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Barricade 4FL Pre-Emergent Herbicide (Prodiamine) - Questions & Answers

Learn more about Barricade 4FL Pre-Emergent Herbicide (Prodiamine)

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Barricade 4FL Pre-Emergent Herbicide (Prodiamine)
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Displaying 61 to 71 (of 71 questions)
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  • Asked by Mark
    03/20/2022
    Q
    Does Barricade 4FL Pre-Emergent Herbicide (Prodiamine) have better tank suspension than the Prodiamine 65 WDG?
    Since this is a liquid, does it suspend better in the tank than the 65 WDG? I use a 9-gallon push sprayer and want something that doesn't need constant agitation.
    A

    Barricade 4FL Pre-Emergent Herbicide (Prodiamine) is a flowable liquid so does stay suspended in liquid better than the Prodiamine 65 WDG which is water dispersible granules which do not actually dissolve.  

    You should still agitate the sprayer during application for consistent suspension while applying. 

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  • Asked by Skippy from Arlington,texas
    03/19/2022
    Q
    Can Barricade 4FL Pre-Emergent Herbicide (Prodiamine) be used with a hose end sprayer and with what setting?
    A

    A hose end sprayer is not recommended for applying Barricade 4FL Pre-Emergent Herbicide (Prodiamine) as this type of sprayer is hard to regulate the water volume being used. Herbicides are much different than other chemicals because water just acts as the carrier and each applicator may use a different volume of water for their treatment areas.

    The product label states to apply 0.23 - 1.1 oz per 1,000 sq ft in a sufficient water volume to cover each 1000 sq ft area depending on your type fo turfgrass. 

    Please read the product label to determine the exact usage rate for your needs as it varies according to the species of grass you have and view our How to Calibrate Your Sprayer Video for a demonstration if needed. 
     
     

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  • Asked by John from Marshfield, Ma
    03/15/2022
    Q
    Can Barricade be applied with an Ortho Dial'N Spray Hose-End Sprayer? How many ounces per 1,000 sq.ft.?
    A

    It is not recommended to apply herbicides such as Barricade 4FL Pre-Emergent Herbicide (Prodiamine) with hose-end sprayers like the Ortho Dial N Spray Hose End Sprayer, as they do not necessarily distribute an accurate rate of product.  

    It is recommended to use a Hand Pump Sprayer or a Backpack Sprayer for herbicide applications, in order to ensure proper use rates.  

    Please refer to page 13 of the manufacturer's product label for rates specific to your grass type, and use as directed.

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  • Asked by Yel from 20175
    08/02/2022
    Q
    How much Barricade 4FL Pre-Emergent Herbicide (Prodiamine) is used in a hose end sprayer? What setting?
    A

    We would not recommend using Barricade 4FL Pre-Emergent Herbicide (Prodiamine) in a hose-end sprayer as it is difficult to get the proper coverage and water volume needed and proper mix ratio. 

    It is recommended to use pressurized handpump sprayers, backpack sprayers or large capacity sprayers to ensure you are getting the best even coverage using a sufficient volume of water to evenly apply the product at the recommended rate per 1000 sq ft. Please view the product label for application rates and more information. 

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  • Asked by Jose from Naples, Fl
    02/08/2023
    Q
    Does Barricade 4FL help prevent Bermuda grass growing on St. Augustine grass?
    A

    Barricade 4L would not prevent bermuda nor any other turfgrass from growing in a St Augustine grass lawn and there is product that will.


     
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  • Asked by Don from Clovis Californ
    02/12/2023
    Q
    Does Barricade 4FL kill normal grass on application?
    Well it kill regular grass or just the weeeds
    A

    Barricade 4FL Pre-Emergent Herbicide does not kill weeds or grasses. It will only keep the weeds listed  on the label from germinating and is safe for the listed turfgrasses. Please see the label for a full list of targeted weeds and full application instructions. 

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  • Asked by Holly from Liberty, Sc
    02/17/2022
    Q
    How long after applying Barricade 4FL Pre-Emergent Herbicide (Prodiamine) can you plant grass seed?
    A

    You need to wait at least four months after applying Barricade 4FL Pre-Emergent Herbicide (Prodiamine) before you can put down new sod.

    Refer to the chart on page 15 of the product label indicating minimum wait times depending on your location, the rate it was applied and what turgrass type you will be seeding. 

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  • Asked by Justin from Tn
    02/12/2022
    Q
    Can Barricade 4FL Pre-Emergent Herbicide (Prodiamine) be used safely around White Pine or Virginia Pine Christmas trees?
    A

    Eastern White Pine and Virginia Pine are both labeled to be tolerant to using Barricade 4FL. Please refer to the product label for more information. 

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  • Asked by Paul from Delaware
    03/27/2023
    Q
    Spraying Gravel Area
    Even with weed block some weeds get thru so we are interested in purchasing this to spray our large gravel areas. We will be using a sprayer that covers 470sq ft per gallon. Since all the mixture instructions relate to spraying on grass what would the mixture be to spray on gravel. Also since there is grass and bushes around the gravel how far away should we stop spraying so not to damage the grass and bushes. Thank You
    A
    Barricade 4FL Pre-Emergent Herbicide (Prodiamine) is safe around most established turf and ornamentals, just stay outside of the root zone of the desirable plants/grass. When spraying the gravel, you'll really need to water it in after spraying to work it down through the gravel and into the soil. As for mix rates, if there are ornamentals nearby, then I would use that rate. Be sure not to get spray where they may plant annuals.
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  • Asked by Tom from Sparta, Nj
    03/27/2023
    Q
    Can I use barricade on my paver deck around the pool.
    I have a paver dtonepol deck with sand in between the pavers. I will this product work to prevent weeds from growing in the cracks.
    A
    Yes, you can use a pre-emergent such as Barricade 4FL between the pavers and surrounding areas to prevent the listed weeds on the label from emerging.
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  • Asked by Enjoys from Madison, Wi
    04/02/2023
    Q
    Does Barricade 4FL negatively affect birds or insects such as butterflies?
    I want to use this product in my yard but do not want to hurt the wildlife I have in my yard and surroundings.
    A

    When used as directed, and not touched when wet, Barricade is usually safe around wildlife. We do encourage anyone with this concern to review the SDS in its entirety but I have pasted the part ecological information from page 6 below for you to review. 
     
    ECOLOGICAL INFORMATION 
    Environmental Fate Eco-Acute Toxicity 
    The information presented here is for the active ingredient, prodiamine. 
    Fish (Bluegill Sunfish) 96-hour LC50 > 552 ppb 
    Invertebrate (Water Flea) Daphnia Magna 48-hour EC50 > 83 ppb 
    Bird (Bobwhite Quail) 14-day LD50 > 2250 mg/kg
     
    Does not bioaccumulate. Persistent in soil. Stable in water. Immobile in soil. Sinks in water (after 24 h). 

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Displaying 61 to 71 (of 71 questions)