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Prodiamine 4L

QualiPro Herbicide

Provides pre-emergent grass and broadleaf weed control. Flexible application allows for both spring and fall use providing season long crabgrass control. Prodiamine

Item Number

Package Size

Availability

PRODIAMINE2

2 x 2.5 GAL Jug / Case

In Stock

Quali-Pro Prodiamine 4L – Pre-Emergent Herbicide


Description:
Quali-Pro Prodiamine 4L is a professional-grade, pre-emergent herbicide designed to control a wide variety of grassy and broadleaf weeds before they germinate. Formulated with 40.7% Prodiamine, this liquid herbicide provides long-lasting residual control, making it ideal for turfgrass, landscape ornamentals, nurseries, and non-crop areas. Its flexible application allows for both fall and spring treatments, offering season-long weed prevention.


Key Benefits:

  • Pre-Emergent Control – Prevents weeds from germinating, reducing the need for post-emergent treatments.

  • Long-Lasting Residual – Offers season-long protection with proper application timing.

  • Versatile Use – Can be applied in various settings, including golf courses, lawns, sod farms, and ornamental plantings.

  • Cost-Effective – Requires fewer applications compared to other weed control methods.

  • Safe for Established Turf & Ornamentals – Protects desirable plants when applied as directed.

Weeds Controlled:

  • Quali-Pro Prodiamine 4L effectively prevents the growth of:
    Crabgrass (Digitaria spp.)

  • Goosegrass (Eleusine indica)

  • Poa annua (Annual bluegrass)

  • Henbit (Lamium amplexicaule)

  • Chickweed (Stellaria media)

  • Knotweed (Polygonum aviculare)

  • Spurge (Euphorbia spp.)

  • Purslane (Portulaca oleracea)

  • Foxtail (Setaria spp.)

  • Barnyardgrass (Echinochloa crus-galli)

(For a complete list, refer to the product label.)


Application Rates:

Application rates depend on the desired level of weed control, turfgrass type, and soil conditions. Typical rates range from 0.23 to 1.1 oz per 1,000 sq. ft.


Important: Apply before weed seeds germinate and incorporate with irrigation or rainfall (at least 0.5 inches) within 14 days for best results.


Restrictions & Safety:

Not for use on newly seeded areas – Wait until turf is well established.
Do not apply to golf course putting greens.

Avoid use on edible crops.
Keep away from waterways and areas with heavy runoff.
Re-entry Interval (REI): 12 hours after application.


Personal Protective Equipment (PPE):

  • Long-sleeved shirt and long pants

  • Chemical-resistant gloves

  • Closed-toe shoes with socks

  • Safety glasses or goggles

It is a violation of Federal law to use this product in a manner inconsistent with its labeling.  Always consult the product label for complete application instructions and safety guidelines.  For the most accurate label information please refer to the manufacturer website.

© 2025 Clesens, Clesen PROturf Solutions & Arthur Clesen Inc. All Rights Reserved.

Arthur Clesen Inc. and Clesen PROturf Solutions is a distributor of commercial fertilizer, chemicals, grass seed, ice, melters, T&O Supplies and Irrigation Components to green industry professionals in Illinois, Indiana, Iowa, Michigan, Minnesota and Wisconsin.

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