Dual Nematodes (Steinernema Feltiae & Steinernema Carpocapsae) x 10 Million - Biological Pest Control for Thrips, Caterpillars and Root Flies
Best for: Growers who want a chemical-free way to knock down thrips, caterpillars, sciarid/root flies and other soil and foliage pests without harming pets, kids or pollinators.
Our thoughts
This is proper biological pest control, not a gimmick, it's the same active nematode blend sold under the Nemasys Fruit and Veg name, just packaged for growers. We like that it covers pests in both the soil and on the foliage in one application, which most single-species nematode products don't. Handle it like the living product it is, cool storage, use promptly, and it does exactly what it should.
This is a blend of two beneficial nematode species, Steinernema feltiae and Steinernema carpocapsae, supplied by Fargro at a count of 10 million per pack. Nematodes are microscopic parasitic worms that actively seek out pest larvae in the growing medium and on plant surfaces. Once they locate a host, such as a thrips pupa, caterpillar or root fly larva, they enter the body and release a bacterium that kills it within a few days.
Because the pack combines two species, it covers pests that live in different places. S. feltiae is more effective against soil-dwelling stages like fungus gnat and root fly larvae, while S. carpocapsae is better suited to surface and foliar pests like caterpillars and thrips pupae dropping to the soil surface. As the nematodes reproduce inside their hosts, later generations continue hunting for pests, giving several weeks of ongoing protection from a single application. The product is sold under the well-known Nemasys Fruit and Veg name and is safe around pets, children, birds, bees and other wildlife.
How it compares
Nematode drenches like this sit firmly in the biological control camp, as an alternative to spray pesticides.
- Covers a wider range of pests in one pack than single-species nematode products aimed at just slugs (Nemaslug) or just vine weevil.
- Compared with chemical pesticides, it leaves no chemical residue and won't harm beneficial insects, pets or pollinators.
- Compared with predatory mites such as Amblyseius cucumeris for thrips, nematodes work in the soil as well as on foliage, giving broader coverage from one product.
If you want pest control that doesn't come with residue warnings or re-entry intervals, this is the more flexible biological option.
Usage guidance
Nematodes are a living product, so storage and application timing matter.
Storage
Keep refrigerated, around 2-6°C, until use and apply as soon as possible after the pack arrives, nematode viability drops the longer they sit unused.
Mixing
Dissolve the pack in water following the rate on the packaging, then apply with a watering can or sprayer with the filter removed to avoid straining out the nematodes.
Application
Apply to moist soil or growing medium and to the foliage where relevant, ideally in the early morning or evening when temperatures are cooler and UV is lower, since nematodes are sensitive to direct sun.
Repeat treatment
For heavier infestations, a repeat application 1-2 weeks later helps target pests that were at an unsusceptible life stage during the first treatment.
Technical specifications
- Species: Steinernema feltiae and Steinernema carpocapsae (combined pack)
- Nematode count: 10 million
- Target pests: Thrips, caterpillars, sciarid/root flies and other soil and foliage larvae
- Also sold as: Nemasys Fruit and Veg
- Protection window: Up to 6 weeks per application
- Application method: Soil drench and foliar application
- Safety profile: Safe for pets, children, birds, bees and other wildlife
- Storage: Refrigerate and use promptly on arrival
Who this is for
- Growers dealing with thrips, caterpillars or root fly/fungus gnat larvae who want to avoid chemical sprays
- Anyone growing edibles where pesticide residue is a concern
- Pet owners and households with children who want pest control that's genuinely safe around them
- Growers who've had partial results from single-species nematode products and want broader pest coverage
Our take
This is a straightforward, well-proven biological control option rather than anything experimental, it's the same active nematodes sold under the Nemasys name, just at a keener price. Treat it as a living product, store it properly and use it promptly, and it works reliably against a genuinely wide spread of common pests.
Does exactly what it should, day in, day out, for anyone who wants pest control without the chemicals. Worth having in the fridge before an infestation gets out of hand.
