As usual our apple tree is absolutely covered in mines - mostly Lyonetia Clerkella and a few others i have seen before. However, I came across a slightly different looking mine today that combines both a gallery and a wedge- shaped sort of blotch. Could his be Stigmella Incognitella perhaps? Interested in people's thoughts.
Hi Andrew,
ReplyDeleteI'm afraid it is difficult to tell exactly what's going on there without a back-lit view through the leaf (which would prove or disprove the presence of Stigmella incognitella). I suspect that what this shows is actually just the death of sections of leaf caused by the multiple mines of Lyonetia clerkella, with perhaps some external grazing by other culprits too.