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100% natural help for snails
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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
Available for you again soon
Was unsere Kund*innen sagen
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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 for snails
-
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
Available for you again soon
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 for snails
-
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
Available for you again soon
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 against snails – biological protection for gardens and raised beds
Slugs and other snail species often cause significant damage in vegetable patches, young plants, or raised beds. Our GREEN GUARDIA snail nematodes actively penetrate young snails and their larvae, preventing their development – without the use of chemicals or residues .
It is easily applied via irrigation water and is harmless to humans, pets, and beneficial insects . It is ideal for natural snail control in organic gardening .
Suitable areas of application
- Vegetable beds & herb areas: Particularly effective against young animals in the soil.
- Raised beds & plant pots: Effective against hidden snail nests in substrates.
- Perennials & young plants: Protects sensitive seedlings from snail damage.
- Greenhouses & cold frames: Safe use with consistent temperatures.
- Lawns and flowerbeds: Prevents snail damage to fresh shoots.
How the application works
- Mixing: Carefully dissolve the nematode powder in the recommended amount of water.
- Application: Pour the solution evenly onto the affected areas, especially around plant stems and beds.
- Moisture: Keep the soil moist for at least 1–2 weeks – this ensures optimal mobility and effectiveness of the nematodes.
Important instructions
- Temperature: Effective at soil temperatures between 12 °C and 25 °C.
- Avoid chemicals: Do not use pesticides before or after application.
- Storage: Store in a cool place at 4–8°C and consume within 7 days.
- Repetition: In case of severe infestation, reapply after 10–14 days.
🐌 Tip: Apply the nematodes in the early morning or evening – this way the soil stays moist longer and the effect is maximized.
Schneckenlarven im Boden natürlich bekämpfen – mit GREEN GUARDIA Nematoden
Schnecken, insbesondere Ackerschnecken und andere bodenlebende Arten, richten bereits als Larven im Boden große Schäden an. Sie fressen Wurzeln, Keimlinge und junge Pflanzen – mit Folgen wie Wachstumsstörungen, Kümmerwuchs oder Ausfällen im Gemüsebeet.
Die GREEN GUARDIA HB-Nematoden (Heterorhabditis bacteriophora) sind effektive, mikroskopisch kleine Helfer, die Schneckenlarven gezielt parasitieren – ganz ohne Chemie, Rückstände oder Risiko für Umwelt und Nützlinge.
Wie viele Nematoden benötige ich?
Wähle die passende Packungsgröße für deine Fläche – die folgende Übersicht hilft dir bei der Dosierung:
Anwendung – einfach & effektiv
- Anmischen: Löse das Nematodenpulver vollständig in der angegebenen Wassermenge auf.
- Ausbringen: Gieße die Lösung mit Gießkanne oder Sprühsystem auf betroffene Flächen.
- Nachsorge: Halte den Boden für mindestens zwei Wochen gleichmäßig feucht – so bleiben die Nematoden aktiv und wirksam.
Geeignete Einsatzbereiche für Nematoden gegen Schneckenlarven
- Gemüsebeet & Kräuterbeet: Besonders bei Salat, Spinat, Erdbeeren oder Kohlarten sinnvoll.
- Rasen & Blumenbeete: Wirksam gegen unterirdisch lebende Schneckenlarven.
- Hochbeete & Pflanzkübel: Sicher auch bei essbaren Pflanzen.
- Gewächshaus: Effektiv auch in geschlossenen Systemen ohne Chemieeinsatz.
- Ökologischer Gartenbau: Keine Rückstände, kein Risiko für Nützlinge, Haustiere oder Kinder.
🐌 Tipp: Bringe Nematoden gegen Schneckenlarven idealerweise im Frühling oder Spätsommer bei Bodentemperaturen ab 12 °C aus. Wiederhole die Anwendung nach 14 Tagen bei starkem Befall.
Schnecken biologisch bekämpfen – mit GREEN GUARDIA Nematoden
Schnecken zählen zu den gefürchtetsten Schädlingen im Garten – besonders gefährlich für zarte Jungpflanzen, Salat, Erdbeeren und Gemüse. Mit unseren Nematoden setzt du auf eine natürliche und effektive Lösung, ganz ohne Gift und Rückstände.
Was sind Nematoden und wie wirken sie?
Nematoden sind mikroskopisch kleine Fadenwürmer, die gezielt in die Schnecken eindringen und diese innerhalb weniger Tage abtöten. Besonders wirksam sind sie gegen junge Nacktschnecken im Boden, bevor sie an die Oberfläche kommen.
- Wirkung: Nematoden dringen durch Körperöffnungen in die Schnecke ein und setzen ein natürliches Bakterium frei – die Schnecke stirbt innerhalb weniger Tage.
- Zielgruppe: Besonders effektiv gegen kleine bis mittelgroße Nacktschnecken (v. a. Arion-Arten)
- Umweltfreundlich: Keine Gefahr für Regenwürmer, Haustiere oder andere Nützlinge.
Wie kann ich einem Schneckenbefall vorbeugen?
- Beete trocken halten: Besonders morgens gießen und Staunässe vermeiden.
- Schneckenverstecke entfernen: Bretter, Töpfe und Steine regelmäßig kontrollieren.
- Barrieren nutzen: Schneckenzäune oder raue Materialien rund ums Beet.
- Frühzeitiger Nematodeneinsatz: Bereits im Frühjahr oder Spätsommer bei ersten Schneckenaktivitäten.
- GREEN GUARDIA Nematoden: Die biologische Antwort auf Schneckenplagen – sicher & nachhaltig.
🌿 Tipp: Wende die Nematoden bei feuchtem Wetter oder nach dem Regen an. Halte den Boden danach für mindestens eine Woche feucht, damit die Nützlinge aktiv bleiben und ihre volle Wirkung entfalten können.
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.