Topline Resolva Moss Killer Sprayer, 3 L Ready to Use

Topline Resolva Moss Killer Sprayer is a 3-litre ready-to-use liquid treatment for outdoor moss control. Its listed uses include paths, driveways, roofs and patios, while the directions also specify permeable surfaces such as block paving, gravel and decking.

At a glance

Ready-to-use liquid avoids a mixing step, according to the listing.
The listing identifies block paving, gravel and decking as permeable surfaces for use.
The stated coverage is 10 square meters per liter.
The product is said to affect green growth including grasses, so take care around plants you want to retain.

Price

£22.05Save 15%

Reference price: ~~£25.95~~

Price checked: 12 Nov 2026

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Pros and cons

Pros

Supplied as a ready-to-use 3-litre liquid, rather than a concentrate requiring dilution.
The listed applications cover several outdoor areas, including paths, driveways, roofs and patios.

Technical specifications

9 specifications

Identity and formulation
Brand	Topline
Product form	Liquid
Liquid volume	3 Litres
Ready-to-use formulation	Ready to use

Coverage and handling
Coverage	10 square meters per liter
Weight listed	4 Kilograms

Use and application
Active ingredient stated	The product contains pelargonic acid.
Application timing	The best time to kill moss is when it's actively growing, in late spring to early summer or late summer to early fall.
Repeat treatment guidance	Repeat treatments up to 4 times per year, if necessary.

What to know before buying

The listing describes the product as child- and pet-friendly after drying, but its safety warning says to keep children and pets away until completely dry. It also gives visible-results timing as within hours in one feature and within 24 hours in the directions. Follow the product label, apply only to permitted surfaces, and account for the stated effect on grasses and other green growth.

What’s in the box

Included

3L Resolva Moss Killer Sprayer

Who is it for?

A good fit for

Gardeners seeking a ready-to-use moss treatment for outdoor paths, drives, patios or other listed surfaces.
Buyers who want a liquid treatment with a stated coverage rate for estimating how much product an area may need.

Less suited to

Anyone seeking a selective treatment that preserves grasses or other green growth in the treated area.

Topline Resolva Moss Killer Sprayer, 3 L Ready to Use · photo 2 — Additional product photo 2

Customer reviews on Amazon

3.9 / 5 · 23 ratings

5 stars51%51%
4 stars17%17%
3 stars20%20%
2 stars0%0%
1 star12%12%

The listing supplies aggregate ratings but no customer-comment summary. The distribution is mixed, with five-star and three-star ratings as well as some one-star ratings. These figures indicate varied reported satisfaction, but do not explain the reasons or establish how it performs on a particular surface.

Frequently asked questions

Does this moss killer need diluting?

The listing describes it as ready to use, so no dilution step is stated.

Which surfaces are named for treatment?

The listing names driveways, paths, lawns and building roofs. Its directions specify permeable surfaces such as block paving, gravel and decking.

How much area does 3 litres cover?

The stated coverage is 10 square meters per liter. Coverage in practice can depend on application and surface, which the listing does not detail.

What precautions are given?

The safety warning says to keep children and pets away until the treated area is completely dry and to read the label and product information before use.