Pre-Emergent Herbicides

If you know your lawn is prone to weeds in the spring and summer, pre-emergent weed control treatments will help stop weeds before they emerge. Pre-emergent herbicides, or weed preventers, form a barrier in the top inch or two of soil, preventing weeds from growing above the soil. This means less weeds to treat when the weather warms, keeping your lawn beautiful year round. 

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10% Off* Pre-Emergent Weed Control - Get A Weed-Free Lawn - Shop Now *Some Exclusions Apply

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Monterey Vegetable & Ornamental Weeder - Quart Quick View
4.5 out of 5 stars (8)
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$49.93
Was: $55.48
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Multiple sizes available
A selective pre-emergent herbicide that controls annual grasses and broad-leaf weeds in vegetables, flowers, trees and shrubs, and prevents weeds for up to 5 months.
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Prodiamine 4L Herbicide Quick View
5 out of 5 stars (1)
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$215.00
Was: $238.89
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A professional selective pre-emegent herbicide that controls grassy and broad-leaf weeds in cool & warm-season turf for golf courses, sod farms and tree plantations.
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RM43 43% Glyphosate Plus Weed Preventer Quick View
5 out of 5 stars (17)
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$42.00
Was: $46.67
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Multiple sizes available
An herbicide, combined with a surfactant, that provides total vegetation control for up to 1 year.
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Eraser Max Super Concentrate Herbicide Quick View
4.5 out of 5 stars (35)
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$37.12
Was: $41.24
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A non-selective pre & post-emergent herbicide for controlling grass, broad-leaf weeds, brush and vines up to one year.
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RM43 43% Glyphosate Plus Weed Preventer - 2.5 Gallon Quick View
5 out of 5 stars (17)
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$198.00
Was: $220.00
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Multiple sizes available
An herbicide, combined with a surfactant, that provides total vegetation control for up to 1 year.
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RM43 43% Glyphosate Plus Weed Preventer - 1 Gallon Quick View
5 out of 5 stars (17)
On Sale!
$102.18
Was: $113.53
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Multiple sizes available
An herbicide, combined with a surfactant, that provides total vegetation control for up to 1 year.
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Balan 2.5 G Herbicide Quick View
4.5 out of 5 stars (2)
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$64.00
Was: $71.11
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A professionally formulated granular pre-emergent herbicide to control annual weeds by destroying their seeds as they germinate.
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Monterey Vegetable & Ornamental Weeder Quick View
4.5 out of 5 stars (8)
On Sale!
$29.98
Was: $33.31
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Multiple sizes available
A selective pre-emergent herbicide that controls annual grasses and broad-leaf weeds in vegetables, flowers, trees and shrubs, and prevents weeds for up to 5 months.
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Off
Torocity Herbicide Gallon Quick View
5 out of 5 stars (8)
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$199.00
Was: $221.11
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Multiple sizes available
A selective herbicide that kills existing weeds and prevents new weeds before they can even start.
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The Anderson's Crabgrass Preventer with 2% Team Herbicide Quick View
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$58.34
Was: $64.82
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A selective pre-emergent herbicide that is specifically formulated for crabgrass and effectively controls weeds.
5 out of 5 stars (1)
$117.67
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A professional selective pre-emergent and post-emergent herbicide that controls herbaceous weeds and annual and perennial grasses.
4 out of 5 stars (1)
$88.87
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Multiple sizes available
A versatile herbicide that offers pre & post-emergent control of broadleaf weeds and delivers same-day results.
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Resolute 4FL Prodiamine Herbicide 2.5 Gallon Quick View
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$215.00
Was: $238.89
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Multiple sizes available
A professional selective pre-emergent herbicide that controls grasses and broad-leaf weeds in cool & warm-season turf for golf courses, sod and ornamental nurseries.
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Prime Source Meso 4SC Select Herbicide - Gallon Quick View
4 out of 5 stars (34)
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$201.60
Was: $224.00
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Multiple sizes available
A professional selective pre and post-emergent herbicide that controls broad-leaf and grassy weeds for commercial and residential turf-grass.
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Prime Source Flumioxazin 51 WDG Select Herbicide Quick View
5 out of 5 stars (2)
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$55.00
Was: $61.11
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Multiple sizes available
A specially formulated pre-and early post-emergent herbicide that provides broad-spectrum control on tough weeds and aquatic weeds.
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Ferti-lome Weed Out Pro Turf 25-0-4 Lawn Fertilizer 26 lb. bag Quick View
2.5 out of 5 stars (4)
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$73.80
Was: $82.00
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Multiple sizes available
A selective pre-emergent herbicide plus fertilizer Weed & Feed for Crabgrass and broad-leaf weeds on cool & warm-season grasses.
$66.30
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A professional selective pre & post-emergent herbicide that provides control of broad-leaf weeds and nutsedge in turf-grass, and other non-crop sites.
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Duracor Herbicide Quick View
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$144.43
Was: $160.48
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A specially formulated herbicide designed to provide extended control of 140 broadleaf weeds and woody plants in pastures.
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Espoma Organic Weed Preventer Lawn Food 9-0-0 Quick View
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$66.38
Was: $73.76
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An all-natural fertilizer that feeds your lawn while preventing unwanted weeds from growing.
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Hi-Yield Weed and Grass Stopper with Dimension Herbicide 9.6 lb. Quick View
4.5 out of 5 stars (116)
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$30.58
Was: $33.98
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Multiple sizes available
A pre-emergent and post-emergent herbicide for crabgrass and broad-leaf weeds in cool and warm-season grass and landscaping.
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Semera 51% WDG Herbicide Quick View
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$239.40
Was: $266.00
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A pre-emergent and post-emergent contact herbicide that controls selected grass and broadleaf weeds in non-crop areas and warm-season turfgrasses.
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Prime Source Flumioxazin 51 WDG Select Herbicide - 5 lb. Quick View
5 out of 5 stars (2)
On Sale!
$211.00
Was: $234.44
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Multiple sizes available
A specially formulated pre-and early post-emergent herbicide that provides broad-spectrum control on tough weeds and aquatic weeds.
4 out of 5 stars (1)
$197.98
Free Shipping!
Multiple sizes available
A versatile herbicide that offers pre & post-emergent control of broadleaf weeds and delivers same-day results.
10%
Off
OH2 Ornamental Herbicide Quick View
On Sale!
$199.00
Was: $221.11
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A professional granular pre-emergent herbicide that controls broad-leaf and grassy weeds for commercial ornamental production and landscaping.

Liquid Pre-emergents | Granular Pre-emergents | Wettable Powder Pre-emergents

Lawn Care Schedules & Maintenance Calendars

Cool Season Grasses | Warm Season Grasses

Pre-emergent herbicides are usually applied in the early growing season and help prevent target grass and broadleaf weed seeds from germinating as the weather begins to warm up in the Spring.  A pre-emergent herbicide, or weed preventer, will create a barrier around a seed, making it nearly impossible for the seed to sprout and the weed or grass to grow.

Pre-emergent weed control is typically applied twice a year, in the spring and in the fall, to help prevent weeds that germinate in the spring and fall. Learn more about Applying Spring Pre-Emergent Weed Control and Why You Should Be Using a Fall Pre-Emergent.

When applying pre-emergents, be careful to aerate first, and not after applying the products.  Aeration can break the seal over the ground and around the seeds which makes the pre-emergents less effective.  In some areas, you may need to do a split application of pre-emergent weed preventers – meaning you’ll apply your pre-emergents early in the season (spring or fall), then aerate, then do a second application of pre-emergent weed preventer 6 to 8 weeks later to get season long control.  For best results, this shoudl be in both the spring and in the fall. 

Pre-emergent herbicides can be applied using a granular spreader or a pressurized handheld sprayer. Most liquid weed prevention herbicides come as concentrated solutions that need to be mixed with water first (according to the label) before application. Weed preventers also come in a water dispersible granular formation, or wettable granules, which need to be mixed and dissolved in water to apply as a spray to your lawn.  Granular herbicides for weed prevention can be spread using a granular spreader and may require irrigation in order to help the granule release the pre-emergent chemical.

 

Be sure to check out our full Do My Own Lawn Care Video Series.

Spring Pre-Emergents Application Video | Fall Pre-emergents Application Video

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