Chafer Grubs

They attack grass roots. Grass growth slows and yellow patches appear. Grass is easily pulled up, with little or no root growth.

Wildlife, such as foxes and badgers, can also create a lot of damage as they dig up your lawn in search of grubs for food.

Rooks, magpies, crows and woodpeckers feeding on your lawn are a good sign of a chafer grub infestation.

Chafer beetles emerge from the lawn. They lay their eggs, which hatch into grubs feeding on the grass roots before burrowing deep into the ground. They then lie dormant deep in the soil before moving to the surface in the spring to emerge as beetles again.

There is no chemical control for chafer grubs.

If the chafer's life cycle is not broken re-infestation occurs and the problem gets progressively worse.

Use Nemasys Chafer grub Killer to deal with a chafer grub infestation

Go to www.chafersurvey.co.uk to take part in a survey to identify where chafer grub hotspots are found in the UK. 

Chafer Grub Killer

Apply to moist lawns during August and early September. This is when the young grub larvae are active and the temperature is above 12ºC (54ºF).

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 later than September, since the grubs start to move down deeper in the soil and become inactive until the following spring.

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.