Poor apple harvest this year

We moved last year and inherited some old apple and pear trees in the garden. Last year we had a bumper crop but this year most of the trees only have a few fruit and some appear to have none. Our neighbours trees have a good amount of fruit. What could be the reason for our poor crop? Many thanks.

 

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Could have been the weather in the spring, but could also be that they've gone into a biennial fruiting pattern as they didn't get pruned

 

In an earlier post, @Jenny namaste I think it was, said all the pollinators were about at the wrong time for the blossom

 

Despite all the forecasts predicting bumper apple crops this year, every single tree in every single village around this way has had a totally useless crop this year.

 

I had approximately 400Lbs of apples this year.

 

What variety is it Liliana

 

James Grieves
An old tree which we inherited. Gave it a small trim last year, this year it has to done quite
a bit more. A lot of branches crossed over etc.