FGMN Nursery
Sf Nematodes - Fungus Gnat Exterminators
Sf Nematodes - Fungus Gnat Exterminators
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Still Seeing Fungus Gnats No Matter What You Try?
Sticky traps aren’t solving it. Neem isn’t getting into the soil.
That’s because the problem isn’t flying around—it’s living underground.
Steinernema feltiae is your treatment for fungus gnat larvae, thrips pupae, and other soil-dwelling pests. These microscopic beneficial nematodes hunt through the topsoil, enter pest larvae, and release symbiotic bacteria that kill from the inside. It’s biological warfare—minus the spray bottle.
Steinernema feltiae (Easy-Release Powder)
Natural Soil Treatment for Fungus Gnats, Thrips Pupae, and Root Aphids
Once inside a host, these nematodes reproduce and spread—creating a self-sustaining population that continues working long after application. All they need is a bit of moisture and a stable temperature range.
Each application gives you rapid suppression of pests and long-term prevention. No residue. No re-entry delay. No harm to the good guys.
What It Treats
| Pest | Life Stage |
|---|---|
| Fungus gnats | Larvae (soil stage) |
| Thrips | Pupae (in substrate) |
| Root aphids | Soil-dwelling forms |
| Scarab beetles, flea beetles, weevils | Larvae and grubs |
| More | Dozens of soil-based pests |
If you’re seeing fungus gnats that keep coming back, this is how you stop the life cycle at the root.
Why Choose the Easy-Release Powder?
| Feature | Benefit |
|---|---|
| Fast action | Infective juveniles kill larvae within 2–5 days |
| Self-replicating | Reproduces underground for longer control |
| Cool-weather performance | Works in soil temps as low as 46°F |
| Quick-dissolving | Powder mixes easily for even coverage |
| Safe | No impact on plants, people, pets, or pollinators |
This is a soil-first solution for pests that sprays can’t touch.
When to Use It
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You’ve seen fungus gnats flying—but traps aren’t solving it
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You’re spotting thrips again after foliar treatment
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You’ve treated above-ground pests but still have root problems
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You want biological control with no residue
How to Apply
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Pre-water the soil to keep it evenly moist
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Mix powder into non-chlorinated water (59–69°F)
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Apply using a watering can, sprayer, or irrigation
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Water lightly again to help nematodes reach pest zones
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Keep soil lightly damp for 2 weeks post-application
Avoid full sun, dry soil, or extreme temperatures during and after application.
How Much to Use
| Use Case | Rate |
|---|---|
| Preventative or light pressure | 5 million per 300 sq. ft. |
| Moderate to heavy infestation | 5 million per 50 sq. ft. |
| Reapplication | Every 2–4 weeks if needed |
Repeat weekly if pressure is high or if conditions are ideal for gnat cycling (humid, organic-rich soil, indoor plants).
Best Conditions
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Soil temp: 46–86°F
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Moisture: Damp but not soaked (don’t flood)
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Light: Apply in early morning, evening, or on cloudy days (UV-sensitive)
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pH: Neutral to slightly acidic is ideal
Pro Tips
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Don’t overwater. Nematodes move best in moist—not saturated—soil
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Skip the sprays. Insecticides (even organic ones) can wipe them out
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Repeat as needed. They reproduce, but reapplication helps break life cycles
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Combine with above-ground predators (e.g., Orius, Swirskii, Persimilis) for full lifecycle suppression
Safe for Everything That Isn’t a Pest
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No toxicity
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No re-entry interval
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No residue
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Works in organic, regenerative, and soil-based systems
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Zero harm to pollinators, pets, beneficial insects, or soil microbes
Shipping & Storage
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Ships with live delivery guarantee
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Store at 35–50°F, refrigerated (not frozen)
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Use within 30 days
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Once mixed with water, use within 6 hours
Calculateur de quantité de terre/paillis
Calculateur de quantité de terre/paillis
Expédition & retours
Expédition & retours
EXPÉDITION:
Les produits marqués de la livraison gratuite seront livrés gratuitement à la caisse. Sinon, les frais de livraison en vrac par verge cube par camion sont le même montant, que le camion ait sa capacité minimale ou maximale. Vous souhaiterez peut-être connaître les directives suivantes :
- Un petit camion pleine capacité : 9 mètres de terre, 9 mètres de compost, 10 mètres de paillis, 5 mètres de remblai, 7 mètres de mélange d'entrepreneur.
- Capacité maximale d'un gros camion : 20 mètres de terre, 20 mètres de compost, 20 mètres de paillis, 18 mètres de remblai, 20 mètres de mélange d'entrepreneur.
La meilleure valeur est toujours une charge maximale par camion pour votre produit particulier.
Nous pouvons mélanger les chargements dans le petit camion pour amener deux produits à la fois avec 8 à 9 verges cubes maximum, selon les produits nécessaires. Vous devez nous contacter pour demander un devis dans cette circonstance.
Si vous commandez en ligne, nous vous contacterons peu de temps après l'achat pour planifier votre jour et heure de livraison. Nous pouvons souvent effectuer des livraisons le jour même avec de petites quantités de camions, appelez le 727-645-5289 ou envoyez-nous un message ici pour le savoir .
La livraison par petit camion est généralement de 1 à 3 jours ouvrables à l'avance MS et la livraison par gros camion est généralement de 2 à 6 jours ouvrables à l'avance MF. Si vous avez un jour et une heure spécifiques en tête, il est préférable d'effectuer votre achat dès que possible afin
pour vous assurer que le jour et l’heure dont vous avez besoin sont disponibles.
Les frais de livraison sont calculés lors du paiement en fonction du type de produit (poids),
quantité de produit, taille du ou des camions et nombre de camions nécessaires.
Si vous préférez communiquer directement avec un représentant pour obtenir un devis, cliquez ici .
RETOUR:
Il n'y a aucun retour une fois le produit livré. La plupart de nos fournitures de jardin en vrac pèsent entre 800 et 1 600 livres par verge cube et nécessitent des camions et des équipements lourds pour être déplacés en vrac.
REMBOURSEMENTS :
Un remboursement peut être traité si vous annulez une commande au moins 2 heures avant le début du jour et de l'heure de livraison prévus. Il n'y a aucun remboursement dans les 2 heures suivant le jour et l'heure de livraison prévus.
Dimensions
Dimensions
3'x3'x3' par verge cube
27 pieds cubes par verge cube
Let customers speak for us
Excellent communication and price. Will use them again!!!
Love this Compost! My garden does great every year and it's because of
this great Compost Mix. I would not use anything else.
Great dirt and great communication
Started a new garden and it seems to be helping all of my new starter plantings
Product was great! Ordered some seeds as part of a gift along with a gardening apron. Was a quality item, arrived quickly and it was a big hit!
Super fast service and answered all my questions!
Great service each time I used them, 3 times now.
He delivered great organic topsoil the same day. Excellent subsurface for sod. Friendly and fast, very careful during delivery.
The mulch was great. No junk in it like the bagged stuff. AsS with all outdoor projects weather is a thing. They were understanding of delays and changes.. And when the day came for delivery, there was plenty of communication and showed up on time. Plus the price was right!
I am very happy with my soil purchase! Great company to do business with! I highly recommend!
It works well. I just wish it had some residual to it so I wouldn't have to spray every few weeks.
Good and high quality, best pants from a soil company ive ever bought.
If you want a quick turn around when ordering soil, this is your guy. If you want someone to dump soil where YOU want it, this is your guy. If you want someone to sell you good soil instead of sand and broken up pallets, this is your guy. It seems weird that a guy and his wife would be so excited about dirt, I know. But we were. It’s the beginning of a big transformation for our house. So we ordered this, I think on and Saturday and surprisingly he said he could deliver it on Monday! So Monday, we woke up and literally wished each other a happy dirt day. I went to work and sure enough, he showed up on time and dumped the dirt exactly where we were hoping. And when I got home I walked over and before I could get there, you could smell the organic material in the dirt. Our plants will love this. Excellent quality. Excellent transaction. Excellent service. Couldn’t be happier.
