Roundup lawn weed killer concentrate 946 ml — for cool-season turf, rainproof in ~3 hrs, up to 3 months control

Roundup for Lawns₂ Concentrate is a liquid weed control concentrate formulated to kill common lawn weeds by treating foliage and roots in listed Northern grasses.

If you want targeted weed control for cool-season turf, this 32 fl. oz. concentrate mixes with water in a sprayer to treat crabgrass, dandelion, clover, nutsedge and many more species. It’s designed for use on Kentucky bluegrass, perennial ryegrass, fescues and zoysiagrass when weeds are actively growing. Follow label directions for rates, application timing and safety precautions; keep people and pets out of treated areas until sprays dry.

How quickly does Roundup for Lawns₂ start working and how long does control last?

Visible symptom development begins shortly after application, and the formula becomes rainproof in about three hours. Under normal conditions, labeled use can provide weed control lasting up to three months for listed species.

• Symptoms often appear within days, varying by weed type and weather.
• Product becomes rainfast in approximately 3 hours.
• Up to 3 months of control as indicated on the product label for listed weeds.

Which grasses and weeds are safe to treat with this concentrate?

This concentrate is intended for use on Northern turfgrasses like Kentucky bluegrass, perennial ryegrass, various fescues (tall, red, fine) and zoysiagrass. It controls a broad list of weeds—253 types are listed on the label—when applied as directed.

• Approved turf: Kentucky bluegrass, perennial ryegrass, tall/red/fine fescues, zoysiagrass.
• Common targets: crabgrass, dandelion, clover, yellow nutsedge, chickweed, oxalis, purslane.
• See the included label booklet for the complete weed list and any turf restrictions.

How do I mix and apply Roundup for Lawns₂ Concentrate safely and effectively?

Measure the recommended concentrate rate, mix with water in a tank or Dial 'N Spray, and apply uniformly over the area. Apply when weeds are actively growing and daytime temperatures are between 45°F and 90°F; do not re-enter treated areas until spray residues have dried.

• Use clean equipment: tank sprayer or Dial 'N Spray compatible with the concentrate.
• Apply in spring or fall for best results on actively-growing weeds.
• Follow label for specific mixing rates, protective equipment, and reentry intervals.

What precautions should I take to protect people, pets, and desirable plants?

Keep people and pets away from treated areas until sprays are dry, avoid drift onto ornamentals or garden plants, and follow the label’s personal protective equipment and storage instructions. Read the label booklet for complete safety directions and first-aid information.

• Do not allow people or pets in the treated area until sprays have dried.
• Avoid spraying on windy days to minimize drift to non-target plants.
• Store the concentrate in its original container and follow disposal instructions on the label.

Who is this for: Homeowners and lawn care professionals maintaining cool-season or Northern turf who need a concentrated, broad-spectrum post-emergent weed control solution that treats both foliage and roots. This product is suited for yards with established Kentucky bluegrass, perennial ryegrass, fescues or zoysiagrass where the labeled weed species are present and where users will follow the product label for safe, effective application.