Q.Red tip disease
It is all well and good to be given the scientific name of what helps kill this mess, but I am not a scientist and even those who sell stuff don’t always know the scientific names. What is a product name for which I can look so that I can keep my wild red tips from getting the Black spot disease?

Here are some links to help you.
https://www.gardeningknowhow.com/garden-how-to/info/diy-bordeaux-fungicide.htm
https://www.google.com/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=bordeaux+fungicide&tbm=shop