08/09/2021
SIGNS YOU HAVE LEATHERJACKETS (CRANE FLY LAVAE) IN YOUR LAWN
Between August and April you will probably have no idea that there are leatherjackets in your lawn. They remain underground, quietly chewing on the roots of your lawn. However, they are tiny, so the amount they eat is easily replaced by a healthy grass plant. From late April through to Early June though, they start to grow fast. And to do that they need to eat a lot. Your grass will be unable to re-grow its roots fast enough and so the grass will start to perish. You will start to see areas of yellowing grass. When you tug on the blades, the plant will come away from the soil all too easily and there will be barely any root on the bottom of the plant. Birds are another clue. If you having more feathered visitors than normal and they’re all busy scratching and pecking at the lawn, there’s a good chance they’re after eating the grubs.
HOW TO CHECK
Firstly water an area of your grass really well by thoroughly soaking it. Then place a large piece of thick black polythene over the area and hold it down with something heavy eg bricks or pot plants. Leave it overnight. In the morning, peel back the polyethene and if there are any leatherjackets lurking, you’ll see them stuck to the polythene or sitting on the surface of the lawn. One or two won’t hurt but if you see a lot of them then you’ll need to take action. Feel free to give us a call and we’ll be happy to help. Our number is 01793 625876 www.johnsongardening.co.uk