Dan, how often are you spraying the Dot mango tree...I was reading the directions for mango trees on the Plant Doctor and it says:
"Spray tree every 14 days
during blossom period, then
monthly until harvest."
Wasn't sure...but, it sounds a little excessive and didn't want to apply it that often? Afraid of the long term affects. Any thoughts?
I have sprayed it on the Dot every two weeks, more or less. I've been assuming that it's harmless, at least compared to some of the popular/effective fungicides from the olden days. The limited Googling I've done on Plant Doctor and another brand with the same stuff in it has not turned up any negative long-term effects. (But then I thought copper was utterly benign until I read otherwise on the forum.)
But the small fruit on Dot are quite speckled, so I started with copper recently on the whole tree, which has some new blossoms. As I said, the weather has dampened my enthusiasm for non-systemic fungicides.
I only started with the Plant Doctor last year, so don't have an overall sense of how effective it is. However, it does at least
seem that the Plant Doctor got rid of powdery mildew on Rosigold both last year and this year.