We have a small pear tree in the garden which was already in the garden when we moved in 10 years ago. the tree always produced small hard pears which we could not eat. this year, the trea only had few leaves and few flowers, they all died; now there is nothing on the tree and it looks dead. could it be dead or maybe missed a season due to the lack of water for 6 months in london? But few meters away from the pear tree we have a mini willlow / salix, it burgeoned and that is it. Had few leaves which died as well as the buds. it also looks dead -- not sure what is going on -- thank you