Top 13 Best Pre Emergent Weed Killer In 2024

Apply this product only in EARLY SPRING and FALL

Barricade professional-grade pre-emergent weed control is designed to prevent weeds, and will not aid in eliminating existing weeds.

Contains 0.48% of the active ingredient prodiamine - Labeled to prevent over 30 grass and broadleaf weeds

Trusted by top turf care professionals to prevent problem weeds without harming desirable plants

DG Pro formulation allows for more particles per square inch of chemical - leads to better control of weeds

5OZ BOTTLE - Professionally formulated for DIYers who want small quantities of pre emergent. Enough for 1 entire season on a 10,000 square foot yard.

STOP CRABGRASS - Use this in spring and fall to stop crabgrass and poa annua as a pre emergent but this also stops other listed weeds. See full product description below.

WATER DISPERSIBLE GRANULE (WDG) - Mix in water and sprayed out as a liquid via pump or battery sprayer. Product must be watered in.

SPRING AND FALL APPLICATIONS - Mix .183oz or 5.2 grams of prodiamine 65 WDG in 1 gallon of water and this spray mix can cover 1,000 sq ft.

FOR ALL GRASS TYPES - Ok On Kentucky Bluegrass, Perennial Rye, Turf Type Tall Fescue, Bermuda, Zoysia, St Augustine, Centipede and Bahia Grasses.

1 application blocks weeds up to 6 months

When used as directed Preen Extended Control Weed Preventer can be used around more than 600 perennials, groundcovers, shrubs and trees as listed on the product label

Applicator scoop included

Not intended for use on flower seeds, lawns, vegetable gardens, water gardens or other food-producing or edible plants

Not available for sale in NY

Covers 2,245 sq. ft.

Sold on Amazon

one application prevents crabgrass all season long

apply in spring to prevent crabgrass and problem weeds all season long

fall application prevents winter weeds, such as poa annua, henbit and chickweed

rain, snow or freezing weather after application won't affect product performance

apply in fall to prevent moss

Liquid Harvest Mesotrione is a very useful herbicide as it prevents crabgrass seed germination and kills broadleaf weeds (dandelion and clover among others) on contact, while allowing certain cool season turfgrass to grow in a weed-free environment.

Liquid Harvest Mesotrione has a 40% active ingredient that inhibits photosynthesis in susceptible plant species. It is distributed throughout the plant after being absorbed by the plants through roots, shoots and leaves.

Liquid Harvest Mesotrione targets 46 broadleaf species of weed and grass. It can combat Barnyard grass, Carpetweed, Chickweed, Clover, Crabgrass (large & smooth), Dandelion, Foxtail, Goosegrass, Henbit, Yellow Nutsedge, Purslane, Thistle, Wild Carrot, and others.

For use in Kentucky Bluegrass, Centipede grass, Buffalo grass, Tall Fescue, Perennial Ryegrass, Fine Fescue, St. Augustine Grass (grown for sod only). DO NOT apply this product on Bentgrass, Poa annua, kikuyugrass, zoysiagrass, seashore paspalum, or bermudagrass. Mesotrione can only be used on bermudagrass that is still dormant when trying to remove weeds or target grasses from it. If the bermuda is only semi dormant you will see whitening and damage to the bermuda.

4 - 8 oz. per 30 gallons of water per acre, use a Surfactant to Increase Effectiveness and be sure to read label for full instructions

Not your typical weed killer! Mesotrione prevents photosynthesis in plants. It will absorb and start working immediately, however, it can take up to 2-3 weeks before full death occurs on your weeds

Mesotrione must be activated by water. If rainfall hasn’t occurred within 10 days of application, water the area with 0.15 inches of water

WEED AND GRASS KILLER FOR ORGANIC GARDENING: leaves no harmful residues and will not leach through the soil to harm desirable plants

FAST-ACTING: effective weed and grass control with visible results within 24 hours

NON-SELECTIVE HERBICIDE: ideal for edging and spot weed control around ornamental trees, bushes, and flowers

EPA-REGISTERED: the ideal choice for avid and new gardeners

KILLS UNWANTED BROADLEAF AND GRASS WEEDS: bittercress, chickweed, cudweed, lambsquarters, liverwort, marestail or horseweed rosettes, moss, mustards, oxalis or woodsorrel, plantain, plantago spp., pigweed, mallow sorrel, spurge, crabgrass, and many more

TRUSTED PERFORMER: Torocity contains 40.0% mesotrione; the same active ingredient as the leading brand. For more than 20 years, mesotrione has been the trusted choice for effective weed control in newly seeded areas as well as established turf.

FLEXIBLE APPLICATION TIMING: This double-hitter herbicide allows timing forgiveness with both pre- and post-emerge activity. Compared to pre-emerge only herbicides, Torocity widens the application window so you can stop new weeds before they start and take down the weeds you already have.

BROAD-SPECTRUM WEED CONTROL: Torocity delivers powerful control of many broadleaf and grassy weeds, including crabgrass, ground ivy, clover, oxalis, and dandelion.

IDEAL TURF RENOVATION PARTNER: Torocity is one of the few herbicides labeled for just-seeded Kentucky bluegrass, tall fescue, perennial ryegrass, and centipedegrass. Apply before seed germination to prevent weed competition and encourage new grass growth. Torocity may be used on new seedings, grass grown for sod, and established turf. Do not apply to certain species, including bentgrass, zoysiagrass, and actively growing Bermudagrass. See label for complete list of tolerant turfgrass species.

EASY-MEASURE TOOL INCLUDED: We took out the guesswork so you get the right rate – easily. Our pre-marked syringe highlights the exact amount of product needed per gallon of water. Torocity is activated by water, if rainfall doesn’t occur within 10 days of application, water the area with 0.15 inches of water.

RESTRICTIONS: NOT AVAILABLE FOR SALE IN ALASKA, ARIZONA, CALIFORNIA, HAWAII, OR WYOMING. Always read and follow label instructions. Not all products are registered for use in every state.

Won’t harm lawns: won’t harm lawns when used as directed – kills more than 200 types of weeds as listed

Pre-emergent crabgrass killer: prevents crabgrass and other undesirable annual grasses

Up to 5 months control: apply with a spreader at the rates directed on the product label

Apply spring through fall: apply when weeds are actively growing

Coverage: this 10.8 pound bag covers up to 3,000 square feet of lawn

PROVIDES OUTSTANDING PRE-EMERGENT CONTROL of over 20 broadleaf and more than 20 grassy weeds in your landscape, turf, and ornamental planting areas

TARGETS HARD TO CONTROL WEEDS: Crabgrass, Sandbur, Chickweed, Goosegrass, Poa Annua, Purslane, and many more

EASY TO USE: Convenient tip and measure packaging for easy and accurate application every time

EXCELLENT TANK MIX PARTNER: Can be mixed with post emergent herbicides for additional control

MIX RATE and USE SITE: Mix 1.1 – 1.6 fl oz per gallon of water per 1,000 sq ft on Residential Turf, Golf Courses, Commercial Turf, Landscape, Grounds Maintenance, Ornamental Plantings, and Tree Plantations (including noncropland areas)

✅CONTAINS NO GLYPHOSATE - Natural, Concentrated Formula STOPS Weeds and Grasses Right in Their Tracks. Weeds and Grass Will Look Like You Took A Torch To Them.

✅ EASY TO USE – Friendly for People & Pets. Ready To Use, Just Spray and Go. No Messy Mixing or Diluting.

✅ PLACES TO USE – Use Anywhere You Don’t Want Weeds and Grass Growing Such As, Around Flower Beds, Shrubs and Trees, Barns, Driveways, Edging, Fence Lines, Foundations, Gravel Areas, Mulch Beds, Overgrown Weed Areas, Parking Areas, Patios, Pavers, Pool Areas, Rock Walls and Pathways, Walkways, Wells & Water Systems. Any Location Where No Vegetation is Wanted

✅ FAST ACTING – See Results In Hours and Even Greater Results Shortly Thereafter.

✅ 30-DAY MONEY BACK GUARANTEE – OUR PRODUCT WORKS. Not Satisfied? We'll Refund Your Money, For Any Reason. No Questions Asked.

Pre-emergent herbicide - vegetable and ornamental weeder is designed for the control of annual grasses and broadleaf weeds in ornamental trees, Ornamental woody shrubs, Ornamental groundcovers, roses, established flowers, and vegetable gardens.

Seed control - this product controls weeds by killing Their seeds as they germinate, so it helps to prevent weeds from establishing. Soon, the weeds will be gone from your garden before they appear. However, it does not control established weeds.

Easy application - apply vegetable and ornamental weed Killer to the soil surface, and then water in. This is one of the few weed killers that can be used in vegetable gardens.

5 months of control - once applied, this herbicide can help control and protect your garden from weeds for up to 5 months. This product is a great weed and grass preventer for combatting weeds before they are even visible.

Wide variety of weeds And grasses - there are a lot of different broadleaf weeds and grasses that this product controls. This includes crabgrass, knotweed, chickweed, and more.