HB nematodes against black vine weevils and grubs
HB nematodes against black vine weevils and grubs
HB nematodes against black vine weevils and grubs
HB nematodes against black vine weevils and grubs
HB nematodes against black vine weevils and grubs
HB nematodes against black vine weevils and grubs
HB nematodes against black vine weevils and grubs

HB nematodes against black vine weevils and grubs

€11,99
€1,20 /m2

  • 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

Quantity:

In stock - in 2-4 working days with you

PayPal Mastercard Visa American Express Klarna Apple Pay

Was unsere Kund*innen sagen

  • Wirksamkeit

    kaum Wirkung teilweise wirksam sehr wirksam

  • Anwendung

    kompliziert etaws aufwand kinderleicht

  • Lieferqualität

    nicht vital brauchbar frisch & aktiv

Lieferoption wählen & clever sparen:

Einzellieferung - ohne Abo
Für dauerhaft starke Pflanzen – automatisch geliefert.
10% Rabatt

10% Rabatt

spare 10% auf alle Lieferungen

Kostenlose Lieferung

Kostenlose Lieferung

Spare Dir die Versandkosten

Flexibles Abo

Flexibles Abo

Bestelldatum ändern, Lieferung überspringen, Intervall anpassen oder Abo kündigen

Wähle hier das individuell passende Abo – je nach Befallsgrad deiner Pflanzen.

GREEN GUARDIA HB nematodes – Biological help against vine weevils & grubs

Vine weevils, grubs and other soil-dwelling pests They can cause considerable damage in gardens and plant containers – especially to the roots of ornamental plants, perennials, and fruit trees. HB nematodes (Heterorhabditis bacteriophora) They specifically penetrate the larvae of these pests and interrupt their development cycle – completely without chemicals.

The application is simply done via the watering water and is residue-free and harmless to beneficial insects, humans and pets – ideal for organic gardening.

Applications for HB nematodes

  • Vine weevil larvae: Particularly effective under rhododendrons, cherry laurels, hydrangeas, etc.
  • Grubs in the lawn: Early intervention prevents visible damage from feeding.
  • Flower beds & planters: Reliably protects sensitive roots.
  • Fruit and ornamental gardens: Sustainable protection even in mixed cultures.
  • Raised beds & greenhouses: Safe use in protected systems.

Application & Tips

  1. Mixing: Thoroughly stir nematode powder into water.
  2. Application: Pour the solution evenly onto the affected areas and the root zone.
  3. Moisture: Keep the soil evenly moist for 1–2 weeks.
  • Optimal soil temperature: 12–28 °C
  • No chemicals: Avoid using pesticides before and after application.
  • Storage: Store in a cool place at 4–8 °C, maximum shelf life of 1 week.
  • Repetition: In case of severe infestation, reapply after 10–14 days.

🌿 Conclusion: GREEN GUARDIA HB nematodes are a effective, environmentally friendly solution against vine weevils and grubs – sustainable, safe and easy to use.

  • 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.

We let our customers speak.

See what others have to say about us
450,000+ CUSTOMERS LOVE US

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!

FAQs

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.