
Weed Control
How Long After Spraying Weed Killer Can I Mow? Two Waits
Iowa State gives two numbers, not one: do not mow 2 to 3 days before, and wait 3 to 4 days after. The half nobody asks about is the one that decides the result.

Weed & Feed (Fertilizer + Herbicide)
★★★★☆ 3.5/5
nuestra calificación editorial cómo puntuamos4.4/5 según 36,521 compradores en Amazon — su cifra, no la nuestra.
$25–$35
Precio habitual · 5,000 sq ft per 14.29 lb bag
Enlaces de afiliado — consulte nuestra divulgación. Las comisiones nunca influyen en los veredictos.
Genuinamente eficaz contra diente de león y trébol — pero es un herbicida de hoja ancha, así que no hace nada contra el crabgrass, y su mitad fertilizante rara vez cae en el mes correcto.
La comodidad es real y el compromiso también. El herbicida de tres vías (2,4-D, MCPP, dicamba) controla bien el diente de león, el trébol y la mayoría de las malezas de hoja ancha. El problema es el calendario: esto lleva un 28% de nitrógeno, y en la mayoría de los estados el mes en que sus malezas de hoja ancha son pulverizables no es el mes en que debe fertilizar el césped. Cómprelo cuando un césped tenga malezas de hoja ancha extendidas Y de verdad toque fertilizarlo en la misma ventana — no como rutina primaveral por defecto, y nunca sobre San Agustín Floratam.
Tipo de producto
Weed & Feed (Fertilizer + Herbicide)
Ingrediente activo
28-0-3 fertilizer combined with 2,4-D, mecoprop-p (MCPP) and dicamba; phosphorus-free
Rango de precio
$25–$35
Cobertura
5,000 sq ft per 14.29 lb bag
Ideal para
Un césped con malezas de hoja ancha por todas partes que además toca fertilizar en esa misma ventana
nuestra calificación editorial
3.5 out of 5
Contrastado con la presión real de enfermedades, malezas y plagas de cada estado.
Ventana de aplicación: April–May and September, and check every label against centipede before it leaves the shelf
Ventana de aplicación: June through July, inside the same short window everything else happens in. There is no autumn second chance
Ventana de aplicación: March–May and during monsoon flushes; Celsius-type products handle 100°F+ windows
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
Ventana de aplicación: March–May while weeds are young; avoid spraying drought-stressed turf in summer
Ventana de aplicación: May–June and September; high-altitude sun makes stressed turf easy to injure, so spot-treat rather than blanket-spray
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
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
Ventana de aplicación: March–May and October–November; avoid applications above 85°F
⚖️ Wrong bag for most Florida lawns: the label prohibits Floratam St. Augustine, and many counties also ban nitrogen June 1 – September 30. Use the Southern (Bonus S) formulation instead, outside the blackout.
Ventana de aplicación: April to early June and September–October; avoid mid-summer sprays on stressed turf
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
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
Ventana de aplicación: May–June and September; fall beats creeping charlie best
Ventana de aplicación: October is the most effective month for broadleaf weeds; never apply above 80°F or to drought-stressed turf
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
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
Ventana de aplicación: April–May and September–October; autumn is the knockout window for the wild garlic that defines a Kentucky winter lawn
Ventana de aplicación: March–May and October–November; avoid applications above 85°F and never on drought-stressed St. Augustine
Ventana de aplicación: June, then a narrow late-August to mid-September window. Maine's usable autumn is the shortest in New England
Ventana de aplicación: April–May and September–October; autumn is the knockout window for the ground ivy and violet the Piedmont is full of
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
Ventana de aplicación: May–June and September; autumn is the stronger window for perennial broadleaf weeds
Ventana de aplicación: Late May–June and September; autumn is the stronger window for perennial broadleaf weeds
Ventana de aplicación: April–May and September, avoiding the midsummer heat restrictions on most labels
Ventana de aplicación: April–May and September–October; skip summer sprays on drought-stressed fescue
Ventana de aplicación: June, then late August into September. In a sub-100-day valley there is no third chance
Ventana de aplicación: Late spring and again from late August through September, when perennial broadleaf weeds are moving reserves to the root
Ventana de aplicación: March–April and October in the south; May and September in the north
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
Ventana de aplicación: May and September–October; autumn is the knockout window for perennial broadleaf weeds
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
Ventana de aplicación: May and September–October; autumn is the knockout window for perennial broadleaf weeds
Ventana de aplicación: April–May and September–October; avoid spraying heat-stressed fescue in July–August
Ventana de aplicación: Early to mid-June, then late August into early September. There is no third opportunity
Ventana de aplicación: May–June and September; fall applications hit dandelion taproots hardest
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
Ventana de aplicación: March–May and September–October; the long mild shoulder seasons give more usable spray days than most states get
Ventana de aplicación: May and September — fall is the knockout window for perennial broadleaf weeds
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
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
Ventana de aplicación: Early to mid-June, then late August into September, which is the pass that actually holds on perennial broadleaf weeds
Ventana de aplicación: April–May and September–October; skip sprays on drought-stressed summer fescue
Ventana de aplicación: April–early June and September–October; avoid herbicides above 90°F
⚖️ Safe on Bermuda and zoysia here, but not on St. Augustine lawns — common across Houston and the Gulf Coast. Check your grass before you spread.
Ventana de aplicación: May and September, avoiding the intense midsummer heat on the label
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
Ventana de aplicación: April–May and September–October; skip sprays on heat-stressed fescue in July and August
Ventana de aplicación: April–May and September–October; WSU caps applications at 80°F, stricter than the 85–90°F ceilings used elsewhere
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
Ventana de aplicación: Early to mid-fall is the favourable window for dandelion and other perennial broadleaf weeds
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
Scotts Turf Builder Weed & Feed₃ (28-0-3) suele costar $25–$35 y cubre 5,000 sq ft per 14.29 lb bag.
Scotts Turf Builder Weed & Feed₃ (28-0-3) actúa sobre Dandelion, White clover, Henbit, Wild violet, Broadleaf plantain, Ground ivy (creeping charlie), entre otros.
28-0-3 fertilizer combined with 2,4-D, mecoprop-p (MCPP) and dicamba; phosphorus-free.
No controla crabgrass, pata de gallina, dallisgrass ni coquillo
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Weed Control
Iowa State gives two numbers, not one: do not mow 2 to 3 days before, and wait 3 to 4 days after. The half nobody asks about is the one that decides the result.

Fertilizer
Weed and feed does two jobs on two different calendars, so one bag rarely times both right. The month it works, and the lawns the label forbids.

Fertilizer
When to fertilize a lawn: autumn matters more than spring for cool-season grass, the reverse for warm-season — plus the state laws that close the window.

Weed Control
Killing dandelions without killing grass comes down to the taproot: the selective herbicides that reach it, and the month they actually work.
Boletín de Lawn Health
Ventanas de preemergentes, alertas de enfermedades y calendarios de fertilización para su región — un correo corto, justo cuando su césped lo necesita.
Gratis para siempre. Cancele cuando quiera. Solo céspedes en EE. UU. (por ahora). Los correos se envían en inglés. El complemento de esta temporada: la lista imprimible de verano .