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Spraysmart Mesotrione 480g/L for use in turf only 1L
MESO1
$101.80
+ GST
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PRODUCT INFORMATION
Meso is a selective lawn herbicide that controls a wide range of common weeds without harming cool‑season grasses like Perennial Ryegrass and Tall Fescue. It works both before weeds sprout (pre‑emergent) and after they appear (post‑emergent), making it a versatile option for home lawns.
Its active ingredient, mesotrione, comes from a natural compound found in the bottlebrush plant. It stops weeds from producing chlorophyll, which causes them to turn white and die.
What Meso Controls
Meso is effective on many common lawn weeds, including:
- Chickweed
- Dandelion
- Clover
- Creeping Bentgrass
- Ground Ivy
- Oxalis
- Lawn Burweed
- Henbit
- Purslane
- Wild Violet
- Shepherd’s Purse
- Sowthistle
- Crabgrass (all major types)
It can also reduce Annual Poa.
Why Your Grass Might Turn White After spraying, your lawn may lighten in colour. This is normal and temporary. It happens because mesotrione affects chlorophyll production. The whitening fades as the grass recovers.
If the whitening is heavy or lasts too long, it usually means too much product was applied or the spray overlapped.
Using Meso When Seeding a New Lawn
Meso is one of the few herbicides you can safely use at the same time you sow Perennial Ryegrass or Tall Fescue. It won’t stop your grass seed from growing, but it will stop many weeds from germinating.
How to Apply - Mix 3.6–5.6 ml per 100 m² - Apply in 3–5 litres of water - Water the area with **about 3 mm** of irrigation right after spraying
Optional Boost For stronger pre‑emergent protection, Meso can be mixed with Etho when used on Ryegrass or Tall Fescue.
Fine Fescue Warning Do not use Meso as a pre‑emergent on Fine Fescue. If your seed blend contains Fine Fescue, only use Meso if it makes up less than 20%of the mix.
Using Meso on Established Lawns (Post‑Emergent)
Once your lawn is established, Meso can be used to kill existing weeds.
When to Apply - Grass must be at least 4 weeks old - It should have been mowed 2–3 times
How to Apply - Mix 3.6–5.6 ml per 100 m² - Apply in 4–5 litres of water - Do not water after spraying
For tougher weeds, adding a surfactant (like Spraysmart Pennitr8) helps the product stick and work more effectively.
Using Meso as a Pre‑Emergent on an Existing Lawn
Meso can also be used to prevent new weeds from sprouting in established turf.
- Provides 6–8 weeks of protection - Water in immediately after application - Best used in early spring when new weeds are just starting to appear - EPA rules allow only two applications per year, so timing matters
If weeds are already visible and growing, treat them as a post‑emergent instead and skip the irrigation.
Application Tips for Best Results - Use Spraysmart marking dye to avoid overlapping your spray.
- Avoid mowing for 24 hours after a post‑emergent application. - Apply evenly and measure carefully to avoid turf whitening. ---Safety Information - Keep pets and children off the lawn until the spray has dried—ideally 24 hours. - Do not use near food crops, animal feed, or grazing areas. - Follow all label instructions and local regulations. - Contains 480 g/L mesotrione (suspension concentrate).
Its active ingredient, mesotrione, comes from a natural compound found in the bottlebrush plant. It stops weeds from producing chlorophyll, which causes them to turn white and die.
What Meso Controls
Meso is effective on many common lawn weeds, including:
- Chickweed
- Dandelion
- Clover
- Creeping Bentgrass
- Ground Ivy
- Oxalis
- Lawn Burweed
- Henbit
- Purslane
- Wild Violet
- Shepherd’s Purse
- Sowthistle
- Crabgrass (all major types)
It can also reduce Annual Poa.
Why Your Grass Might Turn White After spraying, your lawn may lighten in colour. This is normal and temporary. It happens because mesotrione affects chlorophyll production. The whitening fades as the grass recovers.
If the whitening is heavy or lasts too long, it usually means too much product was applied or the spray overlapped.
Using Meso When Seeding a New Lawn
Meso is one of the few herbicides you can safely use at the same time you sow Perennial Ryegrass or Tall Fescue. It won’t stop your grass seed from growing, but it will stop many weeds from germinating.
How to Apply - Mix 3.6–5.6 ml per 100 m² - Apply in 3–5 litres of water - Water the area with **about 3 mm** of irrigation right after spraying
Optional Boost For stronger pre‑emergent protection, Meso can be mixed with Etho when used on Ryegrass or Tall Fescue.
Fine Fescue Warning Do not use Meso as a pre‑emergent on Fine Fescue. If your seed blend contains Fine Fescue, only use Meso if it makes up less than 20%of the mix.
Using Meso on Established Lawns (Post‑Emergent)
Once your lawn is established, Meso can be used to kill existing weeds.
When to Apply - Grass must be at least 4 weeks old - It should have been mowed 2–3 times
How to Apply - Mix 3.6–5.6 ml per 100 m² - Apply in 4–5 litres of water - Do not water after spraying
For tougher weeds, adding a surfactant (like Spraysmart Pennitr8) helps the product stick and work more effectively.
Using Meso as a Pre‑Emergent on an Existing Lawn
Meso can also be used to prevent new weeds from sprouting in established turf.
- Provides 6–8 weeks of protection - Water in immediately after application - Best used in early spring when new weeds are just starting to appear - EPA rules allow only two applications per year, so timing matters
If weeds are already visible and growing, treat them as a post‑emergent instead and skip the irrigation.
Application Tips for Best Results - Use Spraysmart marking dye to avoid overlapping your spray.
- Avoid mowing for 24 hours after a post‑emergent application. - Apply evenly and measure carefully to avoid turf whitening. ---Safety Information - Keep pets and children off the lawn until the spray has dried—ideally 24 hours. - Do not use near food crops, animal feed, or grazing areas. - Follow all label instructions and local regulations. - Contains 480 g/L mesotrione (suspension concentrate).
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