Hi all, I’m looking to lay new turf in my back garden (36m2) as the current turf is not looking great, it will also allow me to level it as it has a bit of a slope, take out any big stones and put down some compost/topsoil/fertiliser etc. However, my garden is also infested with leatherjackets, I can dig out a small area with the trowel and easily pick out up to 10 of them all over the lawn. I’ve known that they’ve been present for the last 2 years, but they were much smaller in number and with overseeding didn’t seem to be causing any issues unlike now with huge bare spots. I know there is a treatment available, however I’m wondering, considering I’m going to be digging out my current turf, how deep do they burrow? Say if I was dig to 3 inches to remove the current turf, would most/all of them be within this depth? Just don’t want to lay new turf for it to be eaten by the current population of leatherjackets. Any help would be appreciated. Thanks in advance.