Hi Sally,

If they are only a couple of years old I wouldn't expect any fruit off them, they take that to "bed in".

As to the swirly lines in the leaves, that sounds like leaf miner. It's a grub that lives between the outer surfaces f the leaves & eats the middle bit (like nibbling the custard out of a custard cream or don't you do that ) Nothing really to wrry about they just look unsightly.

You can spray for them but I guess you won't want to do that

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