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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Fall Weed Prevention Starts Now - 10% Off Pre-Emergent Weed Control

$91.50
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A selective herbicide that gives pre- and post-emergence control.
10%
Off
Hi-Yield Atrazine Weed Killer RTS Quick View
2.5 out of 5 stars (7)
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$24.64
Was: $27.38
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A ready-to-use tough weed killer that contains 4% atrazine for both emerged weeds and weeds from seed.
10%
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Dimension 2EW Herbicide - 2.5 Gallon Quick View
4.5 out of 5 stars (61)
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$692.98
Was: $769.98
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Multiple sizes available
A professional specialty selective pre-emergent herbicide that controls grass and broad-leaf weeds for commercial and residential cool & warm-season grasses.
10%
Off
Prowl H2O Herbicide Quick View
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$212.40
Was: $236.00
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A selective pre-emergent herbicide that provides control of annual grasses and certain broad-leaf weeds for commercial crops.
10%
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Ike's Sandbur and Crabgrass Preventer Quick View
3.5 out of 5 stars (8)
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$37.78
Was: $41.98
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Multiple sizes available
A highly effective weed and grass preventer that targets and controls over 40 types of broadleaf weeds.
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Rezilon Pre Emergent Herbicide Quick View
5 out of 5 stars (1)
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$408.96
Was: $454.40
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A pre-emergent herbicide designed to protect desirable grasses while having superior control on unwanted grasses and broadleaf weeds.
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Monterey Vegetable & Ornamental Weeder Quick View
4.5 out of 5 stars (8)
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$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.
10%
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Hi-Yield Killzall 365 Quick View
4.5 out of 5 stars (10)
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$37.09
Was: $41.21
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Multiple sizes available
An active herbicide that eliminates and prevents weeds from growing and provides excellent vegetation control whole year-round.
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.
5 out of 5 stars (1)
$118.90
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A professional selective pre-emergent and post-emergent herbicide that controls herbaceous weeds and annual and perennial grasses.
5 out of 5 stars (1)
$113.23
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Multiple sizes available
A highly effective herbicide that provides long-lasting protection against weeds by gradually killing it within a few days.
10%
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Gallery SC Specialty Herbicide Quick View
5 out of 5 stars (4)
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$194.25
Was: $215.83
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Multiple sizes available
A professional pre-emergent herbicide that controls broad-leaf weeds in established areas for commercial turf-grass and ornamentals.
10%
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Drexel Simazine 4L Herbicide Quick View
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$110.68
Was: $122.98
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An effective herbicide that provides pre-emergent control of annual broadleaf weeds and grasses in agricultural and ornamental crops.
10%
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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.
10%
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Agrisel Pendi Hydrocap Pre-Emergent Herbicide Quick View
4 out of 5 stars (1)
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$25.44
Was: $28.27
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Multiple sizes available
A professional pre-emergent herbicide that controls over 50 types of weeds and grasses.
10%
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Prograss EC Herbicide Quick View
5 out of 5 stars (2)
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$580.98
Was: $645.53
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A professional selective pre-emergent and post-emergent herbicide that controls Poa annua in cool-season grasses, over-seeded bermudagrass, annual grasses and broad-leaf weeds.
10%
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Bonide Sedge Ender RTS Quick View
4 out of 5 stars (2)
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$34.18
Was: $37.98
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A ready-to-spray selective herbicide that provides pre and post-emergent control of goosegrass, nutgrass (and all sedges), crabgrass, foxtail, and other grassy type weeds.
5 out of 5 stars (1)
$43.05
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Multiple sizes available
A highly effective herbicide that provides long-lasting protection against weeds by gradually killing it within a few days.
10%
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Semera SC Herbicide Quick View
4 out of 5 stars (4)
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$57.98
Was: $64.42
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Multiple sizes available
An economic fast-acting herbicide that offers pre-emergence and post-emergence control on broadleaf weeds and grasses.
10%
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Semera SC Herbicide Quick View
4 out of 5 stars (4)
On Sale!
$57.98
Was: $64.42
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Multiple sizes available
An economic fast-acting herbicide that offers pre-emergence and post-emergence control on broadleaf weeds and grasses.
5 out of 5 stars (1)
$276.98
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Multiple sizes available
A highly effective herbicide that provides long-lasting protection against weeds by gradually killing it within a few days.
10%
Off
Bensumec 4LF Herbicide - 2.5 Gallon Quick View
5 out of 5 stars (2)
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$499.09
Was: $554.54
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Multiple sizes available
A professional selective pre-emergent herbicide that controls broad-leaf weeds in cool & warm-season turf for residential lawns and golf courses.
5 out of 5 stars (1)
$1,104.15
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Multiple sizes available
A professional selective pre-emergent herbicide that controls annual grasses, broad-leaf weeds, and sedges with a new active ingredient - dimethenamid-p (DMTA-P).
$240.58
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Multiple sizes available
Provides pre and post-emergent control of annual and perennial broadleaf weeds and grasses on noncropland sites.

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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