🍋 Old Lemon Tree | Help 🍋

[JacksPlace]

Hi there, I have moved to my family's old farm and there is a Lemon tree there.
About 30 years old, planted next to an Orange Tree (probably too close).
Anyhoo, we have had tenants in the property for the last 4 years and the tree has been uncared for.
She use to give bumper crops multiple times a year but now she is looking a bit tired.
Producing fruit with growths (like a wart looking thing). I will post some photos (below).

Any help here would be greatly appreciated, don't know where to start

Mark!

 

[Mandy Onderwater]

It kind of looks like something known as "Lemon Scab". I'm struggling with the same issue, but I haven't tried fixing it yet myself as I've been too busy.
I definitely recommend giving it a google. Or hopefully someone else on here might know more

 

[JP 1983]

2 grams/litre (approx 0.24 oz/gal) copper hydroxide applied three times over a 9 week period, thoroughly and meticulously sprayed upon the tree's foliage, branches, trunk, fruit, flowers and especially any new growth/buds/flowers, will greatly assist your plant to defend itself from that fungal disease. Answer courteousy of Gardening Australia (3 min video).

 

[Mandy Onderwater]

Thank you @JP 1983 !

 

[JacksPlace]

Thank you @JP 1983