I cannot tell about THIS fungy. But we are working on decay detection methods for tree-trunks: the methods are called electric resistance tomography and sonic tomography. Using these technologies we can detect the change of wood properties such as MOE and moisture. Let me know if this is of interest for you.
The picture / symptom is not very clear to me. It seems to be a gall (induced by insects, fungi, bacteria, virus,.. ??) on the inflorescences or twigs. Have a look more in detail, open these structures ...