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Common Lawn Pests

DADDY LONG LEGS
COCKSCHAFER

Unfortunately your lawn is like many other garden plants and is just as prone to getting its fair share of unwanted pests & diseases. Pests such as Leatherjackets and Chafer Grubs can cause untold damage to lawns whilst several diseases can leave your lawn requiring serious renovation and repair. Heritage Lawn can help!

Leather Jackets

Recently in Britain we have enjoyed long warm summers and warmer than average winters. These mild winters have resulted in an explosion in the population of Daddy Longlegs. These flies lay their eggs in grassed areas – usually lawns. Over the winter and spring period, the eggs hatch and the resultant larvae, called Leatherjackets, feed off the roots and young shoots of the lawn. This can have a devastating effect on a lawn. Leatherjackets are legless, brown/grey in colour and can grow up to 4cm long. Normally, a prolonged hard frost will control the number of these lawn pests, but recent mild winters have caused their number to increase dramatically!

Leather Jacket

Chafer Grub

The Chafer Grub is the larvae of the May Bug and will cause widespread damage to lawns in the late summer/ autumn. In severe cases where the roots of the turf has been eaten through and badly damaged you will be able lift your turf off the soil surface by hand.  If you notice patches of lawn browning and dying and large numbers of birds particularly larger bird varieties pecking your lawn you probably have an insect problem. Unfortunately this is not a satisfactory control method.

CHAFER GRUB

Ants

The mounds of soil the colonies create produce uneven spots in the lawn which when mown are scalped with most of the grass plant removed creating areas for weeds or moss to colonise. The mounds of fine earth should be allowed to dry out and then brushed vigorously with a heavy bristled brush to sweep the soil particles level across the lawn.

ant-colony_large

Worm Casts

Worms are very beneficial for your lawn because they naturally aerate your soil and eat decaying organic matter. The downside are the worm casts. We suggest when dry taking a stiff brush and working the soil casts into the the lawn. If required we can apply a worm suppressant to cause the surface feeding worms to move away.

Close up of worm casts on lawn at RHS Garden Wisley.

PLEASE NOTE

DUE TO A CHANGE IN EU LAW MANY PRODUCTS PREVIOUSLY USED TO MANAGE PESTS IN LAWNS ARE NO LONGER AVAILABLE. THIS YEAR WE WILL ALSO SEE WORM CONTROLS BEING REMOVED FROM USE. IF YOU HAVE A PROBLEM WITH CHAFER GRUBS OR LEATHER JACKETS NEMASYS NEMATODES ARE CURRENTLY THE ONLY AVAILABLE TREATMENT. THE BEST WAY TO PROTECT YOUR LAWN IS TO SEW MORE PEST TOLERANT SPECIES OF GRASS TO RESIST AND OR REPAIR THE DAMAGE WHICH HAS BEEN DONE.

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