Q.Holly Problem
In the last 2 months, this holly has suddenly decided to go brown – all over – stalks and leaves. It is clearly dying and I have already removed one main stalk and leaves, and now a second main stalk and leaves has gone brown. Two separate, different varieties, one either side, are, so far. showing no such signs. Any info/ideas would be gratefully received! Thank syou.

Certified GKH Gardening Expert
It could be the luck of the draw with a failing transplant! It happens, sometimes. The best thing that you can do is to cut off any infected growth (not the newer, red growth, but only what is truly brown) and treat it with a fungicide.
Here are some articles that will help:
https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm