SKU: 17678211878
prefar 4e herbicide

prefar 4e herbicide Quali-Pro® Prodiamine 4L Pre-Emergent Herbicide

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Description

prefar 4e herbicide Quali-Pro® Prodiamine 4L Pre-Emergent HerbicideQuali Pro Prodiamine 4L is a professional grade liquid pre emergent herbicide designed to provide season long control of many annual grassy and broadleaf weeds. Formulated with 40. 8% prodiamine, this flowable concentrate helps prevent weeds from establishing by stopping newly germinating seeds before they develop. Ideal for use on established turfgrass, lawns, ornamentals, sod farms, and Christmas tree farms, Prodiamine 4L helps control problem weeds

Quali-Pro® Prodiamine 4L is a professional-grade liquid pre-emergent herbicide designed to provide season-long control of many annual grassy and broadleaf weeds. Formulated with 40.8% prodiamine, this flowable concentrate helps prevent weeds from establishing by stopping newly germinating seeds before they develop.

Ideal for use on established turfgrass, lawns, ornamentals, sod farms, and Christmas tree farms, Prodiamine 4L helps control problem weeds such as crabgrass, annual bluegrass, chickweed, henbit, knotweed, foxtail, and spurge. Its low solubility and low volatility allow it to remain in the weed germination zone for extended protection. This formulation provides reliable performance with low use rates and a low-staining formulation.

Product Details

  • Professional liquid pre-emergent herbicide for turf and ornamental areas

  • Contains 40.8% prodiamine (4 lb per gallon)

  • Provides season-long control of many grassy and broadleaf weeds

  • Controls weeds such as crabgrass, Poa annua, chickweed, henbit, foxtail, spurge, and knotweed

  • Low solubility and volatility help keep the product in the weed germination zone

  • Low-staining formulation

  • Suitable for lawns, landscape ornamentals, sod farms, and Christmas tree farms

  • Economical alternative comparable to Barricade® 4L

How It Works

Prodiamine 4L works as a pre-emergent herbicide by inhibiting cell division in newly germinating weed seeds. This prevents weeds from establishing in treated areas.

For effective activation, approximately 0.5 inches of rainfall or irrigation is required after application to move the product into the soil where weed seeds germinate.

Application Information

  • Mixing Rate: 0.3 – 1.1 oz per 1,000 sq. ft.

  • Apply using a low-pressure sprayer

  • Minimum spray volume: 20 gallons per acre (0.5 gallons per 1,000 sq. ft.)

  • May be tank mixed with other labeled herbicides (see label for details)

Target Weeds

Controls many grassy and broadleaf weeds, including:

  • Crabgrass

  • Annual bluegrass (Poa annua)

  • Foxtail

  • Knotweed

  • Chickweed

  • Henbit

  • Spurge

  • Additional weeds listed on the product label

Specifications

Active Ingredient: Prodiamine 40.8%
Formulation: Liquid (flowable concentrate)
Container Size: 2.5 Gallon
Manufacturer: Control Solutions
Use Sites: Established turfgrass, lawns, sod nurseries, ornamentals, and Christmas tree farms
Restrictions: Not for use on golf course putting greens

Important Use Information

Do not graze or feed livestock forage from treated areas. Do not apply to plants intended for food use. Do not apply aerially or through irrigation systems unless specified on the label. Do not apply to golf course putting greens. Always follow all directions, restrictions, and precautions listed on the product label.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 17678211878

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Ladetra Green
San Leandro, US
★★★★★ 5
Gentle, yet very effective
Style: Blemish Clearing Toner, Size: 12 Fl Oz (Pack of 1)
I've used multiple exfoliating toners in the past but none were as effective as this one. I have been using it for 3 days now along with the La Roche-Posay Toleriane Purifying Foaming cleanser and it's cleared the whiteheads on my chin quite a bit and made my face feel and look smooth. Will continue to repurchase.
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Reviewed in the United States on May 4, 2026
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Katie W
Omaha, US
★★★★★ 5
Finally Something That Works For Me
Style: Blemish Clearing Toner, Size: 12 Fl Oz (Pack of 1)
Imma be honest - I haven’t had great skin for over 30 years. I feel like like there’s always :something: that makes me resort to only being comfortable wearing make-up any day I have to see people / leave the house. But, I started using Thayers in October 2025 (I created my own “Thayers system”: salicylic toner, salicylic pads, and - at times - the stuff in the little dropper bottle) and I can honestly say that :finally: something is working for my skin! I have tried everything! But Thayers is it for me these days. Thank you!!
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Reviewed in the United States on May 27, 2026
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Heather
Lexington, US
★★★★★ 5
Awesome!
Style: Blemish Clearing Toner, Size: 12 Fl Oz (Pack of 1)
Love this product! I've used witch hazel for a long time as a toner and to help keep acne under control. Thayer's is the brand I've always used and loved. This one is specific for acne and blemishes, so I thought I'd give this blend a try. There is a slight fruit loop smell (it fades quickly!) and I feel like it's slightly sticky (which is not how plain witch hazel feels) but that also goes away as it dries. I use this anywhere on my face, but especially where there are blemishes and acne. It works well, and doesn't seem to adversely react with my rosacea , which is a plus! I let it air dry, then apply my favorite moisturizer. Results come quickly, and I love how clean and fresh and skin feels!
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Reviewed in the United States on March 16, 2026
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Ragamuffin
New York, US
★★★★★ 5
Great Toner!
Style: Blemish Clearing Toner, Size: 12 Fl Oz (Pack of 1)
I have both rosacea and acne. I use this to control my acne breakouts, and it never makes my rosacea flare up. It’s really good toner & I highly recommend it. It has never made me have any sort of rash/breakout/reaction.
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Reviewed in the United States on May 5, 2026
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Brandy Doudna
Grantham, US
★★★★★ 5
Works
Style: Blemish Clearing Toner, Size: 12 Fl Oz (Pack of 1)
I've had horrible acne issues for the past 2 years since having my daughter. I've tried everything to get rid of it and nothing was working until I tried this stuff! Within 2 days the redness was significantly reduced and I've been having far less issues with my skin. It did cause the skin to purge in the areas I get the most blemishes but that is normal according to Google
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Reviewed in the United States on April 28, 2026

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