Yup, that is likely the reason for discoloration in your leaves.
During flower, a drop over night that significant and as low as 60F would cause most strains’ buds to turn purple.
I would also be a little concerned the soil became very saturated and even maybe oversaturated to the point of many nutrients being flushed of the media. And also the possibility of your pH being altered.
~MacG
I know how lower temps will cause purpling but it looks more like necrosis the black spots looked mushy almost and the brown spots crumbled I will be getting a soil ph test kit asap I’ve been looking all over closest thing I can find in pics looks like ph issue like you said just wierd only that plant had issues its planted in the ground with another one 4’ away and that ones having no problems idk its confusing
Absolutely, too wet of conditions could allow for "leaf rot. It isn’t just the roots.
Also may be more susceptible to issues due to strain I had a phosphorus deficiency in the mother that plant is the only clone I have outside
That’s more what I was thinking its been super hot and humid for weeks then the last 2 days rain and last night was a SERIOUS downpour
Will h202 keep powdery mildew at bay for these last 2 weeks of flower I knew it was going too well haha fucking humidity outside jumped to 100% at 95°f and in the tent it jumped to 60 lights just came on and bam I got fuckin pm
I’m not positive it will keep it away. I know it helps when you have it. Let’s tag some growers 
It’s a proven treatment, I think that conditions apply to whether it’s 100% successful
It literally just started I’ve never had it EVER before so new 1st shit does suck I have been checking hard since week 3 the canopy should have been spread out better though is what it is took off every little piece showing pm and plan on treating with trifecta when lights go out then trying to make it to harvest spot treating with h202 sound plan? Or am I being too hopeful
Any other suggestions I am just trying to make it to harvest then I will break it all down and clean it before reset just got me super stressed I need a 1/2 way decent harvest to get through till I can get reset
There are other fungicides, and I believe sulfur bombs would work too. I’ve never used sulfur bomb though, and it’s been so long since I bought a fungicide that I’m not sure what to recommend
Digging through found these
anyone have any experience with either of these should I rotate one of these with h202 every few days or what would be the best plan of action using what I have here and hydrogen peroxideI cut off anything affected washed and froze the buds then I sprayed this a.m. with the trifecta and wel see how it goes
I run a lvpk that has tones of synthetic cherry superb smoke second to none!! Best hash ever as well. Not for the weak at heart during daytime hrs lol (I love it any time of day tho)
I use green cure basically calcium bicarbonate hasent messed up flavor as close as 30 days b4 harvest.pull ur lights waaaay up tho or use a cpl hrs b4 lights on even better;) it’s easy to use and safe
I’ve used everything. Peroxide really is the best. Couple it with lots of airflow and plan to wash your harvest and I bet you will be fine.
Thank you for the reassuring words I needed that been super depressed over this I need a 1/2 way decent yield i cant afford to buy my buds for 2-2 1/2 months for the next run ya know
