Nemasys Chafer Grub Killer Extra Large

Use Nemasys Chafer Grub Killer to deal with a chafer grub infestation, without any of the precautions associated with chemical use, such as excluding children and pets from treated areas until dry or the question of what to do about grazing pets, such as rabbits and guinea pigs.

This pack contains a single application of nematodes to cover 500 sq.m. For best results apply during August, September and early October.

Orders will usually be posted on Thursday to arrive in the Friday/Saturday post. Orders may need to be ordered and dispatched earlier around public and bank holidays or during postal strikes - a notice will be posted on the front page should this be the case. You can choose a delayed delivery by selecting from the delivery options at the top of the page.

Nematodes have a life of approximately 4 weeks from dispatch.
We ship directly to you from the manufacturer to ensure you get the longest possible use by date.
You should store your nematodes in the fridge and use the whole packet in one go.
The use by date is printed on the packet.

• Use Nemasys Chafer Grub Killer to deal with a chafer grub infestation, without any of the precautions associated with chemical use, such as excluding children and pets from treated areas until dry or the question of what to do about grazing pets, such as rabbits and guinea pigs.
• Apply to moist lawns during August, September and early October. This is when the young grub larvae are active and the temperature is above 12 degrees C (54 degrees F).
• Immediately after applying the nematodes, water the grass well so the nematodes are washed into the soil to reach the roots where the chafer grubs will be. Make sure the lawn does not dry out after applying nematodes. Keep the lawn well watered for at least two weeks.
• Do not apply too late, as the grubs start to move down deeper in the soil and become inactive until the following spring. However, as this move downwards is temperature dependent, in some years it may still be alright to apply later. As long as the grubs are near the surface and the soil temperature is above 12 degrees C (54 degrees F) nematodes can still be applied.
• The nematodes (Heterorhabditis megidis) seek out the chafer grubs and attack the pest by entering natural body openings. Once inside, they release bacteria that stops the pest from feeding, quickly killing the pest. They do not stop there. The nematodes reproduce inside the dead pest and release a new generation of hungry infective nematodes, which disperse and search for further prey.

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