Felti - against thrips

Regular price
Felti is the natural enemy of thrips pupae in the potting soil.

Please note: If the temperature is above 25 degrees, we will send Carpo instead of Felti nematodes. This species is more vital and therefore more effective at these temperatures.

Free delivery from €20 within the Netherlands. Standard shipping costs are €2.95

Ordered before 3:00 PM on working days, shipped the same day

Package late? Do not panic! The Heroes can take a beating.

Product information

Felti are microscopic nematodes that occur naturally in Dutch soil. The small worms penetrate thrips pupae in the potting soil and secrete a bacterium that kills the thrips within 2-3 days. Felti is known as a nematode that can be used against many pests, such as mourning flies, vine beetles, leatherjackets and box tree moths.

The product is supplied in powder form. Felti nematodes can easily be dissolved in water and distributed over the potting soil with a watering can. An easy and natural way to combat thrips pupae, without harming plants, bees, birds and mammals!

1. Dosage
Assuming a houseplant with a pot of 40 cm diameter.

• 5 million is enough for 25 houseplants
• 10 million is enough for 50 houseplants
• 25 million is enough for 100 houseplants

2. When to bet
Felti works best when the soil temperature is between 10 °C and 25 °C. Do not expose to direct sunlight: apply in the evening, morning or during cloudy weather. After application, it is important to keep the soil slightly moist for another two weeks, so that the nematodes do not dry out.

3. Shelf life
It is advisable to use the nematodes as soon as possible. Do you want to keep the nematodes longer? Then store them in the refrigerator between 4 °C and 8 °C. The nematodes have a shelf life of 1 week after receipt, provided they are refrigerated. Do not store the water solution again.

4. Location
Felti can easily be applied to the potting soil of houseplants with a watering can.

5. Repeat treatment
A one-time application does not guarantee that thrips will disappear from houseplants forever. Use in combination with Carna lacewings and Irski predatory mites to tackle all stages of thrips. Multiple repeat treatments are recommended to break the life cycle.

Under optimal conditions, Felti can kill a thrips pupa within 1-2 days. In practice, the nematode will have to find the pupa first. After 1-2 weeks there are fewer thrips pupae present.

For complete control, the use of Carnegg and Irski is recommended. This also tackles the larvae and adult thrips and prevents the adult thrips from laying eggs.

Felti occurs naturally in Dutch soil. Felti is a 100% natural product. The nematodes are not harmful to people, pets, bees, birds or earthworms.


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Why Insect Heroes?


It is the most natural pest control available


They only attack the unwanted critters and leave the rest alone


See with your own eyes how nature does its work


Protect bees, butterflies and other beneficial insects

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