Q4 Plus Turf Herbicide for Grassy and Broadleaf Weeds combines four powerful active ingredients into one single-product formulation to control grassy weeds such as crabgrass and yellow nutsedge, as well as tough broadleaf weeds like clover and chickweed.
Q4 Plus offers rapid visual response, is highly selective on cool-season and listed warm-season turfgrasses, and has a one-week reseeding interval for most listed turf species.
Q4 Plus controls the following weeds:
- Yellow nutsedge
- Crabgrass
- Foxtail
- Chickweed
- Clover
- Dandelion
- Many more grassy and broadleaf weeds
Q4 Plus is labeled for use on:
- Annual bluegrass (Poa annua)
- Annual ryegrass
- Bermudagrass (common and hybrid)
- Fescues
- Kentucky bluegrass
- Perennial ryegrass
- Rough bluegrass (Poa trivialis)
- Zoysiagrass
Yellow Nutsedge (Cyperus esculentus)
Yellow nutsedge is a perennial weed that usually emerges a few weeks after crabgrass, spreading voraciously through lawns via a network of rhizomes and tubers. It thrives in low-lying, wet soils with poor drainage, or in areas that receive irrigation frequently. Each yellow nutsedge plant can produce several hundred tubers each season. These tubers can remain dormant in the soil for several years before they emerge as a new plant.
How to Identify It
- Triangular-shaped stem
- Yellow to light green, grass-like leaves arranged in groups of three
- Grows faster than most turf species
- Sprouts golden, spiked umbrella flowers
How to Control It with Q4 Plus
Make applications in the late spring and early summer, before the plant matures and produces additional tubers. Repeat applications over multiple growing seasons may be required to achieve effective chemical control.
For cool-season turfgrasses:
• Apply 2.6 – 3.0 fl. oz. per 1,000 sq. ft. at spray volumes of 1.2 – 5.0 gallons per 1,000 sq. ft.
For warm-season turfgrasses:
• Apply 1.8 – 2.6 fl. oz. per 1,000 sq. ft. at spray volumes of 1.2 – 5.0 gallons per 1,000 sq. ft.
Read more tips for effective nutsedge control or find more information on Q4 Plus.
