Q4® Plus Herbicide
States registered map without Connecticut
Q4® Plus Herbicide
States registered map without Connecticut

Q4® Plus Herbicide

Liquid Post-Emergent Weed Control

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$39.88
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Made in the USA

Overview

  • Controls both broadleaf and grassy weeds, including yellow nutsedge
  • Contains four powerful actives for broad-spectrum post-emergent weed control
  • Safe for use on cool-season grasses and listed warm-season turf like bermudagrass and zoysiagrass
  • Provides rapid visible response and allows reseeding in as little as one week

Documents

When To Apply

Q4® Plus Turf Herbicide should be applied when weeds are young, actively growing, and easy to control. Ideal application times are during spring and early summer when crabgrass, yellow nutsedge, and other broadleaf weeds begin to emerge. Avoid applying during drought stress or extreme heat, as this can reduce effectiveness and risk turf injury. Always check the weather forecast to ensure there’s no rain expected for at least 24 hours after application for best results.

PRO TIPS

  • Apply to dry turf: Make sure grass is dry before spraying to help the product stick and absorb evenly.
  • Avoid seeding after application: Wait at least one week after application before reseeding or overseeding.

Pro Tips for Best Results

Watch Temperature & Moisture

Watch Temperature & Moisture

Use when the grass is actively growing and not heat-stressed.

Mix & Apply on Calm Days

Mix & Apply on Calm Days


Apply when winds are low (less drift), so coverage is even and uptake is efficient.

Spray Evenly

Spray Evenly

Maintain steady pressure and overlap slightly to ensure uniform coverage across all turf areas.

Rinse Sprayer After Use

Rinse Sprayer After Use

Always clean out your equipment after application to avoid residue or buildup that could affect future treatments.

Keep It Safe

Keep It Safe

Store in a cool, dry place.

Frequently Asked Questions

It controls crabgrass, foxtail, chickweed, clover, dandelion, yellow nutsedge, and many other listed grassy and broadleaf weeds.

It is highly selective and safe for cool-season grasses and listed warm-season turfgrasses such as bermudagrass and zoysiagrass.

Most listed turfgrasses can be reseeded as soon as one week after applying Q4® Plus.

It is labeled for residential lawns, golf courses, commercial and recreational areas, roadsides, cemeteries, and sod farms.

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