Dizzler2020
420 Member
5 weeks into flowering and im having some issues with leaves browning/yellowing with some spots on them. Heaps of curling tips too. Pics attached for reference. All help appreciated.
Help! Am I in trouble here?
- Thread starter Dizzler2020
- Start date
Stormblessed
Well-Known Member
The tips looks like either heat stress or nutrient burn maybe, but the spots idk, this chart might help
OldSchoolToker
Well-Known Member
What are you using for your plants as far as nutrients?
Bob Loblaw
Well-Known Member
PH
Slammy Pajama
Well-Known Member
In my experience, you can get tips turn yellow/burnt and curl UPWARDS (like that second pic) from potassium deficiency, although I reckon the spots look a little more like Calcium and/or Magnesium.
I've also been told that LED growing causes a higher need for calcium, and I have seen a need to supplement Ca/Mg on a few of my last grows (growing under a newer Viparspectra and then a COB/QB mix light)
I've also been told that LED growing causes a higher need for calcium, and I have seen a need to supplement Ca/Mg on a few of my last grows (growing under a newer Viparspectra and then a COB/QB mix light)
Curiousnoob
Well-Known Member
possible nutrient burn on ends of leaves, spotting looks like a cal/mag deficiency or your ph is not in range for cal/mag absorption. Whats your ph range?
