Birds ripping up your lawn? Lawn with dead patches? Use nematodes to control the real culprit: leatherjackets (Image is 100m2 but this is for 500m2!)
If your lawn is being ripped up by birds, foxes or badgers it is usually because there are ‘tasty’ leatherjackets or chafer grubs beneath it ! The classic symptoms you may also see are slow grass growth, often with yellow patches and, as there are few roots left on the grass, it is also easily pulled up.
Check which pest you have by lifting a piece of damaged turf :
If you have leatherjackets then you need this biocontrol, ‘Leather Jacket Killer’ . Leatherjackets are about 25mm (1in) long greyish black, almost tubular and somewhat transparent and are the larval stage of craneflies or daddy-longlegs. These generally start to appear towards the end of August and within days they lay eggs, these hatching within two weeks, the resulting grubs starting to feed on the grass roots.
If you have Chafer Grubs you need a different product, ‘Chafer Grub Killer’ : Chafer grubs are a creamy colour, about 15mm long and with a distinct and sizeable head. The beetles emerge from lawns and lay eggs which then hatch into the grubs.
…….if you find both pests, then you’ll need both treatments to get proper control.
Generally for use from mid- August until October, (but see note above!) to control leatherjackets, the larvae of crane flies (daddy-longlegs) .
**NB heavy or early infestations or areas where leatherjackets were a problem in the previous year, treat in April as well as August onwards. When treating in April the nematodes need to be applied at double the autumn rate as the pests are harder to kill earlier in the year**
Contains 250 million naturally occurring beneficial nematodes and must be kept refrigerated, and used before the expiry date printed on the pack.
Treats up to 500m2 so suitable for larger lawns or areas of grass land.