[azubah]

I haven't had any onion white rot this year. I usually get it a lot.
Also I got some allium leaf miner early on but the onions recovered and made good bulbs this year.
Could it be due to the weather?

[mumofstig]

It is usually worse in cool years, rather than hot ones, when soil is also damp (that's why you shouldn't water them)
What has your weather been like?

[azubah]

Cold spring, then wet, then dry, then wet again now. When I first got my plot I had to water seeds sown and small plants in spring, now I rarely water anything any time.