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A bottle of Synero herbicide

Synero Selective Weed Killer for Difficult and Invasive Weeds (3L)

£187.25 Inc VAT £156.04 Ex VAT
SKU: 3258
  • Targets broad-leaved lawn weeds
  • Safe for established turf when used correctly
  • Professional-grade formulation
  • Supports a cleaner
  • healthier lawn
Safe Use Notice

Synero selective weed killer effectively tackles invasive, difficult to control weeds and it ideal to use in grasslands, railway embankments, roads...

Availability: In Stock
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Product Detail

Synero is designed to control a wide range of deep rooted perennial and herbaceous weeds on non-crop land such as amenity grasslands, railway embankments, roadsides and other non-agricultural environments.

This product efficiently controls invasive and tricky to control weeds making it ideal for use as part of a vegetation management programme.

Key Points:

  • Use as part of a vegetation management programme with Icade.
  • High levels of vegetative and woody weed control.
  • Can be used on extremely invasive species such as Japanese Knotweed.
  • Rainfast in 1 hour.
  • Safe to grasses.
* Always follow the Usage guide and Aftercare advice

Apply using suitable spray equipment to ensure even and thorough coverage of foliage.

Best results are achieved when weeds are healthy and have sufficient leaf area to absorb the product.

After applying Synero Selective Weed Killer for Difficult and Invasive Weeds, avoid disturbing the treated area to allow the product to work effectively. Monitor the site over the next few weeks and only re‑treat if fresh growth appears. Rinse application equipment thoroughly with a suitable tank cleaner and dispose of washings safely on treated ground. Keep pets and people away from the area until foliage has dried.

Orders placed by 1pm Monday to Friday are typically delivered within 3 to 5 working days (express delivery 1 to 2 days).

Mainland UK orders up to 15kg

  • FREE delivery on orders over £50
  • Orders under £50: £5.99
  • Express delivery: £9.99

Orders over 15kg

  • Delivery is calculated by weight and postcode and starts from £9.99
  • Express delivery is available on heavier orders for an additional charge

Click & Collect

FREE same day Click & Collect is available on the majority of our products from our Peterborough head office. Simply call our team on 0330 165 5568 to order and arrange collection.

For full delivery charges, pallet deliveries and delivery regions, view our delivery page.

What is Synero used for?
Synero 3L tackles invasive, hard-to-control weeds. Ideal for use in grasslands, railway embankments, roadsides and other non-agricultural areas.
How should I use Synero safely and effectively?
Synero should always be used at the correct rate and in line with the instructions supplied with the product.
Is it safe for people and pets around treated areas with Synero?
People and pets should be kept away from treated areas until sprays have dried or granules have been watered in, as appropriate for the product.
Do I need protective equipment when using Synero?
Always wear appropriate personal protective equipment when handling and applying Synero.
A bottle of Synero herbicide