I stumbled on the first pustules of brown rust (Puccinia triticina - Бурая ржавчина) in a local crop of wheat yesterday - local as in “not mine” and “probably had no fungicides or nothing of any note”.There was not much about but it was there.
To be honest I thought it had been too hot for the disease to develop but it goes to show that it is out and about and fungicides are justified.