Description

Coliseum Herbicide | Winter Grass & Ryegrass Herbicide for Couch Lawns

Professional Selective Post-Emergent Herbicide for Winter Grass (Poa annua) & Ryegrass

Coliseum Herbicide is a professional selective post-emergent herbicide formulated for the control of Winter Grass (Poa annua) and Ryegrass (Lolium spp.) in established Common Couch and Hybrid Couch turf.

Containing 250 g/kg Rimsulfuron, Coliseum provides effective post-emergent weed control while maintaining excellent turf safety on approved Couch varieties when used according to the product label.

Unlike pre-emergent herbicides, which prevent weeds from germinating, Coliseum targets weeds that are already actively growing, making it an effective solution for existing Winter Grass and Ryegrass infestations.

Why Choose Coliseum Herbicide?

✔ Professional selective post-emergent herbicide

✔ Controls existing Winter Grass (Poa annua)

✔ Controls Ryegrass (Lolium spp.)

✔ Excellent turf safety on established Common Couch and Hybrid Couch

✔ Rainfast after one hour when applied according to the product label

✔ Suitable for newly established Couch from five weeks after planting (as per label)

✔ Short soil residual allows reseeding approximately 7–10 days after application, subject to label directions

✔ Professional Water Dispersible Granule (WDG) formulation

Active Ingredient

250 g/kg Rimsulfuron

Herbicide Group 2

Coliseum is a selective post-emergent herbicide that is absorbed by susceptible weeds to provide effective control while remaining suitable for approved turf species when used according to the product label.

Controls

Coliseum Herbicide is registered for the post-emergent control of:

• Winter Grass (Poa annua)
• Ryegrass (Lolium spp.)

Always refer to the current product label for complete directions for use, application rates and timing.

Suitable Turf Types

Coliseum Herbicide is registered for use on established:

• Common Couch
• Hybrid Couch

Only use on turf species listed on the product label.

Why Lawn Owners Choose Coliseum

Winter Grass (Poa annua), often simply called “Poa”, and Ryegrass can quickly compete with Couch turf during the cooler months, reducing lawn appearance, uniformity and playing quality.

Applying Coliseum Herbicide to actively growing weeds helps:

• Control existing Winter Grass
• Control unwanted Ryegrass
• Maintain the appearance and quality of Couch turf
• Improve overall lawn presentation
• Allow reseeding approximately 7–10 days after application where required, subject to label directions

For best results, apply while weeds are healthy and actively growing under favourable environmental conditions, following the product label.

Application

For optimum performance:

• Apply to healthy, actively growing weeds.
• Follow the recommended application rate on the product label.
• Use suitable spray equipment to achieve even coverage.
• The treated area may be watered after one hour in accordance with the product label.
• Follow all label directions regarding application timing, environmental conditions and reseeding.

Always read and follow the APVMA-approved product label before use.

Looking to Prevent Future Winter Grass?

Coliseum Herbicide controls existing Winter Grass and Ryegrass after they have emerged.

To help reduce future Winter Grass germination, consider applying a suitable pre-emergent herbicide, such as Spartan Herbicide, at the appropriate time of year as part of an integrated lawn weed management program.

Why Buy From Turf Products Australia?

At Turf Products Australia, we supply genuine professional lawn care products selected for Australian conditions.

When you shop with us, you’ll receive:

• Genuine Coliseum Herbicide
• Expert lawn care advice
• Fast Australia-wide shipping
• Professional turf products
• Friendly Australian customer support

Frequently Asked Questions

What weeds does Coliseum Herbicide control?

Coliseum Herbicide is registered for the post-emergent control of Winter Grass (Poa annua) and Ryegrass (Lolium spp.) in established Common Couch and Hybrid Couch turf.

Is Coliseum a pre-emergent herbicide?

No. Coliseum is a selective post-emergent herbicide that controls weeds after they have emerged. For preventing future Winter Grass germination, a suitable pre-emergent herbicide should be applied at the appropriate time of year.

Can I use Coliseum on Buffalo or Kikuyu lawns?

No. Coliseum Herbicide is only registered for use on established Common Couch and Hybrid Couch. Do not use on turf species that are not listed on the product label.

Can I reseed after using Coliseum?

Yes. Coliseum has a short soil residual, allowing reseeding approximately 7–10 days after application, subject to the product label and growing conditions.

When is the best time to apply Coliseum?

Apply Coliseum when Winter Grass or Ryegrass is healthy and actively growing. Following the label recommendations for timing and environmental conditions will help achieve the best results.

Order Coliseum Herbicide Today

Take control of Winter Grass and Ryegrass with Coliseum Herbicide.

Whether you’re maintaining a home lawn, sports field or commercial turf, Coliseum provides professional selective post-emergent weed control for approved Couch turf varieties, helping maintain a cleaner, healthier and more uniform lawn.

Product Label: Download Here

Safety Data Sheet (SDS): Download Here

Info Sheet: Download Here