
Number of beneficial insects and m²
















SF nematodes against fungus gnats, codling moths & ants
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100% natural help against fungus gnats & Co.
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From German breeding – delivered quickly
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Completely chemical-free – no residues
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Discreet, effective & biologically sustainable
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Safe for children and pets
Number of beneficial insects and m²
In stock - in 2-4 working days with you
Was unsere Kund*innen sagen
-
Wirksamkeit
kaum Wirkung teilweise wirksam sehr wirksam -
Anwendung
kompliziert etaws aufwand kinderleicht -
Lieferqualität
nicht vital brauchbar frisch & aktiv
Choose options
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100% natural help against fungus gnats & Co.
-
From German breeding – delivered quickly
-
Completely chemical-free – no residues
-
Discreet, effective & biologically sustainable
-
Safe for children and pets
Number of beneficial insects and m²
In stock - in 2-4 working days with you
Was unsere Kund*innen sagen
-
Wirksamkeit
kaum Wirkung teilweise wirksam sehr wirksam -
Anwendung
kompliziert etaws aufwand kinderleicht -
Lieferqualität
nicht vital brauchbar frisch & aktiv
-
100% natural help against fungus gnats & Co.
-
From German breeding – delivered quickly
-
Completely chemical-free – no residues
-
Discreet, effective & biologically sustainable
-
Safe for children and pets
Number of beneficial insects and m²
In stock - in 2-4 working days with you
Was unsere Kund*innen sagen
-
Wirksamkeit
kaum Wirkung teilweise wirksam sehr wirksam -
Anwendung
kompliziert etaws aufwand kinderleicht -
Lieferqualität
nicht vital brauchbar frisch & aktiv
GREEN GUARDIA Nematodes – Naturally powerful against fungus gnats, codling moths & ants
GREEN GUARDIA nematodes are microscopic threadworms that specifically attack larvae and other soil-dwelling pests. Whether it's fungus gnat larvae in a flowerpot , codling moths in the orchard , or ants in the garden path – the nematodes penetrate the pests and naturally halt their development.
It is easily applied via the irrigation water – without chemicals, without residues and completely harmless to humans, pets and beneficial insects.
Areas of application for nematodes
- Combating fungus gnats: Ideal for houseplants, potting soil or raised beds.
- Combat codling moth larvae in the soil: Targeted under fruit trees and in plant pots.
- Disturbing ant nests: Natural remedies against ants in the garden, on paths and terraces.
- Vegetable beds & potted plants: Safe use even with edible crops.
- Indoor & Outdoor: Versatile use in the house, garden or greenhouse.
Application & Tips
- Application: Stir into water and pour evenly onto soil or affected areas.
- Temperature: Soil temperatures between 10–28 °C are ideal.
- Soil moisture: Water well before and after application – nematodes need moisture.
- Repetition: In case of severe infestation, repeat application after 7–14 days.
- Avoid chemicals: Do not use pesticides to avoid harming nematodes.
- Storage: Can be stored for a maximum of 1 week at 4–8 °C in the refrigerator.
🌿 Conclusion: With GREEN GUARDIA nematodes you rely on an effective, sustainable and residue-free solution against pests in the soil – completely chemical-free and safe for the environment.
Wie viele Nematoden benötige ich?
Mit GREEN GUARDIA Nematoden bekämpfst du Trauermückenlarven effektiv und biologisch – egal ob in Blumentöpfen, Hochbeeten oder im Gewächshaus. Die Tabelle zeigt dir die passende Packungsgröße je nach Fläche, Anzahl der Pflanzen und Wasserbedarf:
Packungsgröße | Fläche | Anzahl Pflanzen | Wassermenge |
---|---|---|---|
2 Mio. | 4 m² | 20 | 2 l |
3 Mio. | 6 m² | 30 | 3 l |
4 Mio. | 8 m² | 40 | 4 l |
5 Mio. | 10 m² | 50 | 5 l |
6 Mio. | 12 m² | 60 | 6 l |
10 Mio. | 20 m² | 100 | 10 l |
15 Mio. | 30 m² | 150 | 15 l |
20 Mio. | 40 m² | 200 | 20 l |
25 Mio. | 50 m² | 250 | 25 l |
50 Mio. | 100 m² | 500 | 50 l |
Einfache Anwendung in 3 Schritten:
- Anmischen: Löse das Nematodenpulver in der empfohlenen Menge Wasser auf (siehe Tabelle).
- Ausbringen: Gieße die Lösung gleichmäßig auf befallene Pflanzen und die umliegende Erde.
- Nachsorge: Halte den Boden für mindestens 14 Tage feucht – das ist entscheidend für den Behandlungserfolg.
Geeignete Anwendungsbereiche:
- Zimmerpflanzen: Besonders effektiv bei Trauermücken in Blumentöpfen.
- Balkonkästen & Hochbeete: Sicher für Nutzpflanzen und Kräuter.
- Gewächshäuser: Nematoden wirken zuverlässig in geschützten Kulturen.
- Gartenbeete: Ideal zur Flächenbehandlung bei Larven im Boden.
- Überall dort, wo Trauermücken auftreten!
🌱 Gut zu wissen: Die natürliche Bekämpfung mit GREEN GUARDIA Nematoden ist rückstandsfrei, bienenfreundlich und für Menschen und Haustiere unbedenklich.
Was sind Trauermücken?
Trauermücken sind kleine, schwarze Fliegen, die häufig in Blumenerde von Zimmerpflanzen, Anzuchtgefäßen und Gewächshäusern auftreten. Die adulten Tiere sind harmlos, doch ihre Larven fressen an Pflanzenwurzeln und schwächen dadurch besonders junge oder empfindliche Pflanzen.
Ein Befall macht sich meist durch kleine Fliegen bemerkbar, die beim Gießen oder Bewegen der Pflanzen aufwirbeln. Besonders feuchte Erde zieht die Schädlinge an – dort legen sie ihre Eier ab.
Wie kann ich einem Befall mit Trauermücken vorbeugen?
- Staunässe vermeiden: Gieße nur, wenn die oberste Erdschicht trocken ist. Trauermücken bevorzugen dauerhaft feuchte Erde.
- Pflanzen regelmäßig kontrollieren: Achte auf auffliegende Fliegen beim Gießen sowie auf schleimige Stellen in der Erde.
- Gelbtafeln einsetzen: Die erwachsenen Trauermücken werden von Gelb angelockt und bleiben kleben – so kannst du sie überwachen und reduzieren.
- Nematoden ausbringen: Mit GREEN GUARDIA Nematoden (z. B. Steinernema feltiae) bekämpfst du die Larven gezielt in der Erde – ganz ohne Chemie.
- Blumenerde abdecken: Eine Schicht aus Sand, Vermiculit oder feinem Kies verhindert, dass die Fliegen ihre Eier ablegen können.
- Topferde wechseln: Bei starkem Befall hilft es, die befallene Erde vollständig zu entfernen und durch frische, sterilisierte Erde zu ersetzen.
🌿 Tipp: Setze bei ersten Anzeichen direkt Nematoden gegen Trauermücken ein, um eine Massenvermehrung der Larven zu verhindern. Eine frühzeitige Anwendung spart dir spätere Schäden an Wurzeln und Pflanzen.
German breeding
Beneficial insects from controlled German breeding – quality you can rely on
Expert advice
Application tips and support from our experts – targeted and effective.
Quick help
Our beneficial insects are ready for immediate use and provide targeted help in the event of acute infestation in the house or garden.
Natural & safe
Safe for everyday use – absolutely risk-free for children, pets and plants.
Wir lassen unsere Kund:innen sprechen.

Natural pest control
At GREEN GUARDIA you will find the right natural solution for every pest problem – completely without chemicals.
Whether parasitic wasps against moths, predatory mites against spider mites or nematodes against fungus gnats and snails – our beneficial insects provide reliable help in the house, garden or greenhouse.
As specialists in biological pest control, we stand for quality, innovation and sustainable impact – in harmony with nature, people and animals.

Expert advice – Personal & practical
Our expert advisors will support you with targeted application tips and many years of experience in natural pest control. Whether you have questions about application, combining different beneficial organisms, or selecting the right product – we'll help you quickly and competently.
FAQ Nematodes
Do you have questions about our products, their use, or shipping? Here you'll find the most important answers at a glance. If anything remains unclear, please feel free to contact us!

Nematodes are microscopically small roundworms that specifically combat soil-dwelling pests such as fungus gnat larvae, black vine weevils or grubs.
Depending on the species, nematodes control, among other things, fungus gnat larvae, black vine weevils, grubs, mole crickets, garden chafer larvae, ants, flea beetles, snails and meadow crane flies.
No, nematodes are completely harmless to humans, pets, and plants. They specialize in specific pests and cause no harm.
The nematodes actively penetrate the pest larvae and release bacteria that kill the pest. The nematodes then multiply in the dead larvae.
The first effects usually appear after about 5–7 days. Complete control takes up to 3 weeks, depending on the pest and the severity of the infestation.
Yes, nematodes can be used regularly in vulnerable areas to prevent pests, especially if there are recurring problems with fungus gnats or grubs.
Nematodes are proving to be more resistant to heat than often assumed. Thanks to secure shipping packaging, our SF nematodes can easily survive unrefrigerated shipping for up to a week, even during the summer months. Therefore, we rely on environmentally friendly delivery without cooling pads and unnecessary packaging waste.
The nematodes will be delivered directly to your mailbox in an envelope . Even for orders containing other products, we ship our nematodes in a separate envelope. This ensures fast and secure delivery. For this reason, unfortunately, the nematodes cannot be delivered to packing stations .
Yes, ideally, nematodes should be applied immediately upon receipt. They can be stored in a refrigerator at 4–8°C for a few days (see packaging).
Our nematodes are enriched with a biological substrate that sometimes changes shape during transport and due to temperature fluctuations. This may make them appear mushy or clumpy, but they are still perfectly normal and fully functional .
If you add the product to water and stir well, you will notice that everything dissolves well and can be used without any problems.
Live beneficial insects are non-returnable. However, we're happy to help you with any problems.
Shipping information
- Fresh shipping: Orders from Monday to Thursday are shipped fresh daily.
- Weekend orders: Orders placed after 9am on Thursday will be shipped the following Monday to ensure the freshest beneficial insects.
The nematodes are mixed with water and applied to the affected areas using a watering can or a spray system. The soil should be thoroughly moistened beforehand.
One application is usually sufficient. In cases of severe infestation or recurrence, a second application can be performed after approximately two weeks.
Nematodes require soil temperatures between 12–25 °C and a consistently moist environment – at least for several hours after application.
Nematodes are suitable for use in flowerpots, beds, lawns and greenhouses – both indoors and outdoors.
After controlling their host larvae, the nematodes slowly die when no new pests are present.
Yes, nematodes can be combined with other beneficial organisms such as predatory mites or parasitic wasps, as long as their habitats do not overlap.
Please contact us directly with a photo of the delivery and your order number.
Yes, each shipment includes instructions on how to download it digitally from our website.
Yes, our nematodes can also be used to treat pest infestations on crops such as vegetables. They are completely harmless to humans and pose no health risk , even if accidentally ingested.
No, our nematodes cannot be overdosed . They control pests until there are no more hosts, and then die off on their own. The exact application rates are listed in our digital instructions.
Yes, nematodes are a recognized means of biological pest control and are suitable for organic farming.
The clay powder or gel is harmless and can be easily spread in the garden or disposed of in the household waste.