-emergent, broadleaf weed killers that leave lawns healthy and weed-free using a specially formulated iron chelate solution. Fiesta works quickly, delivering visible same-day results, even in cool weather.

Since Fiesta Selective Weed Killer is made from iron there is no unpleasant odor during or after application; pets and people can reenter the treated area as soon as the spray is dry. Suitable for broadcast application or spot treatment, Fiesta is a versatile, patented product that will help grass look its best, even in pesticide restricted areas such as parks, golf courses, cemeteries, sports fields, and playgrounds. Fiesta is a great choice for environmentally conscience weed control!

Fiesta Selective Weed Killer Benefits

  • Liquid selective herbicide that effectively kills broadleaf weeds in the lawn.
  • Works fast and weed control can be seen in the same day.
  • Three benefits from one application – green-up, post emergent broadleaf weed control, and early post emergent crabgrass control (up to the four-leaf stage) per three years of data from Rutgers University.
  • Made with iron, Does Not contain the synthetic weed chemicals 2,4-D or Dicamba!
  • People and pets can enter treated area when spray dries.
  • No unpleasant odor.
  • Rain-fast in 3 hours.
  • Effective even in cool weather.
  • The exact same product ingredients as Iron X!™ Selective Weed Killer at about 1/8 the price!

Fiesta Selective Weed Killer

Fiesta Can Be Used On:

Dandelions, Plantains, Clover, Foxtail, Quack Grasses, Barnyard Grasses, Curly Dock, Annual Bluegrasses, Orchard Grasses, Catch Weed and Many More Weeds...

Fiesta Science

University of Maryland: "Iron Based Herbicides: Alternative Materials for Weed Control in Lawn and Landscape".

Cornell University Weekly TurfGrass Publication "Short Cutt".  Dr. Frank Rossi, Cornell University. April 15, 2019 (See Last Paragraph).

Fiesta General Application Instructions

Large Areas (Broadcast Sprays):

  1. Add 5 oz. of Fiesta per gallon of water.
  2. Apply 2.5 gallons of water per 1,000 sq. ft. (or 12.5 oz. product per 2.5 gallons of water per 1,000 square feet).
  3. Repeat in 3-4 weeks for optimal knockdown of weeds.

Spot Spraying:

  1. Use 5 oz. of Fiesta per gallon of water and spray enough to wet weeds as needed.

Fiesta Application Notes

  • Thoroughly spray weeds to point of runoff.
  • Ensure turf is well watered prior to application.
  • Do not apply when the daytime temperature will exceed 85°F or is below 50°F.
  • Do not apply to bentgrass.
  • Iron can stain some stone, concrete, clothes, equipment and other such things. Any desirable plants or structures accidentally contacted should be rinsed with water.
  • Do not apply to stressed lawns, such as drought stress.
  • Any standard spray equipment such as a hand-held or backpack sprayer may be used.
  • Use a coarse nozzle setting to reduce drift.
  • Repeat treatment in 3 to 4 weeks for best results.
  • Allow 3 hours before rain or watering so the product can dry.
  • Occasionally a darkening of the grass leaf
    blades can occur after treatment; however the grass will recover within a few days to weeks.
  • Do not apply during windy conditions to avoid over-spray.
  • Results will be visible within an hour or so.

Fiesta Active Ingredient

  • Iron HEDTA (FeHEDTA)...................................................26.5%

Fiesta Available Sizes

  • 1 Gallon (Covers 10,000 square feet).
  • 2.5 Gallon (Covers 25,000 square feet).
  • 200 Gallon Tote (Covers 46 Acres).

Note: For more convenient smaller size Concentrate and Ready-To-Use Sizes, see Bonide Captain Jack's Lawnweed Brew by CLICKING HERE.

Fiesta Information

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