Number of beneficial insects and m²
HB nematodes against black vine weevils and grubs
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100% natural help for black vine weevils & 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 for black vine weevils & 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 for black vine weevils & 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 HB-Nematodes – Biological help against black vine weevils and grubs
Vine weevils, grubs, and other soil-dwelling pests can cause massive damage in gardens and plant containers – especially to the roots of ornamental plants, fruit trees, and perennials. Our HB nematodes (Heterorhabditis bacteriophora) specifically penetrate the larvae of these pests and interrupt their development cycle – completely without chemicals.
It is simply applied via the irrigation water and is residue-free, safe for beneficial insects, humans and pets – ideal for organic gardening.
Areas of application for HB nematodes
- Vine weevil larvae: Particularly under rhododendrons, cherry laurel, hydrangeas & Co.
- Grubs in the lawn: Early application prevents damage to grasses.
- Beds & plant pots: Protects sensitive roots permanently and reliably.
- Fruit and ornamental gardens: Sustainable protection even in mixed crops and perennial beds.
- Raised beds & greenhouses: Safe use in protected systems.
Application & Tips
- Mixing: Stir the nematode powder thoroughly into water.
- Application: Pour the solution evenly over the affected areas – especially around plant stems and roots.
- Moisture: Keep the soil consistently moist for 1–2 weeks to ensure nematode mobility.
- Optimal soil temperature: 12–28 °C
- Do not use chemicals: Avoid pesticides before and after use.
- Storage: Keep refrigerated at 4–8 °C for a maximum of 1 week.
- Repetition: In case of severe infestation, reapply after 10–14 days.
🌿 Conclusion: GREEN GUARDIA HB nematodes are your effective and environmentally friendly solution against black vine weevils and grubs – sustainable, safe and easy to use.
Dickmaulrüssler & Engerlinge natürlich bekämpfen – mit GREEN GUARDIA HB-Nematoden
Dickmaulrüssler, Gartenlaubkäfer und andere Engerlinge fressen an Wurzeln von Zier- und Nutzpflanzen – mit spürbaren Folgen: Welkeerscheinungen, Wachstumsstörungen oder komplette Pflanzenausfälle. Unsere HB-Nematoden (Heterorhabditis bacteriophora) gehen gezielt gegen die Larven im Boden vor – biologisch, rückstandsfrei und sicher für Mensch, Tier und Umwelt.
Die Anwendung ist kinderleicht: Einfach in Wasser auflösen und mit der Gießkanne oder einem Sprüher ausbringen. Ideal für Rasen, Beete, Pflanzkübel und mehr.
Wie viele HB-Nematoden benötige ich?
Wähle die passende Packungsgröße entsprechend deiner Fläche:
Anwendung – einfach & effektiv
- Anmischen: Löse das Nematodenpulver vollständig in der passenden Wassermenge auf.
- Ausbringen: Gieße die Lösung auf die befallenen Flächen – besonders unter gefährdeten Pflanzen und an Rasenrändern.
- Nachsorge: Halte den Boden für mindestens 2 Wochen feucht – das sichert die optimale Wirkung der Nematoden.
Einsatzbereiche für HB-Nematoden
- Rasenflächen: Gegen Larven von Gartenlaubkäfer, Junikäfer & Co.
- Pflanzkübel & Balkonkästen: Bekämpfung von Dickmaulrüsslerlarven direkt an Wurzeln.
- Beete & Ziergärten: Besonders geeignet bei anfälligen Pflanzen wie Rhododendren, Erdbeeren oder Kirschlorbeer.
- Hochbeete & Gewächshaus: Sicher & rückstandsfrei – auch bei Gemüseanbau.
- Ökologischer Gartenbau: 100 % natürlich – keine Gefahr für Bienen oder Nützlinge.
🌱 Tipp: Bringe HB-Nematoden bei Bodentemperaturen von mindestens 12 °C aus – optimal im Frühjahr oder Spätsommer. Eine Wiederholung nach 2 Wochen erhöht die Erfolgsrate bei starkem Befall.
Dickmaulrüssler & Engerlinge natürlich bekämpfen – mit GREEN GUARDIA Nematoden
Dickmaulrüssler und Engerlinge gehören zu den gefährlichsten Schädlingen im Boden. Ihre Larven fressen Wurzeln von Zierpflanzen, Erdbeeren, Rosen und Rasen – oft unbemerkt. Mit unseren SC-Nematoden (Steinernema carpocapsae) stoppst du die Entwicklung der Schädlinge biologisch, effektiv und ohne Chemie.
Was sind Dickmaulrüssler und Engerlinge?
- Dickmaulrüssler: Nachtaktive Käfer, deren Larven massive Wurzelschäden an Zierpflanzen, Rhododendren und Erdbeeren verursachen.
- Engerlinge: Larven verschiedener Käferarten (z. B. Mai- und Junikäfer), die tief im Boden leben und Graswurzeln sowie Pflanzwurzeln fressen – häufig erkennbar an braunen Flecken im Rasen.
Wie kann ich einem Befall vorbeugen?
- Regelmäßige Bodenkontrolle: Besonders unter Zierpflanzen und im Rasen auf Larven prüfen.
- Gartenpflege: Rasen lüften, Mulch nicht zu dick auftragen, Staunässe vermeiden.
- Nützlinge fördern: Laufkäfer, Igel und Vögel sind natürliche Feinde der Larven.
- Frühzeitig handeln: Bei ersten Anzeichen im Frühjahr oder Spätsommer Nematoden einsetzen.
- GREEN GUARDIA SC-Nematoden: Die biologische Lösung zur gezielten Bekämpfung – sicher für Menschen, Haustiere und Umwelt.
🌿 Tipp: Die beste Wirkung erzielst du bei Bodentemperaturen ab 12 °C. Halte den Boden nach der Anwendung konstant feucht, damit die Nematoden optimal arbeiten 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.