u/Empty_Chip937

Image 1 — Prairie Gold Aspen issue
Image 2 — Prairie Gold Aspen issue
Image 3 — Prairie Gold Aspen issue

Prairie Gold Aspen issue

My aspens have had an issue this spring here in Idaho, I have self diagnosed as Aspen Leaf Spot (Marsonina). Am I correct? I wanted to see if anyone had advice on how to eradicate whatever it is (if possible, I have an agronomy background so I know you can’t always get rid of pathogens once they get established. 2 out of 4 of my trees are currently battling it, I have applied fungicide at initial symptoms but it seems to keep coming. I do not believe it to be a water issue, but open to any suggestions. TIA!

u/Empty_Chip937 — 3 days ago