cornerstone plus group 9 herbicide Q4 Plus Herbicide

cornerstone plus group 9 herbicide Q4 Plus HerbicideAll in One Post Emergent Weed Control for Lawns Four active ingredients. One complete weed control solution. Q4 Plus Turf Herbicide is a professional grade, post emergent herbicide designed to control grassy weeds, sedges, and broadleaf weeds in a single application. With four powerful active ingredients working together, Q4 Plus eliminates the need for multiple products, making lawn weed control simple and highly effective. It controls tough weeds

All-in-One Post-Emergent Weed Control for Lawns

Four active ingredients. One complete weed control solution.

Q4® Plus Turf Herbicide is a professional-grade, post-emergent herbicide designed to control grassy weeds, sedges, and broadleaf weeds in a single application. With four powerful active ingredients working together, Q4 Plus eliminates the need for multiple products, making lawn weed control simple and highly effective.

It controls tough weeds like crabgrass and yellow nutsedge while also targeting common broadleaf weeds such as clover, chickweed, and dandelion. Enhanced with fertilizer components to support turf health, Q4 Plus helps your lawn recover quickly and grow thicker after weed removal.

What It Controls

• Crabgrass
• Yellow Nutsedge
• Foxtail
• Chickweed
• Clover
• Dandelion
• And many other listed grassy and broadleaf weeds (see label for full list)

Why Choose Q4® Plus

• Four-Active Formula: Controls grassy weeds, sedges, and broadleaf weeds in one product.
• Crabgrass & Nutsedge Control: Eliminates two of the most difficult lawn weeds.
• Broadleaf Power: Tackles clover, chickweed, dandelion, and more.
• Fast Results: Visible weed decline in days.
• Year-Round Flexibility: Can be applied whenever weeds are actively growing.

Lawn Types Safe for Use

• Kentucky Bluegrass
• Tall Fescue & Fine Fescues
• Perennial Ryegrass
• Annual Ryegrass
• Bermudagrass
• Zoysiagrass

Always verify turf tolerance and local restrictions on the product label before application.

Application Guidelines

• Apply to actively growing weeds.
• Use a properly calibrated sprayer for uniform coverage.
• Avoid mowing 1–2 days before and after application.
• Do not apply to drought- or heat-stressed turf.
• Follow labeled rates based on turf type and weed pressure.

Best For

• Homeowners who want one product to control multiple weed types
• Lawns with mixed weed infestations
• Cool-season and warm-season turf
• Professional turf maintenance programs

Q4® Plus simplifies lawn weed control by combining crabgrass, nutsedge, and broadleaf power into one efficient, professional-grade solution.