Slug Killer Nematodes - Phasmarhabditis hermaphrodita


What damage can Slugs cause?

Slugs can be a highly damaging pest and are particularly fond of succulent seedlings, which if left unprotected, can be completely destroyed in a single night. 

As well as attacking the leafy parts of plants, Slugs will also feast on fruit and vegetable crop. They will chew holes in ripening Strawberries and Tomatoes, and also eat Potatoes, which are of course grown underground, so you may be unaware that such crop is even being attacked.

Identifying Slug activity

If your seeds do not appear to have germinated, it is possible that Slugs have devoured the emerging seedlings underground. Other indices of recent activity may be made apparent by slime trails, or irregular holes with smooth edges found on leaves.

What are Slug Killer Nematodes and how can they help?

Dragonfli Slug Killer Nematodes are a biological molluscicide containing invective juveniles of Phasmarhabditis hermaphrodita. The Phasmarhabditis hermaphrodita are minute worm-like nematodes that are approximately 0.3 - 0.5mm long and transparent in appearance. They occur naturally in soils in areas prone with molluscs and are very active when observed under microscope. 

The nematodes, when applied, will enter the slugs via a natural opening, like the mouth, and feed on the contents of the slug. A natural bacterium is produced by the nematodes inside the slug, which kills it. Infected slugs will be completely broken down by the nematodes. The nematodes also reproduce inside the larvae, releasing more nematodes into the surrounding area. 

When should I apply these nematodes?

Slug Killer Nematodes should be applied as soon as Slugs have been identified in the soil. The best application times are from Spring to Autumn

How many nematodes do I need?

We sell Slug Killer Nematodes in two sizes to treat an area of either 40m2, or 100m2.

Each application of nematodes will provide at least six weeks control of slugs.

What conditions do the nematodes require?

Choose a humid or wet day to apply your Slug Killer Nematodes. Nematodes are UV-sensitive and will not survive long when exposed to bright, sunny conditions. Apply the nematodes early in the morning or early in the evening in order to utilise the optimum humidity levels. Avoid application in frosty conditions.

Soil temperatures should be above 5℃ for the nematodes to be active, if applying in the spring.

How do I apply my nematodes?

1. First open and empty the contents of your 30 million sachet of nematodes into a bucket or container of 2.5 litres of water and mix thoroughly.

2. Next, fill your watering can or sprayer (hand held sprayers should suffice, with filters removed - see also our AquaNemixNema Super Sprayer, or our 8/15 Litre Pump Action Sprayers for optimum nematode application) with the mixed 2.5 litres of nematode concentrate and add another 5.5 litres of water so you are left with 8 litres of nematode solution.

3. Finally, apply and spray the Slug Killer solution to moist soil in the areas you wish to treat.

The majority of the slugs will die underground, so do not be concerned if you do not see immediate evidence of dead slugs.

Repeat these instructions for an introduction of a second nematode sachet application 7 days after the first application. Repeat applications may be required for severe applications. Full instructions are provided on delivery. 

Gain complete control over Slugs and Snails by also using our Ferrimax Organic Slug Killer

Ferrimax Organic Slug Killer is a certified, environmentally friendly pellet for killing Slugs and Snails. The natural active ingredient, ferric phosphate, is harmless to wildlife, humans and the environment. Once the Slugs and Snails feed on the Ferrimax pellets, they crawl away to die.

The pellets are rain resistant, and even made more appealing to eat for Slugs after swelling up in rainfall.