Prodiamine 65 WDG Pre-Emergent (Brand Alternative - Barricade) | 5 lb | Herbicide

Prodiamine 65 WDG Pre-Emergent Herbicide | Generic Barricade for Crabgrass and Poa Annua Prevention

Stop crabgrass and other weeds before they start with Prodiamine 65 WDG, a professional-grade pre-emergent herbicide and generic alternative to Barricade®. This water-dispersible granule contains 65% prodiamine and mixes with water to create a liquid spray for even, accurate coverage with a pump or battery-powered sprayer.

Prodiamine 65 WDG prevents crabgrass, annual bluegrass (Poa annua), bittercress, chickweed, henbit, and other labeled weeds from germinating. When applied as soil temperatures reach 55–70°F in spring or fall, it provides about 3 months of pre-emergent protection. One 5 lb bottle covers 4–5 acres, depending on mix rates, making it one of the most economical pre-emergents available for DIY lawn care.

Product Label & Specs

Key Benefits

• Prevents crabgrass before it germinates
  
• Controls annual bluegrass (Poa annua), bittercress, chickweed, henbit, and other labeled weeds
  
• Contains 65% prodiamine (active ingredient)
  
• Generic formulation of Barricade® pre-emergent
  
• Provides about 3 months of pre-emergent protection per application
  
• Water-dispersible granule (WDG) mixes with water for liquid application
  
• One 5 lb bottle covers 4–5 acres, depending on mix rates
  
• Can be used on cool-season and warm-season lawns
  
• Suitable for established lawns

How Prodiamine Stops Crabgrass

Crabgrass is an annual grassy weed. It germinates in spring, grows large and lime green through the summer, and drops seeds in late fall. The following spring, those seeds start the cycle again.
Prodiamine works as a pre-emergent barrier in the soil, stopping crabgrass and other labeled weed seeds from successfully germinating. Applying it at the right time, before weeds sprout, is the key to breaking the cycle.

When to Apply Prodiamine

The best time to apply Prodiamine is in spring or fall, when soil temperatures are between 55°F and 70°F. For crabgrass control on both cool-season and warm-season lawns, we recommend two applications in spring.

The free Yard Mastery app will tell you when your soil temperatures reach these milestones. For more details, see our free Pre-Emergent Guide.

Target Weeds

• Prodiamine 65 WDG helps prevent a variety of weeds, including:
• Crabgrass (large and smooth)
• Annual bluegrass (Poa annua)
• Goosegrass
  
• Annual foxtails
  
• Barnyardgrass
  
• Broadleaf signalgrass
  
• Common chickweed
  
• Henbit
  
• Prostrate spurge
  
• Yellow woodsorrel (from seed)
  
• Knotweed
  
• Other weeds listed on the product label

Approved Turf Types

Prodiamine 65 WDG can be used on established cool-season and warm-season turfgrasses:

• Cool-season lawns: Kentucky bluegrass, perennial ryegrass, tall fescue, and fine fescue
  
• Warm-season lawns: Bermudagrass, bahiagrass, centipedegrass, St. Augustinegrass, and zoysiagrass
  

Application Rates and Coverage

Always use the application rate and coverage information listed on the current product label, and don’t exceed the label’s yearly maximum for your grass type. We recommend weighing Prodiamine in grams for the most accurate rate (1 oz = 28.35 grams).

Kentucky bluegrass and perennial ryegrass:

• Early spring: 5.2 g per 1,000 sq ft
  
• Mid spring: 5.2 g per 1,000 sq ft
  
• Early fall (if not seeding): 5.2 g per 1,000 sq ft
  
• Yearly total: 15.6 g per 1,000 sq ft
  
• One 5 lb bottle covers up to 145,385 sq ft for a full year of applications

Fine fescue:

• Yearly total: 11.9 g per 1,000 sq ft
  
• One 5 lb bottle covers up to 190,588 sq ft for a full year of applications
  

Bermudagrass, bahiagrass, centipedegrass, St. Augustinegrass, tall fescue, and zoysiagrass:

• Early spring: 5.2 g per 1,000 sq ft
  
• Mid-spring: 5.2 g per 1,000 sq ft
  
• Early fall: 13 g per 1,000 sq ft
  
• Yearly total: 23.4 g per 1,000 sq ft
  
• One 5 lb bottle covers up to 96,923 sq ft for a full year of applications

Application Information

• Do not use Prodiamine if you are seeding or reseeding; it will prevent grass seed from germinating
  
• Weigh the product in grams on a scale for the most accurate application
  Fill your sprayer ¼ full with water, add the measured product, then add the rest of the water while agitating
  
• Mix in at least ½ gallon of water per 1,000 sq ft
  
• Spray evenly with a pump sprayer or battery-powered sprayer, and keep the mix agitated while spraying
  
• Do not apply with a hose-end sprayer
  
• Water in with at least ½" of irrigation or rainfall within 48 hours
  
• Always read the product label and follow its safety equipment recommendations