Natria Turf Weed Killer

(1 customer review)



Natria, also known commercially as FIESTA, is a new Iron-based selective bio-herbicide with low toxicity that controls weeds, moss & algae on commercial and residential lawns, golf courses, parks, rights of way, schools, and playgrounds. This weed spray is not a liquid organic fertilizer.

This effective weed killer’s mode of action is to cause iron toxicity (oxidative damage) at the cellular level. Natria is quickly absorbed by the leaf tissue and transported down to the root. Toxicity of the contacted leaf tissue cells also occurs turning the leaves black or brown.

Broadleaf weeds (dicots) absorb more iron than grasses (monocots) which provides the mechanism of selectivity. For this reason, adequate coverage is important.

  • Kill weeds, not lawns
  • Works FAST! – even in cool weather
  • People and pets can re-enter the area after the spray dries
  • A great alternative to synthetic chemicals
  • Net Wt. 24oz concentrate
  • Liquid

Natria controls and suppresses weeds such as:

Algae, Black Medic, Broadleaf Plantain, Bull Thistle, Canada Thistle, Chickweed, Creeping Buttercup, Creeping Charlie/Ground Ivy, Dandelion, Dovefoot Geranium, English Daisy, False Dandelion, Lichens, Liverworts, Moss, Narrow Leaved Plantain, Oxalis, Persian Speedwell, Prostrate Knotweed, Shepherd’s Purse, Silverweed Cinquefoil, Slender Speedwell, White Clover, Wild Chamomile


Mix 1 part Natria Weed Killer with 24 parts water (5 oz. To 1 gallon)

Broadcast Treatment: Apply the mixed solution at a rate of 2.5-10 gallons/1000 ft2. Uniform coverage is important.


Fiesta® is approved by the EPA Biopesticide Division to control weeds, algae, and moss in residential and commercial lawns, rights of way, golf courses, parks, schools, and playgrounds.

1 review for Natria Turf Weed Killer

  1. B. Sinclair

    I’ve been using Fiesta on lawn weeds in North Western Wyoming for three years now. It’s exceptionally effective against dandelions red clover white clover Canada thistle and black medic. Not as effective but still controls the spread of flixweed. This is a very good product but it is expensive typically I only need to use 3 oz per gallon rather than 5 as prescribed. I would highly recommend this product for any Lawns where there are pets or amphibians or reptiles that you’re concerned about. It really works well on those weeds I’ve mentioned

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