Best Spider Mite Killer Deals Online in the UK (25 Deals Found)

Last Updated - 04/10/2026 Sort By:

Best Choice
SMC Spidermite control

New
SMC Spider mite Control | 750ml Ready to Use | Spider Mite Killer and Plant Bug Spray for Indoor and Outdoor Plants | Ki
WORKS BY PHYSICAL ACTION - A fine film of plant-based oil coats pests and blocks the pores they breathe through. The for

£9.99
Best Value
READY STEADY DEFEND

New
Spider Mite Killer Spray 2.5L | Large Plant Protection | Controls Red Spider Mites, Aphids, Whiteflies & More | Ideal fo
Formulated with natural insecticidal soap from potassium salts and soya oils, this extra-large 2.5L Spider Mite Killer S

£26.99
New
SPIDER MITE KILLER SPRAY SMC Mite Control 100ml Concentrate ORGANIC. FAST POST
Available in 100ml Concentrate, 300ml Concentrate and 750ml ready to use spray.

£13.50
READY STEADY DEFEND

New
Spider Mite Killer Spray for Plants 200ml – Natural Insecticidal Soap – Kills Red Spider Mites, Aphids, Whiteflies, and
Effective Spider Mite Control: Our Spider Mite Killer Spray is formulated with natural insecticidal soap using potassium

£11.99
New
Spider Mite Killer Spray 2.5L | Large Plant Protection | Controls Red Spider...
The large capacity ensures cost-effective coverage for gardeners managing extensive growing areas or recurring infestati

£33.18
Dragonfli

New
Spider Mite Killer - Amblyseius californicus Predators - Premium Foil Sachets (5 Sachets)
Part of the Dragonfli Spider Mite Preventative System - More information at dragonfli.co.uk. Sachets for indoor use only

£15.99
SMC Spidermite control

New
SMC Spider Mite Control 100ml Concentrate Makes 4L | Spider Mite Killer and Bug Spray for Indoor and Outdoor Plants | Ki
WORKS BY PHYSICAL ACTION - A fine film of plant-based oil coats pests and blocks the pores they breathe through. The for

£12.50
New
Canna Cure 1L Spider Mite Killer Pest Control Foliar Spray FAST POSTAGE
Developed by CANNA Research Laboratories, it’s unlike any other plant protection product, because it’s also a leaf nutri

£15.94
Dragonfli

New
Spider Mite Killer - Amblyseius californicus Predators - Premium Foil Sachets (10 Sachets)
Part of the Dragonfli Spider Mite Preventative System - More information at dragonfli.co.uk. Sachets for indoor use only

£20.99
New
SMC Spidermite Control 750ml Ready Mixed Spray Organic Spider Mite Killer
SMC Spidermite 100% Organic.

£13.99
37% Off
Provanto

New
SBM Life Science Provanto Ultimate Bug Killer RTU 1L
FAST ACTING: A contact bug killer that kills most common plant pests including Box Tree Caterpillar

£4.99 £7.86
SMC Spidermite control

New
SMC Spider Mite Control 300ml Concentrate Makes 12L | Spider Mite Killer and Bug Spray for Indoor and Outdoor Plants | K
WORKS BY PHYSICAL ACTION - A fine film of plant-based oil coats spider mites and blocks the pores they breathe through.

£22.99
New
SMC Spidermite Control - Organic insect spider mite killer hydroponics
Dilutes to make 4 litres of full strength spray.

£16.95
SMC Spidermite control

New
SMC Spidermite control Plant Bug Killer 100ml Concentrate
Kills most common plant pests including, Spider Mites, Whiote Fly, Black Fly, Green Fly, Aphids, Thrips and Scale.

£9.50
New
Canna 1L Spider Mite Killer Pest Control Foliar Spray Free Delivery
Forms a second natural protective skin on your plants., improves leaf colour and vigour.

£16.99
Just Green

New
SPIDERMITE Killer - 5 Slow Release Bags
Amblyseius Andersonii is an effective Spider Mite predator, which is much more tolerant of temperatures, so it is very e

£11.95
New
Canna Cure 2 X 1L Spider Mite Killer Pest Control Foliar Spray 2 LTR
Forms a second natural protective skin on your plants., improves leaf colour and vigour.

£24.99
New
Spider Mite Killer Spray for Plants 200ml – Natural Insecticidal Soap – Kill
Safe for use on indoor and outdoor plants, including fruits and vegetables.

£15.50
New
Organic Insecticidal Soap Concentrate - Effective Against Whiteflies & Thrips
Our Organic Insecticidal Soap Concentrate is a powerful ally in your battle against unwanted garden pests.

£30.93 £32.56
New
SPIDER MITE KILLER SPRAY SMC Spider Mite Control 750ml ORGANIC. FAST POSTAGE
Available in 100ml Concentrate, 300ml Concentrate and 750ml ready to use spray.

£12.95
New
Spider Mite Killer Sachets - Amblyseius californicus - Natural Predatory Mites
Amblyseius californicus mites and how can they help?.

£30.99
New
Red Spider Mite Killer Sachets Amblyseius californicus Predator Mite Hydroponics
Amblyseius californicus mites and how can they help?.

£73.99
New
SPIDER MITE KILLER SMC Spider Mite Control 100ml/300ml/750ml ORGANIC FAST POST
Available in 100ml Concentrate, 300ml Concentrate and 750ml ready to use spray.

£16.95
New
red mite bomb fumigator - poultry housing insect smoke killer spider mites
Kills Red Mites and all crawling and flying insects in animal housing.

£14.99
New
Canna Cure 5L, 750, 1ltr Spider Mite Killer Pest Control Foliar Spray FAST POST
Developed by CANNA Research Laboratories, it’s unlike any other plant protection product because it’s also a leaf nutrie

£17.49

25 Spider Mite Killer deals are available from: Amazon, eBay stores, starting from £4.99.
The biggest discount we found is 37% on SBM Life Science Provanto Ultimate Bug Killer RTU 1L at Amazon.
The lowest price we found is £4.99 while the highest is £73.99.
Prices for the best Spider Mite Killer deals average at £19.89.
Last updated on October 4, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Spider Mite Killer.