This is a soil grow ScroG of Blue Dream and Northern Lights. It's my fifth grow with very little changing in any part of my process other than upgrading equipment (better tent, better screen, better quality lighting etc). Some time in the past week these black spots suddenly showed up. They're causing the affected leaves to dry and become crispy wherever the dark spots occur up to and possibly on the buds.
There's side by side pics of perfectly healthy buds next to highly damaged ones and the damage doesn't appear to have affected anything below the top leaves - as can be seen in the images.
At first I worried about a disease or fungus but I see nothing matching this when I search.
More than anything it reminds me of how it looked when I accidentally sprayed 409 near a crop a couple years ago but I can't think of anything that's been near these that would have done that.
I'm not ruling anything out though. Any help or advice is appreciated.
There's side by side pics of perfectly healthy buds next to highly damaged ones and the damage doesn't appear to have affected anything below the top leaves - as can be seen in the images.
At first I worried about a disease or fungus but I see nothing matching this when I search.
More than anything it reminds me of how it looked when I accidentally sprayed 409 near a crop a couple years ago but I can't think of anything that's been near these that would have done that.
I'm not ruling anything out though. Any help or advice is appreciated.
