I had this blemish on many of my Antirrhinum leaves this year and was wondering what they might be. Could they be possibly a fungus or a leaf-mine of some kind? 5mm to 10mm in size approx'.
Comments
Underside of leaf?
Is there anything different visible on the underside of the leaf?
I don't think it is a leaf-mine - miners eat out the inner tissue of the leaf, leaving the upper and lower cuticle intact. Sue