Garden lawns are at significant risk this autumn

With autumn on the doorstep garden lawns are under threat from subterranean terrorists.

At this time of year the chafer grubs and leatherjackets that have been growing below ground since emerging from their eggs in late July, are working their way towards the surface of the lawn to begin their brief adult lives.

This is a piece of knowledge shared by a range of animals and birds – predominantly badgers, foxes, crows, jackdaws and magpies – and as soon as they detect movement below ground they begin to dig up and roll back the grass to expose their favourite snacks.

The only realistic way of stemming this potential damage to lawns is to kill the larvae of the pests underground using nematodes.  The two different nematodes used in BASF’s Nemasys Leatherjacket Killer and Nemasys Chafer Grub Killer go below ground to seek out their prey and, as the product name says, kill them.

“Lawns and other green spaces can be totally devastated as the animals and birds tear up the grass.   This can range in size from comparatively small areas to pieces of land the size of half a cricket pitch,” says Gavin Wood; business development & key account manager nematodes.

The most effective treatments are Nemasys Biological chafer grub killer and Nemasys Biological leatherjacket killer from BASF Lawn and Garden.  Both use nematodes to attack and kill the larvae and are compatible with organic gardening.   These naturally occurring microscopic animals are specially bred for pest control as BASF’s state-of-the-art facility at Littlehampton in Sussex.  They enter the larvae through natural openings and, once inside, kill them.

Both products are applied by mixing with water either using a watering can or a hose feed.  To ensure the lawn stays free of marauding corvids, foxes and badgers the Nemasys treatment should begin in early August and for more effective control, two treatments two to four weeks apart should be applied.  It is important to water the treated area thoroughly immediately after each application and keep the area moist for at least two weeks.  BASF recommends that the grass is cut before each treatment.


BASF has the largest specialist nematode growing facility in the EU – and the only one in Britain – growing trillions of beneficial nematodes for use in their Nemasys range of pest controls.

Recently, BASF created ‘virtual tour’ videos designed to reveal the wonderful world of nematodes. Taken inside its high-tech facility in Sussex, the three videos entitled, ‘How do Nematodes work?’, ‘The BASF Factory Tour’, and ‘Why Choose Nemasys and Nemaslug’ can be viewed below.

How do Nematodes work?

BASF Factory Tour

Why choose Nemasys and Nemaslug?

You can follow Nemasys on Twitter @BASF_Nemasys_UK and find them on Facebook by searching for @BASF.Nemasys.UK

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