Help needed please with laurel hedge issues...
Firstly just to say I am about the furthest thing from a gardener you could possibly think of, so please excuse my ignorance.
We had a line of 20 6-7ft Laurel hedge plants put in in February. They are purely for privacy and the aim is maximum growth asap, to about 8-9 ft and thick.
The soil was excavated 2ft deep and a vast quantity of grab-bagged topsoil put in so should be plenty and good quality. The plants were pot grown (at least they arrived in pots and I'm told were good strong healthy mature plants with compost already in the pots.
Within the first few weeks of being planted they had shedded at least half of their leaves. An unbelievable amount came off and some stems are now totally bare form being rather bushy. It was extremely windy during that period. They have continued to shed since, but at a much slower rate, and seem to have stabilised now (2 months).
However some plants have yellowing leaves, some have holey leaves, some have weird brown growths on them, and some have what I assume from Googling is Vine Weevil.
I'm not sure if they are under or over watered.. The soil is quite free draining by the looks of it, and doesn't seem dry or waterlogged to me. It is in Lancashire if that matters.
I'd be eternally grateful for some advice on what (if any) issues I have, and how best to go about treating it. I'm due (on the planters advice) to chop the top 6" off each stem at the weekend, unless advised otherwise. Would be happy to invest in any plant food etc if it will help. They don't look like they are dying to me, just struggling a bit for whatever reason.