Description

Onset 10GR Herbicide 5kg | Professional Granular Pre-Emergent Herbicide for Turf

Prevent Summer Grass, Winter Grass & Other Difficult Weeds Before They Germinate

Onset 10GR Herbicide 5kg is a professional granular pre-emergent herbicide formulated with 10g/kg Prodiamine to provide long-lasting residual weed control in established turf.

Designed for Australian lawn conditions, Onset 10GR helps stop susceptible weed seeds from germinating, reducing weed pressure before it starts. The easy-to-spread granular formulation also contains plant-available silicon, helping support stronger, more resilient turf.

Ideal for homeowners, landscapers, sports turf managers and golf course professionals, Onset 10GR is an effective choice for maintaining cleaner, healthier lawns.

Why Choose Onset 10GR Herbicide?

✔ Professional granular pre-emergent herbicide

✔ Up to 6 months residual weed control when used according to the label

✔ Controls a broad range of annual grass weeds

✔ One of the few products registered for difficult weeds such as Parramatta Grass, Rat’s Tail Fescue, Paspalum and African Lovegrass in established turf

✔ Dust-free granules for easy, even application

✔ Contains plant-available silicon

✔ Suitable for many established warm-season turf varieties

✔ Ideal for residential and commercial turf

Active Ingredient

10g/kg Prodiamine

Group 3 Herbicide

Prodiamine prevents susceptible weed seeds from developing healthy root systems during germination, helping stop weeds before they emerge. It provides residual control when activated by rainfall or irrigation and used according to the product label.

Controls Common Lawn Weeds

Onset 10GR is registered for the pre-emergent control of a wide range of weeds, including:

• Summer Grass (Crabgrass)
• Winter Grass (Poa annua)
• Crowsfoot Grass
• Barnyard Grass
• Parramatta Grass
• Rat’s Tail Fescue
• Paspalum
• African Lovegrass
• Kentucky Blue Grass
• Bahia Grass (seedlings)

Always refer to the APVMA-approved label for the complete list of registered weeds and application rates.

Suitable Turf Types

Onset 10GR is registered for use on established:

• Buffalo Grass
• Kikuyu
• Common Couch
• Hybrid Couch
• Zoysia
• Queensland Blue Couch
• Seashore Paspalum
• Carpet Grass
• Bahia Grass

Only apply to well-established turf as directed on the product label.

The Benefits of Granular Pre-Emergent Herbicides

Applying a granular pre-emergent herbicide before seasonal weed germination can help:

• Prevent weeds before they appear
• Reduce the need for post-emergent herbicide applications
• Improve lawn appearance
• Reduce competition for nutrients and moisture
• Maintain thicker, healthier turf

The dust-free granules are easy to spread using a fertiliser spreader, making application quick and consistent.

Added Silicon for Stronger Turf

Unlike many pre-emergent herbicides, Onset 10GR is carried on granules containing plant-available silicon.

Silicon has been associated with improved turf resilience, stronger cell walls, better wear tolerance and enhanced tolerance to environmental stress as part of an overall turf management program.

Application

For the best results:

• Apply before target weeds germinate.
• Spread evenly using a calibrated granular spreader.
• Activate the product with at least 6mm of rainfall or irrigation within 7 days of application.
• Do not apply to newly established or stressed turf.

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

Why Buy From Turf Products Australia?

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

When you shop with us you’ll receive:

• Genuine Onset 10GR Herbicide
• Expert lawn care advice
• Fast Australia-wide shipping
• Professional-grade turf products
• Friendly Australian customer support

Frequently Asked Questions

What is Onset 10GR used for?

Onset 10GR is a selective pre-emergent herbicide used to prevent a wide range of annual grass weeds from germinating in established turf.

How long does Onset 10GR last?

When applied according to the label, Onset 10GR provides residual weed control for up to six months, depending on environmental conditions and weed pressure.

Does it control existing weeds?

No. Onset 10GR is a pre-emergent herbicide, meaning it prevents susceptible weed seeds from establishing. Existing weeds should be treated with an appropriate post-emergent herbicide.

When should I apply Onset 10GR?

Apply before seasonal weed germination. Spring applications are commonly used for Summer Grass prevention, while late summer to early autumn applications help prevent Winter Grass, following the product label recommendations.

Can I use it on newly laid turf?

No. Only apply to well-established turf that meets the label requirements.

Order Onset 10GR Herbicide 5kg Today

Protect your lawn before weeds become a problem with Onset 10GR Herbicide.

Prevent Summer Grass, Winter Grass and other troublesome weeds while supporting a healthier, stronger lawn with one easy granular application.

APVMA

Label

SDS

Tech Sheet