Nemasys Biological Garden Chafer Grub Nematode

from £31.95

Defend your lawn from Chafer Grubs with Heterorhabditis Megidis Nematodes, natural pest controllers that target grubs without harming other creatures. Easy to apply, they work hard to keep your lawn lush and green. 

Grand total

The Chafer Grub is a lawn lover’s nightmare because they can easily turn your pride and joy from a luscious green to a bald dirt patch in no time.  

The grown-up Chafer isn’t much of a problem. It’s the Chafer Grubs you have to watch. Female Chafers lay eggs in the soil of your lawn and the moment these pesky grubs hatch, they start feasting on your lawn’s roots.  

Now, the grubs are a nuisance for obvious reasons but just wait until they become fully-grown larvae – they’re massive, and much bigger than their parents! They’ll lie in the soil chomping away through the cold months until, in the spring, your lawn will be bald.  

Don’t worry though. Nature has a solution. They’re called Heterorhabditis Megidis Nematodes. 

As with all of the pest controls we offer here, these nematodes are harmless to everything – apart from the Chafer grub.  

You just mix them with water and apply it with a watering can during late summer and autumn. It is best to do it on a no- sunny day so it will not dry out straight away.  

Then these tiny little creatures will get straight to work. It’s actually the insect-pathogenic bacteria Photorhabdus which sorts out the Chafers but these nematodes are in a symbiotic relationship with this bacteria. 

As always, there will be full instructions with the packet – including asking you to refrigerate until you are ready. 

To cover around 110 square yards (100 sq. metres)

Amount/Size  Ingredient  Dosage/Description 
100 sqm pack  Heterorhabditis bacteriophora (Nematodes)  Natural nematodes used to target and kill chafer grub larvae in the soil by entering their bodies and releasing bacteria. 
1 pack (for 100 sqm)  Nematodes  Mix with water and apply to the affected area, ensuring the lawn is moist beforehand. 
Application period  Spring (April-May) & Autumn (Aug-Oct)  Apply when soil temperature is between 12°C (54°F) and 30°C (86°F) and soil is moist. 
Storage  Refrigerate  Store in the fridge and use within 2-3 weeks of receiving for maximum effectiveness. 

 

  • Application Period: Apply in early spring (April-May) or late autumn (August-October) when the soil temperature is above 12°C (54°F). 
  • Prepare Lawn: Cut the grass short and irrigate the area to be treated to ensure it’s moist before applying the nematodes. 
  • Mix with Water: Mix the nematodes with water and apply using a hose-end feeder or watering can. 
  • Even Application: Apply the nematodes evenly over the affected area, making sure to water the lawn well after application to wash them into the soil. 
  • Avoid Direct Sunlight: Apply the nematodes in the evening or during dull weather to prevent desiccation. 
  • Follow-up: Ensure the soil remains moist for at least two weeks after application for effective control. 
  • Repeat if Necessary: In case of more resistant chafer species, apply at double strength or more frequently.