Spectracide® Weed Stop® For Lawns Plus Crabgrass Killer (Ready-to-Use)

Use Spectracide Weed Stop For Lawns Plus Crabgrass Killer (Ready-to-Use) to put an end to weeds in your lawn. It kills over 250 types of weeds as listed, including crabgrass. The product produces visible results in just 8 hours.This product kills broadleaf and troublesome grass weeds including dandelion, chickweed and clover as well as crabgrass, foxtail and yellow nutsedge, see product label for complete list of weed types. Apply when daytime temperatures are between 45°F and 90°F. Do not apply to Bermudagrass when daytime temperatures exceed 85°F.

  • Kills yellow nutsedge
  • See results in 8 hours
  • Kills over 250 weed types as listed, including crabgrass
  • Kills tough lawn weeds
  • Won't harm lawns when used as directed

Active Ingredients

2,4-D, dimethylamine salt 0.253%
Quinclorac 0.121%
Dicamba, dimethylamine salt 0.029%
Sulfentrazone 0.015%
Other Ingredients 99.582%
Total 100.000%
0.018 lb. 2,4-dichlorophenoxyacetic acid equivalent per gallon or 0.210%
0.010 lb. 3,7-dichloro-8-quinolinecarboxylic acid per gallon or 0.121%
0.002 lb. 3,6-dichloro-o-anisic acid equivalent per gallon or 0.024%
0.001 lb. N-[2,4-dichloro-5-[4-(difluoromethyl)-4,5-dihydro-3-methyl-5-oxo-1H-1,2,4-triazol-1-yl]phenyl] methanesulfonamide per gallon or 0.015%
Isomer Specific by AOAC Method.
  • 1 gal
  • 32 fl oz
  • amaranth, purple
  • amaranth, slender
  • artichoke
  • aster, heath
  • aster, purple
  • aster, white heath
  • aster, white prairie
  • Austrian fieldcress
  • bedstraw, catchweed
  • bedstraw, northern
  • bedstraw, pineywoods
  • bedstraw, smooth
  • beggarticks, hairy
  • betony, Florida
  • bindweed, field
  • bindweed, hedge
  • bitter wintercress
  • bittercress, hairy
  • bitterweed
  • black-eyed Susan
  • black medic
  • blood flower milkweed
  • blue lettuce
  • brassbuttons
  • bristly oxtongue
  • broomweed
  • buckhorn
  • bullnettle
  • burclover
  • burdock
  • burweed, lawn (spurweed)
  • buttercup, bulbous
  • buttercup, creeping
  • buttonweed, common (poorjoe)
  • buttonweed, Virginia
  • Carolina geranium (wild)
  • carpetweed
  • catnip
  • catsear, spotted (false dandelion)
  • chamber bitter
  • chickweed, common
  • chickweed, mouseear
  • chickweed, sticky
  • chicory
  • cinquefoil
  • clover, alsike
  • clover, crimson
  • clover, hop
  • clover, rabbit foot
  • clover, red
  • clover, strawberry
  • clover, white
  • clover, white sweet
  • clover, yellow sweet
  • cockle
  • cocklebur
  • cocklebur, oriental
  • cocklebur, spiny
  • common mullein
  • corn spurry
  • creeping beggarweed
  • creeping Jenny (creeping Charlie)
  • cudweed
  • cupid shaving brush
  • daisy, English
  • daisy, oxeye
  • dandelion, common
  • dandelion, false
  • day flower
  • deadnettle
  • dichondra
  • dock, broadleaf
  • dock, curly
  • dogbane
  • dogfennel
  • dollarweed (pennywort)
  • doveweed
  • elderberry
  • false sunflower
  • falseflax
  • fiddleneck
  • filaree, redstem
  • filaree, whitestem
  • fleabane, daisy (annual)
  • fleabane, rough
  • galinsoga, hairy
  • galinsoga, smallflower
  • goldenrod
  • ground ivy
  • groundsel
  • gumweed
  • hairy fleabane
  • hawkweed, meadow
  • hawkweed, mouseear
  • hawkweed, orange
  • hawkweed, yellow
  • healall
  • heartleaf drymary
  • hemp
  • henbit
  • hoary cress
  • horsenettle
  • horseweed
  • jimsonweed
  • Johnny-jumpup violet
  • knawel
  • knotweed, prostrate
  • kochia
  • lambsquarters
  • lespedeza
  • mallow, alkali
  • mallow, bristly
  • mallow, common
  • mallow, dwarf
  • mallow, Venice
  • marcela
  • matchweed
  • Mexicanweed
  • moneywort
  • morningglory, bigroot
  • morningglory, ivyleaf
  • morningglory, Mexican
  • morningglory, red
  • morningglory, tall
  • morningglory, woolly
  • mugwort
  • mustard, ball
  • mustard, black
  • mustard, blue
  • mustard, hedge
  • mustard, Indian
  • mustard, tansy
  • mustard, tumble
  • mustard, white
  • mustard, wormseed
  • nettle, stinging (burning)
  • nettle, tall
  • nettle, wood
  • parsley-piert
  • parsnip
  • pearlwort
  • pennycress (Frenchweed)
  • pepperweed, perennial
  • pepperweed, Virginia (peppergrass)
  • pigweed, prostrate
  • pigweed, redroot
  • pigweed, Russian
  • pigweed, smooth
  • pigweed, tumble
  • pineappleweed
  • plains coreopsis (tickseed)
  • plantain, blackseed
  • plantain, bracted
  • plantain, broadleaf
  • plantain, buckhorn
  • plantain, hoary
  • plantain, narrowleaf
  • plantain, woolly
  • poison ivy
  • poison oak
  • pokeweed
  • prairie sunflower
  • prickly lettuce (compass plant)
  • prickly sida
  • prostrate knotweed
  • puncturevine
  • purslane, common
  • pusley, Brazil
  • pusley, Florida
  • pusley, large flower
  • ragweed, bur
  • ragweed, common
  • ragweed, lanceleaf
  • ragweed, western
  • redstem filaree
  • scarlet pimpernel
  • shepherdspurse
  • smartweed, ladysthumb
  • smartweed, pale
  • smartweed, Pennsylvania
  • smooth chaff-flower
  • smooth dock
  • sorrel, red (sheep)
  • sowthistle, annual
  • sowthistle, spiny
  • Spanish needles
  • speedwell, bi-lobed
  • speedwell, common
  • speedwell, corn
  • speedwell, ivyleaf
  • speedwell, Persian
  • speedwell, purslane
  • speedwell, slender
  • speedwell, thymeleaf
  • spiny amaranth
  • spurge, prostrate
  • spurge, spotted
  • spurweed
  • star of Bethlehem
  • strawberry, Indian mock
  • tansy ragwort
  • tanweed
  • thistle, blessed
  • thistle, bull
  • thistle, Canada
  • thistle, flodman (prairie)
  • thistle, musk
  • thistle, platte
  • thistle, plumeless
  • thistle, Russian
  • thistle, Scotch
  • thistle, wavyleaf
  • trailing crownvetch
  • velvetleaf
  • vervain, blue
  • vervain, hoary
  • vervain, prostrate
  • vervain, tall
  • vetch, bird
  • vetch, hairy
  • vetch, milk
  • vetch, narrowleaf
  • vetch, wild
  • Virginia creeper
  • western clematis
  • western salsify
  • wild aster
  • wild buckweat
  • wild carrot
  • wild four-o-clock
  • wild garlic
  • wild marigold
  • wild mustard (yellow rocket)
  • wild onion
  • wild parsnip
  • wild radish
  • wild rape
  • wild strawberry
  • wild sweet potato
  • wild violet
  • woodsorrel, creeping
  • woodsorrel, violet
  • woodsorrel, yellow (oxalis)
  • woolly croton
  • wormseed
  • yarrow, common
  • yarrow, western
  • yarrow, yellow

GRASSY WEEDS CONTROLLED: crabgrass, large and smooth; foxtail, green, giant and yellow; yellow nutsedge

It is a violation of Federal law to use this product in a manner inconsistent with its labeling.
Do not apply this product in a way that will contact any person or pet, either directly or through drift. Keep people and pets out of the area during application. Do not allow people or pets to enter the treated area until sprays have dried.

For home lawn care:
Spectracide® Weed Stop® For Lawns Plus Crabgrass Killer is a ready-to-use (RTU) product intended for “spot” treatment of individual broadleaf and grass weeds by homeowners on residential lawns. This product should be applied to lawns containing the following species of grass: Kentucky bluegrass, perennial ryegrass, fescue species (including tall, red and fine leaf varieties), Bermudagrass*, buffalograss and zoysiagrass.
*Application to Bermudagrass may cause temporary yellowing or discoloration but full recovery can be expected. Do not apply to Bermudagrass when daytime temperatures exceed 85˚F.

Spectracide Weed Stop For Lawns Plus Crabgrass Killer should not be used on lawns containing bentgrass, St. Augustinegrass, bahiagrass, centipedegrass or carpetgrass. Do not use on dichondra, lawns with desirable clovers or legumes, vegetable gardens, fruits or ornamentals (flowers, trees, groundcovers, hedges, landscape/flower beds and shrubs).

This 1 gal retail container size treats approximately 1,000 weeds or up to 1,000 sq ft. 

This 32 fl oz retail container size treats approximately 250 weeds or up to 250 sq ft. 

1 Gallon container

  1. Shake well before each use.
  2. Peel sticker from flip-top cap and open cap. Discard sticker.
  3. Remove sprayer from its slot beneath the bottle handle and remove and discard plastic wrap. Pull black hose tip to completely extend tubing.
  4. Firmly press black hose tip into opening in cap until it snaps into place.
  5. Hold sprayer below the level of the container and prime by pumping trigger several times until product is dispensed.
  6. Adjust nozzle to desired setting.
  1. To store, turn sprayer nozzle off.
  2. DO NOT disconnect hose.
  3. Return sprayer to its slot. Hose can be pushed back into sprayer handle.

32 fl oz container

  1. Shake well.
  2. Adjust nozzle to coarse spray pattern to minimize wind drift.
  3. Spray just enough Spectracide® Weed Stop® For Lawns Plus Crabgrass Killer to lightly cover grass and broadleaf weeds. Excessive spraying can injure some lawns. Do not apply when daytime temperatures are above 90°F as lawn injury can occur. Spray only the weeds, not the entire lawn.
  4. Weeds will begin wilting and browning overnight.

  • Some hard-to-kill weeds may require re-treatment. Wait at least 30 days between applications — some weeds can take that long to die.
  • Rainproof — rain or watering three hours after application will not wash away effectiveness. If rainfall occurs within three hours of application, the product should be reapplied.
  • Do not allow spray to drift onto desirable plants since injury may result.
Do not contaminate water, food, or feed by storage and disposal.
PESTICIDE STORAGE: Turn the nozzle to "OFF" position and store with sprayer above the level of liquid in container to prevent leakage. Store in original container in an area inaccessible to children and pets.
PESTICIDE DISPOSAL AND CONTAINER HANDLING: Nonrefillable container. Do not reuse or refill this container. If empty: Place in trash or offer for recycling if available. If partly filled: Call your local solid waste agency for disposal instructions. Never place unused product down any indoor or outdoor drain.
Hazards to Humans and Domestic Animals

CAUTION: Causes moderate eye irritation. Avoid contact with eyes or clothing. Harmful if swallowed. Wear long-sleeved shirt and long pants, shoes plus socks and gloves. Wash thoroughly with soap and water after handling and before eating, drinking, chewing gum, using tobacco or using the toilet.

First Aid
If Swallowed
  • Call a poison control center or doctor immediately for treatment advice.
  • Have person sip a glass of water if able to swallow.
  • Do not induce vomiting unless told to do so by the poison control center or doctor.
  • Do not give anything by mouth to an unconscious person.
If in Eyes
  • Hold eyes open and rinse slowly and gently with water for 15-20 minutes. Remove contact lenses, if present, after the first 5 minutes, then continue rinsing eye.
  • Call a poison control center for treatment advice.
Have the product container or label with you when calling a poison control center or doctor or going for treatment. You may also contact 1-800-917-5438 for emergency medical treatment advice.

Environmental Hazards
This pesticide is toxic to fish and aquatic invertebrates. Drift and runoff may be hazardous to aquatic organisms in water adjacent to treated areas. To protect the environment, do not allow pesticide to enter or run off into storm drains, drainage ditches, gutters or surface waters. Applying this product in calm weather when rain is not predicted for the next 24 hours will help to ensure that wind or rain does not blow or wash pesticide off the treatment area.
This chemical has properties and characteristics associated with chemicals detected in groundwater. The use of this chemical in areas where soils are permeable, particularly where the water table is shallow, may result in groundwater contamination. Application around a cistern or well may result in contamination of drinking water or groundwater.

To the extent required by applicable law, buyer assumes all responsibility for safety and use not in accordance with directions.

Questions & Comments? Call 1-800-917-5438 or visit our website at www.spectracide.com