and part of that process is a controlled loss of leaves, and it needs to withdraw some of the valuable chemicals and sugars back into the tree before it loses them. covid has meant a cap on numbers here at stourhead, and at properties and gardens across the trust's estates. it'll mean a fall in revenue of around £200 million. and there is another disease causing major problems. ash dieback is ravaging ash trees throughout the uk. we are climbing again, this time using the 205 steps inside king alfred's tower to give us a bird's eye view of the forest. oh, you can see forever! you can. if we look outside of the tower you can see the effect it is having to the surrounding landscape. i don't think it's going to be particularly devastating to the garden. but where it will make a big difference is on our tenant farms. for the last 30 or a0 years, it's been used as hedgerow planting,