Barricade Granular Pre-emergent Herbicide
Barricade Pre-Emergent Herbicide Prodiamine Granular Barricade Pre-Emergent Herbicide Prodiamine Granular Barricade Pre-Emergent Herbicide Prodiamine Granular Barricade Pre-Emergent Herbicide Prodiamine Granular Barricade Pre-Emergent Herbicide Prodiamine Granular Barricade Granular Pre-emergent Herbicide Barricade Pre-Emergent Herbicide Prodiamine Granular

Barricade Pre-Emergent Herbicide Prodiamine Granular

NITRO-PHOS

Barricade Pre-Emergent Herbicide Prodiamine Granular

Barricade Herbicide is a flexible, granular pre-emergent herbicide that prevents a broad-spectrum of grassy and broadleaf weeds growing on various grass types and gardens.
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Barricade Granular Pre-Emergent Herbicide with Prodiamine, manufactured by Nitro-phos, is a professional pre-emergent herbicide that controls a broad-range of weeds and easily prevents unwanted foliage all season long. This granule pre-emergent herbicide contains prodiamine 0.58%, which stunts the growth of grassy and broadleaf weeds in established turfgrass, gardens, flowerbeds and many other non-crop growing areas.

This easy to use granule product works by preventing root growth and seed germination of target weeds. When applied, it will leave a barrier in the soil that will stop weeds from sprouting for effective pre-emergent weed control. Barricade Pre-Emergence Herbicide can be used in spring and fall to help you keep weed-free lawn throughout the year.

Barricade Granular Pre-Emergent Herbicide is a pre-emergent herbicide designed with small granule particles designed to readily break upon contact with water, providing superior performance and more coverage of treatment areas.

Tools Needed

To use Barricade Granular Pre-Emergence Herbicide, you will need either a rotary, drop, or hand spreader designed for use with fertilizers and granulated herbicides. We recommend using a push broadcast spreader for best results and larger treatment areas. Hand spreaders work well for small or ornamental bed applications.

How to Use

Load spreader at Barricade Herbicide

  • Step 1: Determine how much Barricade Granular Pre-Emergence Herbicide to use by measuring the square footage of the treatment area. You can do this by measuring the length and width of the treatment area in feet then multiplying them together (length X width = square footage). For acreage, take the square footage and divide it by one acre (square footage / 43,560 sq. ft. = acre). Depending on your turf species, you may be using anywhere from 1.5 to 4 pounds of Barricade Granular Pre-Emergence Herbicide per 1,000 sq. ft. For landscape ornamentals, the application rate will be between 2.5 and 5.94 lbs. of product per 1,000 sq. feet. For example, if you have perennial ryegrass on a 3,000 sq. ft. lawn, and the labeled rate for your turf is 2 lbs. per 1,000 sq. ft., you will need to load 6 lbs. of Barricade into your spreader to cover your entire yard.
  • Step 2: Now that you have determined how much Barricade Granular Pre-Emergent Herbicide you will need, calibrate your spreader to the right spreader setting for application and load the appropriate amount of granules into the spreader. This product label states spreader settings for various spreader types. If your spreader is not listed, you can set the spreader to the low to mid range for even distribution.
  • Step 3: Broadcast the Barricade Granular Pre-Emergent Herbicide uniformly using your spreader type. You may need to conduct 2 perpendicular passes to get uniform coverage. If any granules land on your driveway, sidewalk, or street, sweep the product back onto your lawn. Activate the granules by watering your lawn with at least 0.5 inches of water for best results.

Where to Use

spreading barricade

Barricade Granular Pre-Emergent Herbicide can be used on established residential and commercial lawns and ornamental turf, landscape ornamentals, and established perennials and wildflower plantings.

Do not apply to golf course putting greens, or areas where dichondra, colonial bentgrass, velvet bentgrass, or annual bluegrass (Poa annua) are desirable species. Not for use on plants being grown for sale or other commercial use, for commercial seed production, or for research purposes.

When to Use

Timing is key when applying pre-emergent products. If the weeds are already established, the product will not work. The best time to apply pre-emergent herbicides like Barricade Granular Pre-Emergent Herbicide is in both spring and fall. 

Apply only to actively growing turf. Do not apply if heavy rain is expected.

This product will inhibit germination of turf seed if overseeded too soon after application. Do not apply to overseeded turf within 60 days after seeding or until after the second mowing, whichever is longer.

Safety Information

Barricade Pre-Emergence Herbicide is safe to use around pets and children when applied according to the product label instructions. Always wear the proper personal protective equipment (PPE) when handling and applying this product.

Keep children and pets off the treated area until product has dried. Do not graze or feed livestock forage cut from treated areas.

Do not apply near water, storm drains, or drainage ditches.

Special Considerations

Barricade Pre-Emergence Herbicide will not kill established weeds. For that, you will need to use a post-emergent herbicide. Applying Barricade may thin emerged annual bluegrass and newly overseeded grasses, so make sure to wait at least 60 days after seeding to apply the product. Avoid cultural practices such as core aeration, as this will disturb the herbicide barrier and lead to reduced weed control.

When plants are under stress (such as heat, drought, or frost damage) some cultivars of listed plants may be sensitive to this product.

AvailabilityIn Stores, Online
Restricted UseNo
Shipping Restrictions50 Pound: AK, HI
10 Pound: AK, HI
BrandNITRO-PHOS
Keith's Pro Tips"If you see any of the Barricade Herbicide granules on the sidewalk or your driveway, be sure to sweep it back into the grass. Barricade can stain concrete surfaces. We also don't want the granules to be picked up and drained by flowing rain water."
Product DrawbacksBarricade Herbicide will not work against emerged weeds. You need to time applications prior to the germination of weed seed for best results.
Target PestsBarnyardgrass, Annual Bluegrass, Poa Annua, Carpetweed, Common Chickweed, Mouseear Chickweed, Large Crabgrass, Smooth Crabgrass, Crowfootgrass, Woolly Cupgrass, Annual Foxtails, Goosegrass, Henbit, Itchgrass, Johnsongrass, Junglerice, Knotweed, Kochia, Common Lambsquarter, Lovegrass, Texas Panicum, Fall Panicum, Browntop Panicum, Pigweed, Common Purslane, Florida Pusley, Rescuegrass, Sheperds purse, Signalgrass, Speedwell, Sprangletop, Prostrate Spurge, Witchgrass, and Yellow Woodsorrel.
Application EquipmentHand Spreader, Push Spreader
Application MethodsGranular Spreading
Active IngredientProdiamine .58%. Barricade 50 lbs. contains Prodiamine at .38%
Product TypeHerbicide
FormulationGranular
Application RateDepending on your turfgrass type, the minimum rate of Barricade Herbicide ranges between 1.5 pounds to 4 pounds per 1000 sq. ft. For the 50 lb. bag, application rates is 2.7 lbs. per 1000 sq. ft. or 118 lbs. per acre.
Shelf LifeBarricade Herbicide will last between 3 years when stored in a cool, dry locked storage area out of reach of children and domestic animals.
YieldDepending on your turf the application rate and yield of Barricade Pre-Emergent Herbicide Prodiamine Granular will vary. If used at the lowest application rate of 1.5 pounds per 1,000 square feet, a 10 lb. bag of Barricade Herbicide will treat approximately 6,666 sq. ft. For the 50 lb. size of this product the lowest application rate of 2.3 pounds per 1,000 will treat up to approximately 21,739 sq. ft.
Use SitesOutdoors
Time to KillBarricade Herbicide does not kill weeds, it stops weed seeds in the soil from germinating within 14 days of application.
Comparable ProductsProdiamine 65 WDG
Incompatible Grass Types Bentgrass
EPA Registration #32802-67-54343
4.4/5
Based on 70 reviews
  • 76%(53)
  • 9%(6)
  • 4%(3)
  • 3%(2)
  • 9%(6)
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Customer Photos
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100%
3/4/23
Wilson Wong
Verified Buyer
Quality products
Very good preemergence that contains a nice amount of potash.
20%
2/16/23
Trey H.
Verified Buyer
Does not work on Poa Aunna
If I could give it 0 stars I would. Put a 100 lb on a 0.3 acre lot 3 different times. Total of 6 bags. I live in north Alabama. Application mid August, again mid November, just now again mid February. Poa Aunna everywhere. Ton of time and money wasted.
80%
12/5/22
Paul Kleinen
Verified Buyer
Me+ Barricade vs weeds
I live in the north of Houston area and have a 1 ac St Augustine lawn. The law is under siege from white clover, knotweed, Carolina Geranium, Virginia buttonweed, yellow nutsedge, prostrate spurge and a few more (I have learned a lot about weed identification). It is as if having a green, weed free lawn is an unnatural act. I use Barricade for weed suppression twice a year and it works. My biggest challenge is timing the application so the herbicide is as effective as possible (i.e., not before a deluge of rain) and does not cause chlorosis. I also order online and appreciate the prompt delivery.
100%
10/27/22
darrell Hargis
Verified Buyer
Easy to apply. Cost effective. Works as well as more expensive products
100%
5/8/22
Roy Flores
Verified Buyer
Spotted spurge was all over my zoysia lawn and I applied Barricade Preemergence and it did not return this spring. I am very happy with result. However, I continue having a problem with clover and crabgrass, any suggestions to get rid of these two?
100%
5/2/22
Perry Furgason
Verified Buyer
Did great! I finally got rid of the darn Purslane!
I've been fighting Purslane for a lot of years. This Nitro-Phos Barricade Preemergent won this battle!
100%
10/30/21
Thomas Borok
Verified Buyer
will use it next Spring for broadleaf pre-emergence
From description this is what I need for my Spring pre-emergence broadleaf lawn application since I don’t use combination weed & feed mixture products, however since i won’t be using it until next Spring, I can’t say yet how well it works but from the description it would be the right item for me. More important, Service, Information, Options, and advice from Solutions Pest & Lawns was superb. I landed in the right place so thank you Solutions Pest & Lawns.
100%
9/21/21
Richard Placek
Verified Buyer
Solutions brand prodiamine
I have been using Solutions brand of prodiamine for several years. I have a 5 acre yard with zoysia and rebel fescue grass. Because I live in the mid-south we have a long growing season and sometimes a warm winter, so I use prodiamine twice a year. Excellent results. The neighbors say it looks like a golf course.
100%
9/1/21
Debbie Smith
Verified Buyer
I am going to use this product in the late fall way winter and spring.
100%
8/3/21
Linda M.
Verified Buyer
Pretty Yard!
I bought a home that hadn't had lawn care in a long time. I knew there would be a struggle to get this yard looking decent but with diligence, patience and Barricade 2 springs in a row I have a great looking yard now. Great product, everything they advertised and more!!
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More Information
Restricted Use No
Shipping Restrictions AK, HI
Availability In Stores, Online
Signal Word CAUTION
Keith's Pro Tip "If you see any of the Barricade Herbicide granules on the sidewalk or your driveway, be sure to sweep it back into the grass. Barricade can stain concrete surfaces. We also don't want the granules to be picked up and drained by flowing rain water."
Target Pests Multi Annual Bluegrass, Annual Foxtails, Barnyardgrass, Browntop Panicum, Carpetweed, Chickweed, Common Purslane, Crowfootgrass, Fall Panicum, Florida Pusley, Goosegrass, Henbit, Itchgrass, Johnsongrass, Junglerice, Knotweed, Kochia, Lambsquarters, Large Crabgrass, Lovegrasses, Mouseear Chickweed, Pigweed, Poa Annua, Prostrate Spurge, Rescuegrass, Shepherdspurse, Signalgrass, Smooth Crabgrass, Speedwell, Sprangletop, Texas Panicum, Witchgrass, Woolly Cupgrass, Yellow_Woodsorrel
Time to Kill Barricade Herbicide does not kill weeds, it stops weed seeds in the soil from germinating within 14 days of application.
Chemical Type Herbicide
Formulation Granular
Application Methods Granular Spreading
Product Drawbacks Barricade Herbicide will not work against emerged weeds. You need to time applications prior to the germination of weed seed for best results.
Active Ingredient Prodiamine .58%. Barricade 50 lbs. contains Prodiamine at .38%
Application Equipment Hand Spreader, Push Spreader
Mix Rate Depending on your turfgrass type, the minimum rate of Barricade Herbicide ranges between 1.5 pounds to 4 pounds per 1000 sq. ft. For the 50 lb. bag, application rates is 2.7 lbs. per 1000 sq. ft. or 118 lbs. per acre.
Low Use Rate 24 oz./1,000 sq. ft.
High Use Rate 96 oz./1,000 sq. ft.
Use Sites Outdoors
Yield Depending on your turf the application rate and yield of Barricade Pre-Emergent Herbicide Prodiamine Granular will vary. If used at the lowest application rate of 1.5 pounds per 1,000 square feet, a 10 lb. bag of Barricade Herbicide will treat approximately 6,666 sq. ft. For the 50 lb. size of this product the lowest application rate of 2.3 pounds per 1,000 will treat up to approximately 21,739 sq. ft.
EPA Registration No. 32802-67-54343
Shelf Life Barricade Herbicide will last between 3 years when stored in a cool, dry locked storage area out of reach of children and domestic animals.
Comparable Products Prodiamine 65 WDG
Children or pets? No
Property Characteristics None
Questions and Answers
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  1. Q:Barricade Pre Emergent granular was just put on our yard….the bag says harmful to humans and domestic animals….how long after treatment can you let dogs out in the yard? Is it OK after it rains?
    3/7/24
    A:Keep children and pets off the treated area until Barricade has dried. If it is light rain that meets the 0.5 inches of water after application requirement then it should be fine. But, if you are expecting heavy rainfalls for extended periods of time then its best to wait until these storms pass and the soil is dry before application.

    Amanda

    3/8/24
  2. Q:WHAT IS THE PERCENTAGE OF PRODIAMINE?
    3/4/24
    A:It is prodiamine 0.58%

    Amanda

    3/5/24
  3. Q:IS THIS EFFECTIVE ON BOTH TYPES OF SPURGE?
    3/4/24
    A:Of the different varieties of spurge, Barricade is labelled to control only prostrate spurge.

    Amanda

    3/5/24
  4. Q:I mis calculated my application rate. I put down 4.5 lbs per 1k on my cool season grass. Potential problems? Anything I can do?
    3/4/24
    A:Without knowing your specific cool-seasoned turf type its hard to say, but it should be fine since its within the application range. A higher than recommended application rate will usually achieve a longer residual with pre-emergent materials and would not be expected to cause any noticeable damage since these chemistries are designed to prevent weed seed germination only. They should not affect established plant materials.

    Amanda

    3/6/24
  5. Q:We want to stop dandelions, hensbit and crabgrass but we do not want to kill or impede the Bermuda grass. Will this impede the growth of Bermuda grass?
    3/3/24
    A:Barricade Pre-Emergent Herbicide Prodiamine Granular will control henbit and crabgrass, but not dandelions. Your bermudagrass will be fine as long its established and not newly sprigged or plugged .

    Amanda

    3/5/24
  6. Q:Will this product work as a pre-emergent herbicide on gravel drives?
    3/1/24
    A:It should. I would be careful though as it can cause some temporary yellow staining on light or dark surfaces if you have white or black rock.

    Sean G

    3/1/24
  7. Q:Is this product pollenator friendly or is it harmful to pollenators?
    2/29/24
    A:Prodiamine is considered non-toxic to pollinators.

    Zach

    2/29/24
  8. Q:I'd like to order Barricade Pre-emergent in addition to other products. Even in your FAQs I can only find that I need a certain amount depending on my grass type and to follow directions on the bag. Well I can't see the directions on the bag online! So how do I know how much to order? I have about 2800 sf of St. Augustine in N Houston TX, thank you
    2/28/24
    A:For St Augustine the label says 4-6lbs per 1000 sqft. For your particular sized yard i'd recommend you use 11-15 lbs.

    Tim

    2/28/24
  9. Q:Can this product be used in a yard with Texas Cedar Elms?
    2/27/24
    A:It can be used as long you do not allow the granules to touch the roots, shoots, or Texas Cedar Elm itself. Only use Barricade Pre-Emergent Herbicide Prodiamine Granular on the listed turf species and established planting sites.

    Amanda

    2/28/24
  10. Q:Is barricade harmful to Bermuda grass
    2/23/24
    A:Yes, Barricade works well with Bermudagrass. Keep in mind that for newly sprigged or plugged Bermudagrass, don't exceed an application rate of 2 lbs. per 1,000 sq.ft. as grass rooting may be temporarily halted. Otherwise apply according to the label and you will be good to go.

    Amanda

    2/23/24
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