Yea I am located in Colorado as well Afghan King.
This is the dilemma I was facing.. I couldn't find solid research either way, whether PM was systemic or not.
I have read dozens and dozens of forum threads, and the general consensus is green cure, milk, neem, ect. it just a temporary solution because the PM is inside the plant and the spores on the leaves are just the final manifestation. Matters become complicated because there are reports from people claiming that green cure or something similar was successful, while others claim it was again, only temporary.
I did receive a clone from friends garden many years ago and after several applications of baking soda and water I never saw PM on that plant again. However with my current situation, and much larger plants, neem oil and the likes was only a temporary fix. The eagle 20 seems to have improved the situation drastically, but I am still finding a leaf here or there with PM.
As I mentioned in the original post, I did a massive defoliation and added extra air circulation to my greenhouse, but I think temp drop/humidity rising at night is the main culprit here.
Once again, back to the original question, if eagle 20 is systemic, why am I still seeing spores. The application rate recommended for similar plant species by the manufacturer is 2ml, and the general consensus from other growers is 1-2ml is more then enough to never see it again. Obviously other people have used higher amounts, but being an organic grower I was trying to keep my pesticide use minimal as it contradicts what I believe in.
I might try spraying the remaining spots with green cure, and then move on to a higher dose of eagle 20 if that doesn't work. My primary concern is I don't want the PM returning with vengeance during flower. So I would rather eradicate it permanently now then use a temporary band aid. I don't think I will be able to improve my environment much more this season.