For treating/controlling harmful pests and fungus?
I suppose anything chemical would kill these plants?
For fungus any SULPHUR based fungicide.
For insects watch this video:
Tom, thank you very much. I will check out that video tonight.
I'll tell you, I have a whole different attitude about all this rain I get. I love it.
We've been HAMMERED with rain where I am, 6.65" alone this month. 19.43" for the year so far.