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Bonide Captain Jack's Lawnweed Brew Concentrate — herbicida selectivo a base de hierro, fotografía de producto del fabricante
Bonide Captain Jack's Lawnweed Brew Concentrate — iron-based selective herbicide

Iron-Based Selective Herbicide

Bonide Captain Jack's Lawnweed Brew Concentrate — Reseña

★★★★☆ 3.5/5

nuestra calificación editorial cómo puntuamos

4/5 según 261 compradores en Amazon — su cifra, no la nuestra.

$28–$35

Precio habitual · Roughly 640–1,280 sq ft per 32 oz bottle (6.4 gal of spray at 5–10 gal per 1,000 sq ft)

Enlaces de afiliado — consulte nuestra divulgación. Las comisiones nunca influyen en los veredictos.

Una herramienta genuina de tratamiento puntual para quien no quiere esparcir 2,4-D — y el único producto de esta lista que además se ocupa de musgo, algas y líquenes.

Nuestro Veredicto

Legítimo por lo que realmente es, y comprado con frecuencia por el motivo equivocado. El FeHEDTA quema rápidamente las malezas de hoja ancha y el musgo, funciona con frío hasta los 50 °F y le evita pulverizar un herbicida hormonal sintético sobre todo el césped. Dos cosas que conviene saber antes de comprarlo. UC IPM documenta que el hierro-HEDTA produce quemado y NO mata las raíces, de modo que las malezas perennes rebrotan y la propia etiqueta programa una repetición a las 3 o 4 semanas. Y con unos 640 a 1,280 pies cuadrados por frasco, cuesta alrededor de cinco veces más por cada mil pies cuadrados que un granulado abono-herbicida — lo cual está bien para tratar puntos concretos y sale caro si pensaba cubrir un césped entero.

✅ A favor

  • Selectivo — mata malezas de hoja ancha y musgo sin matar el césped
  • Quemado visible en horas; resistente a la lluvia en unas 3 horas
  • Funciona con frío, hasta los 50 °F, cuando los productos con 2,4-D van lentos
  • También etiquetado para musgo, algas y líquenes, cosa que los sintéticos no cubren — salvo en California, donde la etiqueta excluye ese uso
  • Sin herbicida hormonal sintético, lo que encaja en céspedes donde preocupan mascotas y polinizadores

⚠️ En contra

  • Solo quemado — UC IPM indica que el hierro-HEDTA no mata las raíces, así que las malezas perennes vuelven
  • La etiqueta programa una repetición cada 3 o 4 semanas, con un máximo de 4 aplicaciones al año
  • Alrededor de 5 veces el costo por cada 1,000 pies cuadrados de un granulado abono-herbicida
  • No está en la lista OMRI y UC IPM lo clasifica como biopesticida, no como orgánico, pese al enfoque natural
  • Mancha el colchón; manténgase fuera hasta que seque
  • No aplicar por encima de 85 °F, y evitar el agrostis — la etiqueta no enumera especies de césped aprobadas, solo indica probar antes en una zona pequeña

Tipo de producto

Iron-Based Selective Herbicide

Ingrediente activo

Iron HEDTA (FeHEDTA) 26.52%

Rango de precio

$28–$35

Cobertura

Roughly 640–1,280 sq ft per 32 oz bottle (6.4 gal of spray at 5–10 gal per 1,000 sq ft)

Ideal para

Tratar puntualmente malezas de hoja ancha y musgo sin esparcir un herbicida sintético

nuestra calificación editorial

3.5 out of 5

De dónde salen nuestros datos

Etiqueta leída en el PDF del titular del registro

EPA Reg. No. 67702-26-4

Lea la etiqueta usted mismo →

Leímos la etiqueta impresa publicada por la empresa titular del registro. La EPA no aloja un PDF de esta, así que es el mejor texto disponible.

What we found when we read it

Label read 2026-08-02 (Bonide's own label PDF; registrant 67702 is W. Neudorff GmbH, Bonide distributes). Iron HEDTA 26.52% confirmed. Every caution in this record checks out: do not apply above 85F, do not apply to bentgrass, rainfast/irrigation interval 3 hours, maximum 4 applications per area per year, may stain thatch, re-seed permitted 1 day after applying. THE FINDING: the moss/algae/lichen use carries an asterisk reading 'Not for use in California'. Our California page recommended this product for moss; corrected 2026-08-02 in both this record and organic-weed-killer-for-lawns.mdx. The label names no approved turf species at all — only the bentgrass exclusion and a test-a-small-area instruction — so grass_types here is our own relevance judgement, not a label claim.

Where this page and the container disagree, the container wins — the label is the legal authority on rates and restrictions. How to read one yourself.

Dónde Importa Este Producto

Contrastado con la presión real de enfermedades, malezas y plagas de cada estado.

🌾 Centipede🌾 Bermuda🌾 St. Augustine🌾 Zoysia🌾 Tall Fescue

Ventana de aplicación: April–May and September, and check every label against centipede before it leaves the shelf

DandelionWhite clover
🌾 Kentucky Bluegrass🌾 Perennial Ryegrass

Ventana de aplicación: June through July, inside the same short window everything else happens in. There is no autumn second chance

🌾 Bermuda🌾 Perennial Ryegrass🌾 Zoysia🌾 St. Augustine

Ventana de aplicación: March–May and during monsoon flushes; Celsius-type products handle 100°F+ windows

Henbit
🌾 Bermuda🌾 Zoysia🌾 Tall Fescue🌾 St. Augustine🌾 Centipede

Ventana de aplicación: Bounded by the label's temperature ceiling rather than the calendar — spring treatments finish before the June heat arrives, and nothing selective goes down again until September cools off

Oxalis (creeping woodsorrel)
🌾 Tall Fescue🌾 Bermuda🌾 St. Augustine🌾 Zoysia

Ventana de aplicación: March–May while weeds are young; avoid spraying drought-stressed turf in summer

⚖️ Label exclusion first: the moss, algae and lichen use is marked not for use in California, so here this is a broadleaf spot-treatment only. What still applies is the cool-weather range, which suits a Mediterranean winter weed flush when 2,4-D products work slowly, and it sidesteps the atrazine setbacks near water.

DandelionWhite clover
🌾 Kentucky Bluegrass🌾 Fine Fescue🌾 Perennial Ryegrass

Ventana de aplicación: May–June and September; high-altitude sun makes stressed turf easy to injure, so spot-treat rather than blanket-spray

DandelionWhite cloverBroadleaf plantain
🌾 Kentucky Bluegrass🌾 Tall Fescue🌾 Perennial Ryegrass

Ventana de aplicación: Broadleaf sprays in May–June and again in September, when the weeds are moving sugars to the roots; skip July and August, when a stressed cool-season lawn takes the injury and the weed does not

White cloverGround ivy
🌾 Tall Fescue🌾 Zoysia🌾 Kentucky Bluegrass🌾 Perennial Ryegrass

Ventana de aplicación: April to late May, then September into October. Skip July and August entirely: this is the transition zone, and a stressed tall fescue lawn takes the injury the weed shrugs off

🌾 St. Augustine🌾 Bahiagrass🌾 Zoysia🌾 Bermuda🌾 Centipede

Ventana de aplicación: March–May and October–November; avoid applications above 85°F

🌾 Bermuda🌾 Zoysia🌾 Centipede🌾 St. Augustine🌾 Tall Fescue

Ventana de aplicación: April to early June and September–October; avoid mid-summer sprays on stressed turf

Oxalis
🌾 Bermuda🌾 Zoysia🌾 St. Augustine🌾 Centipede

Ventana de aplicación: Year-round where the turf is actively growing, which is most of the time; the constraint is heat and drought stress on the leeward side rather than a dormant season

DandelionWhite clover
🌾 Kentucky Bluegrass🌾 Perennial Ryegrass🌾 Tall Fescue

Ventana de aplicación: Late April into June, then September into October; skip the July and early August heat, which is also when UI's own fertilizer schedule goes quiet

Dandelion
🌾 Kentucky Bluegrass🌾 Tall Fescue🌾 Perennial Ryegrass🌾 Fine Fescue🌾 Zoysia

Ventana de aplicación: May–June and September; fall beats creeping charlie best

DandelionGround ivyWhite clover
🌾 Kentucky Bluegrass🌾 Perennial Ryegrass🌾 Fine Fescue🌾 Zoysia

Ventana de aplicación: October is the most effective month for broadleaf weeds; never apply above 80°F or to drought-stressed turf

DandelionWhite clover
🌾 Kentucky Bluegrass🌾 Perennial Ryegrass🌾 Tall Fescue🌾 Fine Fescue

Ventana de aplicación: October, and October is most of it — but check the wind and the date against what is happening in the fields, because early-summer growth-regulator drift is a real seasonal risk here and your own spray carries the same way

Henbit and other winter annuals, which own an eastern Kansas lawn in MarchDandelion
🌾 Tall Fescue🌾 Zoysia🌾 Kentucky Bluegrass

Ventana de aplicación: April into May and again in September–October; avoid July and August, when a tall fescue lawn here is already at its limit

HenbitGround ivy
🌾 Kentucky Bluegrass🌾 Zoysia🌾 Bermuda🌾 Fine Fescue

Ventana de aplicación: April–May and September–October; autumn is the knockout window for the wild garlic that defines a Kentucky winter lawn

🌾 St. Augustine🌾 Bermuda🌾 Zoysia

Ventana de aplicación: March–May and October–November; avoid applications above 85°F and never on drought-stressed St. Augustine

DandelionWhite cloverBroadleaf plantainGround ivyMoss — in Maine usually the correct reading of shade, acidity and compaction rather than a weed to spray
🌾 Kentucky Bluegrass🌾 Tall Fescue🌾 Perennial Ryegrass

Ventana de aplicación: June, then a narrow late-August to mid-September window. Maine's usable autumn is the shortest in New England

Ground ivy (creeping charlie)White clover
🌾 Kentucky Bluegrass🌾 Fine Fescue🌾 Zoysia🌾 Bermuda

Ventana de aplicación: April–May and September–October; autumn is the knockout window for the ground ivy and violet the Piedmont is full of

DandelionGround ivyWhite cloverMoss (shade, acidity and compaction together)
🌾 Kentucky Bluegrass🌾 Fine Fescue🌾 Perennial Ryegrass🌾 Tall Fescue

Ventana de aplicación: A narrow autumn is the real window here: late September into October, after the summer heat and before New England's early frost closes the season

DandelionGround ivy (creeping charlie)White clover
🌾 Kentucky Bluegrass🌾 Perennial Ryegrass🌾 Fine Fescue

Ventana de aplicación: May–June and September; autumn is the stronger window for perennial broadleaf weeds

Dandelion
🌾 Kentucky Bluegrass🌾 Fine Fescue🌾 Perennial Ryegrass

Ventana de aplicación: Late May–June and September; autumn is the stronger window for perennial broadleaf weeds

🌾 Bermuda🌾 Centipede🌾 St. Augustine🌾 Zoysia🌾 Bahiagrass

Ventana de aplicación: April–May and September, avoiding the midsummer heat restrictions on most labels

HenbitDandelionWhite clover
🌾 Zoysia🌾 Kentucky Bluegrass🌾 Bermuda🌾 Fine Fescue

Ventana de aplicación: April–May and September–October; skip summer sprays on drought-stressed fescue

DandelionWhite clover
🌾 Kentucky Bluegrass🌾 Perennial Ryegrass🌾 Tall Fescue

Ventana de aplicación: June, then late August into September. In a sub-100-day valley there is no third chance

DandelionHenbit and other winter annualsWhite clover
🌾 Kentucky Bluegrass🌾 Tall Fescue🌾 Perennial Ryegrass🌾 Zoysia

Ventana de aplicación: Late spring and again from late August through September, when perennial broadleaf weeds are moving reserves to the root

🌾 Tall Fescue🌾 Bermuda🌾 Kentucky Bluegrass🌾 Perennial Ryegrass

Ventana de aplicación: March–April and October in the south; May and September in the north

DandelionWhite cloverGround ivyBroadleaf plantainMoss — which in New Hampshire is usually the honest verdict on shade, acidity and compaction rather than a weed to kill
🌾 Kentucky Bluegrass🌾 Perennial Ryegrass🌾 Tall Fescue

Ventana de aplicación: Late May into June, then late August through September. The autumn window closes earlier here than anywhere else in southern New England

DandelionWhite cloverBroadleaf plantainGround ivy
🌾 Kentucky Bluegrass🌾 Perennial Ryegrass🌾 Fine Fescue

Ventana de aplicación: May and September–October; autumn is the knockout window for perennial broadleaf weeds

🌾 Bermuda🌾 Kentucky Bluegrass🌾 Tall Fescue🌾 Perennial Ryegrass🌾 Zoysia

Ventana de aplicación: Spring and early autumn; in the south skip the June heat entirely, and in the north the usable autumn window closes by early October

DandelionGround ivyWhite clover
🌾 Kentucky Bluegrass🌾 Fine Fescue🌾 Perennial Ryegrass

Ventana de aplicación: May and September–October; autumn is the knockout window for perennial broadleaf weeds

HenbitWhite clover
🌾 Tall Fescue🌾 Bermuda🌾 Zoysia🌾 Centipede🌾 Kentucky Bluegrass

Ventana de aplicación: April–May and September–October; avoid spraying heat-stressed fescue in July–August

DandelionWhite clover
🌾 Kentucky Bluegrass🌾 Perennial Ryegrass🌾 Tall Fescue

Ventana de aplicación: Early to mid-June, then late August into early September. There is no third opportunity

DandelionGround ivy (creeping charlie)White cloverBroadleaf plantain
🌾 Kentucky Bluegrass🌾 Perennial Ryegrass🌾 Tall Fescue🌾 Fine Fescue

Ventana de aplicación: May–June and September; fall applications hit dandelion taproots hardest

Henbit
🌾 Bermuda🌾 Zoysia🌾 Tall Fescue🌾 Bahiagrass

Ventana de aplicación: Judged by wind before season: sustained wind is Oklahoma's normal condition, so the usable spray days are calm mornings in April, May and September rather than whole months

Moss (west of the Cascades this is the lawn problem, not a side note)Dandelion
🌾 Perennial Ryegrass🌾 Fine Fescue🌾 Kentucky Bluegrass🌾 Tall Fescue

Ventana de aplicación: March–May and September–October; the long mild shoulder seasons give more usable spray days than most states get

DandelionGround ivyWhite clover
🌾 Kentucky Bluegrass🌾 Tall Fescue🌾 Perennial Ryegrass🌾 Fine Fescue

Ventana de aplicación: May and September — fall is the knockout window for perennial broadleaf weeds

⚖️ Useful in the shoulder seasons here: it stays active down to 50°F, and moss control matters on shaded, acidic northern lawns.

DandelionWhite cloverGround ivyBroadleaf plantain
🌾 Kentucky Bluegrass🌾 Perennial Ryegrass🌾 Tall Fescue

Ventana de aplicación: Broadleaf work in May–June and again in September; the September pass is the one that holds, because the weed is moving reserves down

🌾 Bermuda🌾 Zoysia🌾 St. Augustine🌾 Tall Fescue

Ventana de aplicación: April–May and September–October, and never above 90°F — centipedegrass is sensitive to 2,4-D both at spring green-up and in summer heat

DandelionWhite clover
🌾 Kentucky Bluegrass🌾 Perennial Ryegrass🌾 Tall Fescue

Ventana de aplicación: Early to mid-June, then late August into September, which is the pass that actually holds on perennial broadleaf weeds

Henbit
🌾 Tall Fescue🌾 Bermuda🌾 Zoysia🌾 Kentucky Bluegrass

Ventana de aplicación: April–May and September–October; skip sprays on drought-stressed summer fescue

Henbit
🌾 Bermuda🌾 St. Augustine🌾 Zoysia🌾 Tall Fescue

Ventana de aplicación: April–early June and September–October; avoid herbicides above 90°F

Dandelion
🌾 Kentucky Bluegrass🌾 Tall Fescue🌾 Perennial Ryegrass🌾 Fine Fescue

Ventana de aplicación: May and September, avoiding the intense midsummer heat on the label

DandelionWhite cloverGround ivyBroadleaf plantainMoss — usually the correct diagnosis for shade, acidity and compaction rather than a weed with a chemical answer
🌾 Kentucky Bluegrass🌾 Perennial Ryegrass🌾 Tall Fescue

Ventana de aplicación: Late May through June, then a short late-August to mid-September window. Vermont's autumn window is the narrowest in New England

DandelionWhite clover
🌾 Tall Fescue🌾 Bermuda🌾 Zoysia🌾 Kentucky Bluegrass🌾 Fine Fescue

Ventana de aplicación: April–May and September–October; skip sprays on heat-stressed fescue in July and August

Moss (the defining western Washington lawn problem)DandelionWhite clover
🌾 Perennial Ryegrass🌾 Fine Fescue🌾 Kentucky Bluegrass

Ventana de aplicación: April–May and September–October; WSU caps applications at 80°F, stricter than the 85–90°F ceilings used elsewhere

White cloverBroadleaf plantain
🌾 Tall Fescue🌾 Kentucky Bluegrass🌾 Perennial Ryegrass🌾 Zoysia

Ventana de aplicación: April into May and again in September–October. Skip July and August: this is transition-zone country and a heat-stressed tall fescue lawn absorbs the injury the weed does not

DandelionWhite cloverBroadleaf plantain
🌾 Kentucky Bluegrass🌾 Fine Fescue🌾 Perennial Ryegrass

Ventana de aplicación: Early to mid-fall is the favourable window for dandelion and other perennial broadleaf weeds

DandelionWhite clover
🌾 Kentucky Bluegrass🌾 Tall Fescue

Ventana de aplicación: June, then late August into September. UW's own framing is useful: a slow-release application covers a 90 to 100 day growing season, which is roughly the entire Wyoming season

Common questions

Common Questions

¿Cuánto cuesta Bonide Captain Jack's Lawnweed Brew Concentrate?

Bonide Captain Jack's Lawnweed Brew Concentrate suele costar $28–$35 y cubre Roughly 640–1,280 sq ft per 32 oz bottle (6.4 gal of spray at 5–10 gal per 1,000 sq ft).

¿Qué controla Bonide Captain Jack's Lawnweed Brew Concentrate?

Bonide Captain Jack's Lawnweed Brew Concentrate actúa sobre Dandelion, White clover, Broadleaf plantain, Henbit, Oxalis (creeping woodsorrel), Ground ivy (creeping charlie), entre otros.

¿Cuál es el ingrediente activo de Bonide Captain Jack's Lawnweed Brew Concentrate?

Iron HEDTA (FeHEDTA) 26.52%, registrado con el n.º de registro EPA 67702-26-4.

¿Cuál es la mayor desventaja de Bonide Captain Jack's Lawnweed Brew Concentrate?

Solo quemado — UC IPM indica que el hierro-HEDTA no mata las raíces, así que las malezas perennes vuelven

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