Spray2Grow Spider Mite Protection - 500ml - Natural Spider Mite Defence Spray
Best for: Growers dealing with red spider mite or two-spotted spider mite who want a plant-based spray rather than a synthetic miticide.
Our thoughts
Spider mites hate garlic almost as much as your neighbours will if you're spraying it indoors, but it's a genuinely effective, low-fuss way to knock back an infestation without reaching for anything harsher. Clear off any visible webbing before spraying so the solution actually reaches the mites underneath rather than sitting on top of it.
Spray2Grow Spider Mite Protection is a concentrate built around plant extracts, saponins, and salts, with garlic extract doing a lot of the heavy lifting - spider mites are particularly averse to it. Diluted and applied as a foliar spray, it's designed to work against spider mites at every life stage, from eggs through to adults, and is safe to use at any stage of plant growth thanks to its organic composition.
A 500ml bottle makes up 10 litres of ready-to-use spray at the standard dilution rate. As well as tackling the mites directly, the formula is intended to help the plant recover more quickly from the damage spider mites leave behind.
How it compares
It's a natural, plant-extract spray rather than a synthetic pesticide, aimed specifically at spider mites.
- Garlic and saponin-based, similar in principle to SB Plant Invigorator's soap-and-extract approach, rather than a chemical acaricide
- Targets spider mite specifically, unlike Guard'n'Aid's spider mite concentrate which uses a different plant-oil blend for the same target pest
- Covers all life stages - eggs, larvae, and adults - rather than only knocking down visible adult mites
A solid natural option if you'd rather not use a chemical miticide on plants you're going to eat or smoke.
Usage guidance
Dilution
Mix 50ml of concentrate per litre of water - one 500ml bottle makes up 10 litres of spray solution.
Before spraying
Remove any visible webbing from affected plants first so the spray reaches the mites directly rather than sitting on the webbing.
Application
Spray thoroughly over both the upper and lower leaf surfaces until the solution begins to run off the leaf tips - mites often cluster on the underside of leaves.
Frequency
Repeat treatments as needed to catch newly hatched mites, since a single spray won't affect eggs laid after application.
Technical specifications
- Format: 500ml concentrate
- Active basis: Plant extracts including garlic, saponins, and salts
- Dilution rate: 50ml per litre of water (500ml makes 10L spray solution)
- Application method: Foliar spray, covering upper and lower leaf surfaces
- Target: Spider mites - eggs, larvae, and adults
- Growth stage suitability: Safe for use at any stage of growth
Who this is for
- Growers with an active spider mite infestation who want a natural first response
- Anyone wanting to avoid synthetic acaricides on edible or smokable crops
- Growers already using biological predators such as Amblyseius californicus who need a plant-safe spray for isolated flare-ups
Best used alongside good hygiene and web removal rather than as a stand-alone fix for a heavy, established infestation.
Our take
For a natural spray, this earns its place - the garlic-and-saponin combination genuinely disrupts spider mites rather than just masking the problem, and covering all life stages matters when eggs are what keep an infestation coming back. Stay on top of repeat applications and it'll do the job.
Does exactly what it should, day in, day out, once you're spraying it consistently.
