Nemasys ant nematodes (Steinernema feltiae) are a natural organic pest control for reducing ant populations in the garden. These ant nematodes are microscopic transparent worms that live in the soil and feed and multiply inside ant larvae they come into contact with. Unlike synthetic pest control options, these highly specific natural predators will hunt day and night to protect your home and plants from unwanted intruders while leaving other beneficial insects alone. 

How does it work?

Nemasys nematodes can be applied directly on or around ant nests, where they will begin predating on the ants, forcing them to move away. They are suitable for use on black, red and yellow ant nests.

How do I use them?

Nemasys nematodes are supplied as a dry powder, which can be mixed with water in a watering can and then applied to the area you want to treat. We advise applying them after the last frost but early in the growing season. Ideally, they should be introduced to the soil after the soil temperature is consistently 10°C or higher and adult ants have been spotted in the garden. Once applied, try to make sure that the soil doesn't completely dry out for at least 2 weeks to ensure that the nematode population remains healthy and strong.

Is it safe?

Nematodes are completely natural and prevalent in most gardens throughout the UK. Nemasys predatory nematodes are simply a more precise and effective version, which will only target the local ant population. They are designed for use where pets and other wildlife are present,

When is the best time to use Nemasys?

The best time to use these nematodes would be when the soil temperature is reliably above 10°C, usually by the end of February or March. They can be used all through the warm part of the year up until around October. Of course, if you wanted to use them in a covered environment where the temperature will not drop below 10°C, you could use them year-round.

Application Advice:

1. Dissolve the entire contents of the pack in a bucket containing 8L of water to create a solution.
2. Stir vigorously and then take 500ml of the solution and add it to a 5L watering can fitted with a coarse rose and fill with water.
3. Apply this to a nest
4. Repeat steps 2 and 3 until all of the nests have been treated

In total, you should go through 16 watering cans (80L of water) and cover 16 nests.