Purple sickness

[Oscarzuma]

In my part of the Midwest, local growers often encounter this bud purpling malady. Not sure what to call it. In some grows it can overwhelm plants or parts of plants. I've also seen plants covered with it, but then

overcame it to become fine producers in the end. What's the group mind on this? Any suggestions?

 

[greenmobster440]

I've never seen that before.