Choosing the Right Sprayer for Weed Control: Knapsack, Handheld & Professional Application

Why the Right Sprayer Matters

Weed control products are only as effective as the way they are applied. Choosing the correct sprayer ensures:

• Accurate dosing

• Even coverage

• Reduced drift

• Protection of surrounding plants

• Compliance with UK regulations

Whether you are a home gardener, landscaper, contractor, or local authority, using the right spraying equipment is essential for safe, efficient weed control.

Types of Weed Sprayers Explained

Handheld Garden Sprayers

Best suited for:
✔ Small gardens
✔ Spot treatment
✔ Paths, patios, and fence lines

Advantages:

• Lightweight and easy to use

• Ideal for selective weed control

• Low cost

Limitations:

• Limited capacity

• Not suitable for large areas

Knapsack (Backpack) Sprayers

Best suited for:
✔ Medium to large areas
✔ Professional gardeners and landscapers
✔ Councils and estate maintenance

Advantages:

• Larger tank capacity (typically 10–20L)

• Consistent pressure

• Comfortable for extended use

• Suitable for total, selective, and residual weed killers

Knapsack sprayers are the industry standard for professional weed control across the UK.

Professional & Specialist Sprayers

Used by:
✔ Contractors
✔ Highways and utilities
✔ Industrial sites

These may include:

• Battery-powered knapsack sprayers

• Controlled droplet application (CDA) systems

• Low-drift nozzle setups

These systems improve accuracy, safety, and efficiency, particularly when working near sensitive areas.

Matching the Sprayer to the Weed Killer

Using the wrong sprayer can lead to over-application, drift, or poor results.

Importance of Nozzles & Pressure Control

The nozzle controls:

• Droplet size

• Spray pattern

• Drift risk

Low-drift nozzles are strongly recommended for:

• Professional use

• Near planting beds

• Hard surfaces near drains

Consistent pressure ensures even application and avoids runoff.

Safety & Compliance When Spraying in the UK

When applying weed killers, always:

• Wear appropriate PPE

• Follow product label instructions

• Avoid windy conditions

• Protect drains and watercourses

• Clean equipment after use

Professional users may require PA certification depending on product and situation.

Cleaning & Maintaining Your Sprayer

Proper maintenance ensures longevity and safety:

1. Rinse after every use

2. Flush nozzles and hoses

3. Store away from frost

4. Clearly label dedicated sprayers

Never use the same sprayer for weed killers and fertilisers unless thoroughly cleaned.

Common Spraying Mistakes to Avoid

❌ Spraying in windy weather
❌ Over-applying product
❌ Using incorrect nozzle
❌ Poor calibration
❌ Spraying near drains or water

Correct equipment and technique reduce environmental risk and improve results.

Sprayers Available from GardenersSupplies.co.uk

GardenersSupplies.co.uk offers:

• Handheld garden sprayers

• Professional knapsack sprayers

• Replacement nozzles and seals

• Measuring jugs and PPE

Suitable for gardeners, landscapers, councils, contractors, and estates.

Frequently Asked Questions

Can I use one sprayer for weed killer and fertiliser?
It’s not recommended unless thoroughly cleaned to avoid contamination.

Do I need a knapsack sprayer for weed control?
For larger areas, yes — they provide better control and efficiency.

Are battery sprayers better?
Battery sprayers reduce fatigue and provide consistent pressure, ideal for professionals.

Conclusion

Choosing the right sprayer is essential for effective weed control in the UK. Whether treating a small garden path or managing large estates, the correct equipment improves results, protects surrounding areas, and ensures legal compliance.

With a range of handheld and knapsack sprayers, GardenersSupplies.co.uk supports everyone from home gardeners to professional contractors with reliable weed application equipment.