My potted citrus are suffering this winter. Leaves yellowing and dropping. Something’s chewing the leaves of the lemon.
Here’s a note, added some months later…
Earwigs have been the bane of my young citrus trees. It is they that have been chewing the leaves. The best way to stop them has been to cover a few inches of the trunk and the supporting stake with Vaseline. This stops them from climbing up into the leaves.
I’ve given them a dose of epsom salts and will wait and see.
Does anyone have any other suggestions?