nematop® contains nematodes of the species Heterorhabditis bacteriophora for the biological control of black vine weevil larvae.


No chemicals and no microplastics - absolutely harmless for humans and pets.


The pests cannot develop resistance to biological control.


As the only manufacturer in Germany, we have been producing nematodes on a large scale for over 25 years.

Product information "nematop®"
Control the larvae of the black vine weevil biologically, effectively and sustainably with nematodes of the species Heterohabditis bacteriophora.


The package contains 5 million nematodes and is sufficient for an application area of 10 m².

Application time

nematop® can be applied as soon as soil temperatures reach at least 12°C for several hours a day. Overwintered larvae of the black vine weevil can be controlled in April / May. Fresh larvae and pupae can be controlled in August / September.

Damage caused by black vine weevil and its larvae.

The black vine weevil is one of the most important pests in gardens and roof gardens. Its larvae feed especially on the roots of plants, which can cause wilting and eventual death. The adult beetles feed primarily on the leaf edges of the affected plants, resulting in the typical and unsightly "bay feeding".

What plants are affected by the black vine weevil?

  • Rhododendron
  • Yew
  • Lilac
  • Azaleas
  • Cotoneaster
  • Ivy
  • Privet
  • Cherry laurel
  • Roses
  • Berry fruits (strawberries, blueberries, etc.)

Advantages of nematop®

  • 100% biological
  • Lasting effect
  • No formation of resistance
  • No microplastics
  • High effectiveness
  • Nematodes directly from the manufacturer
  • Harmless for humans and pets


Control black vine weevil with nematodes

The nematode species Heterorhabditis bacteriophora and Heterorhabditis downesi are specialized on black vine weevil larvae, among others, and can use them for their own feeding and reproduction. The nematodes are supplied alive in a powder. For application, they should be mixed with water exactly according to package directions and applied to the affected areas.

How do nematodes work?

Nematodes are threadworms about 0.5 mm long, of which there are over 20,000 different species worldwide. The species Heterohabditis bacteriophora specializes in controlling the larvae of black vine weevil and is particularly effective. The nematodes penetrate the pests, where they secrete a bacterium with which they live in symbiosis. The bacterium kills the pest and the nematodes multiply inside it until it is consumed. The nematodes then move on to infest the next pest. This process repeats until all pests are controlled. This results in a lasting, biological pest control.

e-nema nematoden shop

About e-nema

We have been producing various nematode species on an industrial scale for over 25 years. We rely on the highest production standards and qualified employees from over 16 countries. What started in 1997 as a spin-off from the University of Kiel has now developed into a globally recognized medium-sized company with over 70 employees. E-nema stands for innovation and expertise in the field of nematode research and production. Our products are used in countries all over the world in a wide range of applications. From the professional mushroom grower to the passionate hobby gardener.