Barricade 65WG Herbicide

Barricade 65WG Herbicide

Product Features

  • Prevents more than 30 weeds
  • Water-dispersible granule formulation
  • Controls crabgrass, goosegrass, poa annua, chickweed, spurge, purslane and more

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Product Overview

Barricade 65WG is a pre-emergent herbicide that provides long-lasting weed control in lawns, turfgrasses, and sod nurseries. Barricade 65 WG contains the active ingredient Prodiamine which is safe to use on some type of grasses without having any harmful effects. This weed preventer controls over 30 broadleaf and grassy weeds including goosegrass, crabgrass, carpetweed, and bluegrass by inhibiting its growth.

Syngenta Barricade 65WG is specially formulated in a wettable granule for easy and convenient tank mixing with other products. Ideal to use on established turfgrasses and lawns, conifer and hardwood seedling nurseries, field-grown, landscape, and container ornamentals, and non-crop areas like rights-of-way. Proven to leave no stain on fences, landscapes, or shoes when applied. May also be applied over the top of plants and in plant beds. 

Barricade 65WDG has recently transitioned to a 5 lb jug instead of a 5 lb bag.  Same great product, just new and improved packaging!  

Features and Specs

Active Ingredient Prodiamine - 65.0 %
Target pests Barnyardgrass, Bluegrass, annual, Carpetweed, Chickweed, crabgrass, Cup grass, Goosegrass, Henbit, Itchgrass, Johnsongrass, Junglerice, Knotweed, Kochia, Lambsquarters, Lovegrass, Panicum, Pigweed, Poa annua, Purslane, Speedwell.
For use in Turfgrasses, lawns, and sod nurseries, container, field-grown, and landscape ornamentals, Conifer, and hardwood seedling nurseries, perennials, and wildflower plantings, Non-crop areas, Facilities, and ungrazed fence rows and Christmas tree farms.
Application Mix in a spray tank and maintain vigorous agitation in the spray tank before and during the application. This will ensure a well-mixed spray suspension.
Pet safe Yes, if used as directed on label.
Formulation Water Dispersible Granule.
NOT FOR SALE TO NY (Restricted To Licensed Applicators Only)
Special Features Formulated as a flowable and water-dispersible granule.
Shipping Weight 5.41 lbs
Manufacturer Syngenta (Mfg. Number: 51637)
EPA Registration 100-834



It is a violation of Federal law to use this product in a manner inconsistent with its labeling.

Do not apply this product in a way that will contact workers or other persons, either directly or through drift. Only protected handlers may be in the area during application. For any requirements specific to your State or Tribe, consult the agency responsible for pesticide regulation.


Barricade 65WG is a preemergence herbicide that provides residual control of many grass and broadleaf weeds in:

  • Established turfgrasses (excluding golf course putting greens), lawns and sod nurseries
  • Container, field-grown, and landscape ornamentals
  • Conifer and hardwood seedling nurseries
  • Established perennials and wildflower plantings
  • Non-crop areas, including plantings on managed rights-of-way for transportation systems and utilities (including, roadways, roadsides, railways and equipment yards)
  • Facilities including substations, tank farms, pumping stations, parking and storage areas, and ungrazed fence rows
  • Christmas tree farms


Barricade 65WG controls susceptible weeds by preventing growth and development of newly germinated weed seeds. Weed control is most effective when Barricade 65WG is activated by at least 0.5 inches of rainfall or irrigation or shallow incorporation (1 to 2 inches) before weed seeds germinate and within 14 days following application.



Barricade 65WG must be mixed thoroughly in the spray tank to ensure uniform application. Follow these steps:

  1. Fill the spray tank 1/4 full with clean water or fluid fertilizer only.
  2. Start agitation and check to ensure it is working properly.
  3. Add Barricade 65WG directly into the tank.
  4. Add the rest of the carrier to obtain the final spray volume.
  5. A spray colorant may be used with Barricade 65WG to mark areas as they are treated. This will improve application accuracy by minimizing swath skips and overlaps.
  6. Maintain vigorous agitation in the spray tank before and during the application. This will ensure a well-mixed spray suspension.
  7. Do not allow spray suspension to dry in the tank. Thoroughly clean the sprayer after use by flushing the system with water containing a detergent. Refer to the Pesticide Disposal section of this label for waste disposal.


Barricade 65WG may be tank mixed with certain other EPA-registered herbicides to provide a broader spectrum of weed control or to control emerged weeds. Refer to the specific directions for use for tank mix partners, and consult the label(s) of the individual tank mix partner(s) for use rate, application timing, weeds controlled, and specific precautions and/or restrictions. Tank mixes are permitted only in states where the tank mix partner(s) are registered for the application site and the turf and ornamental species listed. When using Barricade 65WG in a tank mixture with other pesticides, observe the most restrictive label limitations and precautions on the labels of the products used.

Before tank mixing with other pesticides not named on this label compatibility must be tested.

Notes: (1) When mixing Barricade 65WG with other components (carrier and partner pesticide products), allow products to completely dissolve between steps. This is key when tank mixing with ester formulations. (2) Maintain agitation throughout the mixing and application of the mixture.

Add the products to the spray tank in the following order:

  1. Add products packaged in water-soluble bags first. Agitate the tank mixture. Allow the water-soluble bags to completely dissolve and the product to disperse before adding any other tank mix partner.
  2. Then add water-dispersible granules (WDG or WG formulations) and wettable powders (WP formulations). Add wettable powders to the tank as agitation continues. Allow the product to disperse completely before other products are added.
  3. Add spray adjuvants and spray markers. Read the adjuvant’s label first and use only those adjuvants approved for application to turf and ornamentals.
  4. Add flowable liquids (FL) or suspension concentrates (SC).
  5. Add emulsifiable concentrates (EC) last.


Apply Barricade 65WG in a minimum of 20 gals./A (0.5 gal./1,000 sq. ft.) of the carrier (water and/or fluid fertilizer) using a calibrated, low-pressure sprayer with 50-mesh or coarser screens. A broadcast boom or handheld wand designed for herbicide or insecticide application will provide the best results. Select nozzle pressure and gallonage to provide complete coverage.



Barricade 65WG is a preemergence herbicide that, when properly applied, will control certain grass and broadleaf weeds listed on this label in established turfgrasses including:

  • Golf courses excluding putting greens
  • Lawns
  • Sod nurseries

The maximum amount of Barricade 65WG that may be applied per year is given for each turfgrass species in the Annual Use Rates – Turfgrass section of this label.

For optimum weed control, Barricade 65WG should be activated by at least 0.5 inches of rainfall or irrigation before weed seeds germinate and within 14 days following application. See the map below for approximate crabgrass seed germination dates.

Weeds Controlled (Turf, Ornamentals)

When used as directed in this label, Barricade 65WG will control the following weeds:

  • Barnyardgrass
  • Bluegrass, Annual (Poa annua)
  • Carpetweed 
  • Chickweed, Common
  • Chickweed, Mouseear (from seed) 
  • Crabgrass (Large, Smooth)
  • Crowfootgrass
  • Cupgrass, Woolly
  • Foxtails, Annual 
  • Goosegrass
  • Henbit
  • Itchgrass 
  • Johnsongrass (from seed) 
  • Junglerice 
  • Knotweed
  • Kochia
  • Lambsquarter, Common
  • Lovegrass
  • Panicum (Texas, Fall, Browntop)
  • Pigweed
  • Purslane, Common
  • Pusley, Florida
  • Rescuegrass
  • Shepherd’s-purse
  • Signalgrass, Broadleaf
  • Speedwell, Persian
  • Sprangletop
  • Spurge, Prostrate
  • Witchgrass
  • Woodsorrel, Yellow (from seed)

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