Hello happy to help.

I think you've hit it on the nose as to how to manage the fungus. It's not likely to adversely affect your plants in the future so feel fee to take your own advice. Hygienic practices is the best approach.

Have you ever thought about becoming a Master Gardener? The feature we look for most in applicants is the willingness to check researched resources for answers to plant and tree issues and I think you've got it. Also, the Hennepin county master gardeners is a great organization and you'll learn so much. Check out their site here and watch for when this year's application process begins sometime in the next few weeks.

Good-luck!