Mature Comice Pear Tree Struggling

This mature pear tree is struggling. It does blossom; it produced a good crop until 2015, has gone downhill, then this year had very tiny pears. It's probably a Comice pear tree.

Is it worth creating a circle in the lawn and fertilising and mulching and making sure it gets more water? Comice seems to need pollinators, so could that be it?

It's too big for me to prune and I'm not experienced enough anyway to rejuvenate it over a few years. I think the owners had tree surgeons in at some point, but not sure they've done a great job.

It also had some sort of fungi at the bottom in the autumn,which they removed.

Any advice welcome. Thank you.

 

Yes, Comice does need a pollinator.

Pear trees may be growing locally and be sufficient to pollinate your tree MAJ but I wonder if they, or some of, them have been removed recently?

It doesnt look well pruned either, looks congested and prob producing very little fruit bearing wood .....Doyenne du Comice is a spur bearer meaning it produces its fruit on short spurs.

If mine, I would look to pruning so could you get a local expert to do this?
I would look to reduce both height and congestion MAJ and thereafter summer prune

 

Thanks @Verdun . Yes, that's what I thought really. Is it worth fertilising and mulching around base, or is it pointless without the pruning (I'd imagine...)? They seem a bit reluctant to have a tree surgeon for some reason. Also, do mature trees even need fertiliser - or are roots too deep anyway?

 

Hello MAJ
I am a great believer in mulching. I am currently mulching my own garden and apply it thickly and generously and this is what I would do in your case.
A fertiliser would not hurt....if you decide to do this I would use fish blood and bone and topped with a thick mulch. You could make a good mulch with mpc mixed with dried manure