There ARE viral diseases of cannabis- at least 4 or 5 of them- mostly mosaic type viruses.
The white I mentioned is simply albinism and shows up somewhat commonly on the leaves. I've seen it in my crops before. I was using it as a reference for patchy coloration being possible on this plant.

Chron, interesting point. I will then ask the OP, did you pee near your plants (deer repellent)? I'm not being fresh, the outdoor grower I know does that regularly. Heck, I've added a bit of repellent to his plants myself, lol. Human urine contains at least one compound found in ST.
stinkyattic Reviewed by stinkyattic on . Black Tips Help Please Hello all.. Gots a prob.. I have a few plants outdoors and I am getting some of the new growing tip turning Black from the center and shading to the surrounding leaves . It looks a lot like mildew you see in a shower but it does not rub off. I have tried a fungicide and it has no effect. I pick the tip off and next time I go back I have a few more with it starting to form at the tips.. I can supply photo if needed but if anyone has any idea what I could do to correct I would be very appre... Rating: 5