Guard 'n' Aid Thrip 250ml Concentrate - Targeted Contact Spray for Thrips at Every Stage
Best for: growers with a thrip problem who need a fast-acting contact spray that covers eggs, larvae and adults.
Our thoughts
Thrips are sneaky - small, fast, and often noticed only after the silvery leaf damage is already there. This is a targeted pyrethrum-based spray rather than a generic all-rounder, and it hits eggs and larvae as well as the adults you can actually see. Get onto it early and be thorough with coverage, especially leaf undersides, since that's where thrips do most of their damage unseen.
Guard 'n' Aid Thrip is a targeted contact insecticide concentrate built around pyrethrum, extracted from the flowers of Chrysanthemum cinerariifolium, at a concentration of roughly 4.59g/L of pyrethrins carried in around 825g/L of rapeseed (canola) oil. The oil-based carrier helps the active ingredient target the respiratory and nervous systems of thrips on contact.
It controls and acts against thrips at egg, larval and adult stages, and is labelled for use on edible and non-edible crops both indoors and outdoors, including on hard surfaces where thrips and eggs can shelter between feeding sessions.
How it compares
Thrip control products range from broad-spectrum insecticides to more targeted pyrethrum sprays, and Guard 'n' Aid sits in the latter, more natural camp.
- SB Plant Invigorator is a common alternative that works through a physical/soap-based mode of action rather than pyrethrum, generally needing more frequent reapplication.
- Doff and other garden centre thrip sprays often rely on synthetic pyrethroids, which some edible crop growers prefer to avoid.
- Guard 'n' Aid's own Spider Mite formula uses the same pyrethrum/canola oil base, so growers dealing with mixed pest pressure can standardise on one active ingredient across both products.
It's a genuinely targeted, natural pyrethrum option rather than a broad-spectrum chemical spray, priced in line with the rest of the category.
Usage guidance
Dilution
Mix according to the label rate for a spray solution, matching the same general dilution approach as Guard 'n' Aid's Spider Mite concentrate (mixed with water before application, not used neat).
Timing
Spray in the early morning or evening when temperatures are cooler, for the best effect and to reduce stress on the plant.
Application
Cover the whole plant thoroughly, particularly the undersides of leaves and new growth where thrips feed and lay eggs, avoiding contact with open flowers.
Repeat treatment
Since pyrethrum breaks down fairly quickly and leaves little residual protection, repeat applications are usually needed until the population is fully under control.
Technical specifications
- Active ingredient: pyrethrins, approx. 4.59g/L
- Carrier: rapeseed (canola) oil, approx. 825.3g/L
- Volume: 250ml concentrate
- Targets: thrip eggs, larvae and adults
- Use on: edible and non-edible crops, indoors and outdoors, and hard surfaces
- Manufacturer: Guard 'n' Aid
Who this is for
- Growers spotting silvery leaf damage or visible thrips on new growth
- Anyone wanting a natural pyrethrum option over synthetic pyrethroids
- Edible and non-edible crop growers needing hard surface coverage
- Growers already using Guard 'n' Aid Spider Mite who want a matching thrip treatment
Our take
Thrip damage is often noticed too late, so having a genuinely targeted contact spray ready to go makes a real difference. This covers every life stage rather than just the adults you can see, which is exactly what stops a small problem turning into a full infestation.
Does exactly what it should, day in, day out. Worth picking up as soon as you spot the first signs of thrip damage rather than waiting for it to spread.
