Top 10 Preemergent Weed Control for Lawns Organic – Weed Killers

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1. Bonide

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Crabgrass and Weed Preventer, Dura Turf Crab-Grass Pre-Emergent Control for Lawn and Ornamental Garden Beds 9.5 lb., Bonide BND60400

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Bonide #ad - Crabgrass and other weed killer - this weed killer and prevention technique can help clear out, or suppress over twenty different weeds. For use on lawns and gardens. This includes foxtail, goosegrass, spurge, chickweed, barnyard grass, control, annual bluegrass, and more.

It can be applied up to 4 weeks later than other crabgrass preventers and provides up to four months of crabgrass control. Preemergent weed control - apply this product to lawns or gardens in the spring, and it will keep weeds and crabgrass out for the whole season. Ready to use - bonide weed preventer is ready to use, and it is easy to apply. For lawn and ornamental use - use this product on lawns or ornamentals as directed on the bag for the best results.

Apply the granular product to the ground as directed by the label. Do not apply this to fruit or vegetable plants, and do not allow people or pets to enter the treated area until dust has settled. Covers up to 5, 000 square feet - this bag can treat up to 5, 000 square feet of turfgrass. Covers up to 5000 square feet. Does not contain fertilizer. It can be used on cool-season and warm-season turfgrass. Ready to use.
BrandBonide #ad
ManufacturerArett Sales - LG #ad
Height15 Inches
Length14.8 Inches
Weight9.5 Pounds
Width3.7 Inches
Part Number60400
ModelBND60400

2. Bonide

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Weed Killer Granules for Lawn and Garden, Post and Pre Emergence Application 10 lb., Bonide BND60476, Weed Beater Complete

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Bonide #ad - It can kill the toughest weeds with systemic action from the leaves all the way down to the root. Pre and post formula - the formula for Weed Beater Complete takes care of pre-emerging and post-emerging control of both grassy and broadleaf weeds.

Granular application - unlike most weed killer concentrate formulas, this product is a dry-application granule that can be used on warm and cool season grasses, and it will work equally well on both. 5, you can protect up to 5, 200 square feet of protection - with just 10 pounds of Weed Beater Complete, 200 square feet of your property. Ready to use - this product is conveniently ready to use when it arrives. Apply exactly as directed on the label for the best results. Wide range of control - this product gets rid of crabgrass, goosegrass, nutsedge, ground ivy, and way more.
BrandBonide #ad
ManufacturerArett Sales - LG #ad
Height15.5 Inches
Length14.5 Inches
Weight3.5 Pounds
Width4.5 Inches
Part Number60479
ModelBND60476

3. Espoma

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Espoma Weed Preventer Plus Lawn Food, 25 lb, Natural Lawn Food, & Other Weeds, Prevents Dandelions, Crabgrass

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Espoma #ad - Weed preventer prevents dandelions, and other common weeds, crabgrass, and provides long lasting greening that won't burn. For use on established lawns only. Espoma weed preventer is an all natural weed preventer and lawn food made from pure corn gluten meal. Do not use when seeding a new lawn or over-seeding. Children and pets can play on lawn immediately after application! Application: apply 2 times per year: Early Spring before weed seeds germinate, and Early Fall.
BrandEspoma #ad
ManufacturerEspoma #ad
Height1 Inches
Length1 Inches
Weight25 Pounds
Width1 Inches
Part NumberCGP25
ModelCGP25

4. Scotts

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Crabgrass Preventer, Oxalis, Foxtail & More All Season Long, Treats up to 5,000 sq. ft., Pre-Emergent Weed Control for Lawns, 10 lb., Prevents Chickweed, Scotts WeedEx Prevent with Halts

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Scotts #ad - Effective pre-emergent control of crabgrass, spurge, foxtail, oxalis, and other grassy and broadleaf weeds. Apply in early spring for season-long prevention of crabgrass, Fall application prevents winter weeds such as poa annua, henbit and chickweed. Use on all lawn and grass types except dichondra or bentgrass. Stops crabgrass before it starts. Scotts weedex prevent with Halts prevents crabgrass all season long.
BrandScotts #ad
ManufacturerScotts Miracle Gro #ad
Height3 Inches
Length15 Inches
Width10 Inches
Part Number49024
ModelN/A

5. The Andersons

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The Andersons Barricade Professional-Grade Granular Pre-Emergent Weed Control, Covers up to 5,800 sq ft 18 lb

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The Andersons #ad - Trusted by top turf care professionals to prevent problem weeds without harming desirable plants. Contains 048% of the active ingredient prodiamine - Labeled to prevent over 30 grass and broadleaf weeds. Barricade professional-grade pre-emergent weed control is designed to prevent weeds, and will not aid in eliminating existing weeds. Dg pro formulation allows for more particles per square inch of chemical - leads to better control of weeds. Apply this product only in EARLY SPRING and FALL.
BrandThe Andersons #ad
ManufacturerThe Andersons #ad

6. Preen

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10 lb. -Covers 1,630 sq. ft, Preen 2464221 Extended Control Weed Preventer

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Preen #ad - 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. 10 lbs. Covers 1, 630 sq. Can be sold as a refill for flip-top applicator. 1 application blocks weeds up to 6 months guaranteed. Not intended for use on flower seeds, lawns, vegetable gardens, water gardens or other food-producing or edible plants. Ft. Not available for sale in NY.
BrandPreen #ad
ManufacturerLebanon Seaboard Corporation #ad
Height6 Inches
Length20 Inches
Weight10 Pounds
Width12 Inches
Part Number2464221
Model2464221
WarrantyTo the extent consistent with applicable law, Lebanon Seaboard Corporation guarantees you will be satisfied with the performance of this product when used as directed, or your money back. If not satisfied, describe the nature of your problem, and send with proof of purchase to Lebanon Seaboard Corporation, 1600 E. Cumberland St., Lebanon, PA 17042.

7. Scotts

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Crabgrass Preventer, 20.12 lb., Treats up to 10,000 sq. ft., Pre Emergent Weed Control for Lawns, Prevents Chickweed & More, Scotts Halts Crabgrass & Grassy Weed Preventer

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Scotts #ad - Apply in spring to prevent crabgrass and problem weeds all season long. Fall application prevents winter weeds, such as poa annua, henbit and chickweed. Apply in fall to prevent moss. One application prevents crabgrass all season long. Rain, snow or freezing weather after application won't affect product performance.
BrandScotts #ad
ManufacturerScotts Miracle-Gro #ad
Height3.5 Inches
Length17.5 Inches
Width11 Inches
Part Number49915
Model49915

8. The Andersons

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The Andersons Barricade 50 lb Bag

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The Andersons #ad - Contains 048% of the active ingredient prodiamine - Labeled to prevent over 30 grass and broadleaf weeds. Apply this product only in EARLY SPRING and FALL. Dg pro formulation allows for more particles per square inch of chemical - leads to better control of weeds. Trusted by top turf care professionals to prevent problem weeds without harming desirable plants. Barricade professional-grade pre-emergent weed control is designed to prevent weeds, and will not aid in eliminating existing weeds.
BrandThe Andersons #ad
ManufacturerThe Andersons #ad
Part Number83013967

9. Scotts

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Scotts Turf Builder WinterGuard Fall Weed & Feed 3: Covers up to 5,000 sq. ft., Fertilizer, Not Available in FL, 14 lbs.

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Scotts #ad - Weedgrip technology grips the weeds you see—and the ones you don't. Clears out dandelions and clover—satisfaction guaranteed. Feeds to build strong, deep roots for a better lawn next spring. Improves lawn's ability to absorb water and nutrients versus an unfed lawn. Improved formula—up to 2X more powerful dandelion and clover control.
BrandScotts #ad
ManufacturerScotts #ad
Height12 Inches
Length18 Inches
Weight14.29 Pounds
Width3 Inches
Part Number50250
Model50250

10. Quali-Pro

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Quali-Pro Prodiamine, Pre-Emergent Herbicide, Yellow Granules, 5 lbs

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Quali-Pro #ad - Available in a 5 pound bottle. Active ingredient: Prodiamine 65%. Effective against: annual bluegrass Poa annua, Foxtail, Spurge, Henbit, Chickweed, Knotweed, Goosegrass. Use sites: nurse, Landscape, Trees, turf, Golf Courses. Flexible application allows for both spring and fall use providing season long crabgrass control. Pre-emergent herbicide: quali-pro's prodiamine 65 wdG provides pre-emergent grass and broadleaf weed control. Features & benefits: Excellent tank mix partner with fertilizers and iron solutions.
BrandQuali-Pro #ad
ManufacturerControl Solutions Inc. #ad
Height10.5 Inches
Length4.7 Inches
Weight5 Pounds
Width6.95 Inches
Part NumberQuali-Pro
Model2495