Since we get a ton of rain each year and I overhead water it is hard not to have leaf spot in the garden with the 3 acres but this also allows me to see which ones are prone to a lot or a little and not for hybridizers I do use Cleary and it does help but in Oregon I do not it possible to have no leaf spot and how I wish it was
But in turn we do not have to worry about borers so I guess it is a trade off.
D