Nemaslug Slug Killer

Nemaslug controls all common species of small to medium sized slugs (up to 8 cm or 2.5-3 inches). It comes in two convenient sizes to treat small gardens and larger gardens or allotments.

One application of Nemaslug will provide approx. 300,000 nematodes for every square metre of soil, giving at least six weeks control of slugs. This is generally enough time for seedlings and bedding plants to get well established.

Slugs treated with Nemaslug will stop feeding in 3 days and die in about a week. The majority of the slugs will die underground, so don’t expect to see dead slugs lying around.


Nemaslug FAQs
Question: What is Nemaslug?
Nemaslug is a unique product, containing microscopic worms (nematodes) which seek out slugs and stop them feeding on your plants within 3 days and then kill them.

Question: Why use Nemaslug?
Nemaslug is an effective alternative to chemicals. It is safe to use and harmless to children, pets, birds and wildlife. It also works incredibly well in damp and wet conditions, which is when slugs thrive and do the most damage.

Question: How do I apply Nemaslug?
Nemaslug is applied very simply using a watering can with a coarse rose or with a hose end feeder (we sell both).

Question: When can I apply Nemaslug?
Nemaslug can be applied any time when slugs are present as long as the soil temperature is 5oC (40oF). We usually stock Nemaslug 365 days of the year, so you can continue to use Nemaslug underglass / in heated greenhouses.

Question: What will Nemaslug control?
Nemaslug will control all common species of small to medium sized slugs up to 8 cm (approx. 3 inches).

Question: How long does Nemaslug work?
One application of Nemaslug will provide at least six weeks control of slugs, we recommend that you re-apply every 6 weeks for the ultimate protection from slugs..

Question: Is Nemaslug harmful to anything else?
Nemaslug is harmless to other wildlife, pets, birds and children. Its only harmful to slugs, snails and water snails.

Question: Are any special conditions required?
Nemaslug should be applied to moist soil. If applying in hot weather it is better to wait till later in the day when the soil won’t dry out so quickly and the nematodes will have a chance to migrate under the ground during the night. Its beneficial to water it in well after application to ensure you wash all of the nematodes into the soil as they will soon die if they are on the foilage.

Question: What happens if the temperature falls after I have used Nemaslug?
The control may be a little slower. However, the nematodes are capable of surviving even the odd frost.

Question: Will Nemaslug be washed out of the soil during prolonged wet weather?
No and unlike some other slug control methods, Nemaslug continues to work well during wet weather – exactly when you need protection against slugs!

Question: Is there any benefit from applying Nemaslug in the autumn?
If you apply Nemaslug in the early autumn you will reduce the number of slugs laying eggs and consequently reduce the new population emerging in the spring.

Question: When is the best time to apply Nemaslug to protect my potatoes against slugs?
The best results are obtained by applying Nemaslug 6 to 7 weeks before harvest. This is when the tubers are most vulnerable to slug attack.

Question: Can I water Nemaslug directly on to plants?
Nematodes live in the soil so, if you can, it is better to apply to the soil. However, if because of dense foliage this is impossible, after application wash them off into the soil with some extra water.

Question: Can I eat produce that has been treated with Nemaslug?
Yes, just wash your fruit and vegetables in the normal way.

Question: Can Nemaslug kill snails?
The nematode used in Nemaslug is a mollusc killer however, nematodes live under the soil and snails tend to stay on the surface, so they don’t come into contact very often. It does have a slight effect on small snails as they remain under the soil for longer.