Leaf discoloration. Struggling to determine what's going on. Hoping to get some help!

granddaddy_terp

New User
Joined
Jan 27, 2022
Messages
3
Reputation
0
Reaction score
7
Points
0
What's up everyone!? I've been a big fan of this forum ever since I first began growing this past fall. I finally made an account today and I'm hoping I might get some help with one of my ladies. I will try to provide as much info as possible.

Problem: Most of the leaves are losing their color and turning yellow. A few towards the bottom of the plant are beginning to turn brown and crispy. There is also some purpleish colored leaves near the top of the plant. I do not believe the purple is due to genetics.

Medium/grow method: I'm growing in Greengro Pride Lands soil. Using 3 gallon fabric pots. This particular brand of soil says their is nutrients for the first five weeks of the plants life.

Feed: and supplements used: I'm using Lotus nutrients. She received a single feeding of veg nutes at 1/4 strength on day 32. Since then she has been given Lotus Bloom and Lotus Boost. I started at 1/4 strength (around 400ppm) and have worked her way up to 1/2 strength (around 625ppm). I have also been using Bloom City cal-mag at 1/2 teaspoon per gallon of water.

water source: tap water. It's PH is 7.2-7.3 so I use vinegar to bring the PH down and get it to 6.5. I typically water every 4-5 days once the pot feels light. I like to water to 10% runoff and it usually takes between 1-1.5 gallons to achieve this.

Strain/age: Twisted Cookies by Twisted Tree. 57 days old.

light used: Unit Farm UF2000. It's a 100w led board.

Climate: temps stay between 74-77 degrees during lights on and drop to 62-64 degrees when lights are off. I run an 18/6 light schedule. RH usually stays between 45%-55%, though sometimes it does get into the 60%-65% range when lights are off.

Additional info:

I first started noticing problems around day 40. Her leaves were starting to lose some color. At that point she hadn't been given much in the way of nutrients so I figured she was just hungry. Unfortunately I do think I stopped giving her veg nutes a week or two too early. I'm sure she needed more nitrogen during her stretch. I am wondering if the main problem could be related to that.

Someone told me that it looked like a lockout issue. I decided to perform a slurry test and the soil pH measured out to 6.8. I realize that is a little high but I am unsure if it is high enough to cause full blown lockout. Part of me thinks I should flush her but I don't want to make things worse if lockout isn't the problem here.

I had another person suggest that it could all be a result of too much light. I think this is unlikely as she is under a 100w led board. It isnt a super powerful light and it was never closer than 12 inches. Still, I raised the light up so it now hangs 16 inches above the canopy. Unfortunately I cannot raise it any higher.

I'm really not sure what to do. Fortunately her growth doesn't seem to have stalled. Her buds are definitely getting bigger by the day. Still, the leaves seem to be getting progressively worse. I don't know whether to feed her more, flush or start giving her some veg nutes again (for nitrogen).

Any and all help is greatly appreciated!
 

Attachments

  • PXL_20220126_130228471.jpg
    PXL_20220126_130228471.jpg
    5.1 MB · Views: 44
  • PXL_20220126_130221696.jpg
    PXL_20220126_130221696.jpg
    4.9 MB · Views: 47
  • PXL_20220126_130249603.jpg
    PXL_20220126_130249603.jpg
    2.6 MB · Views: 44
  • PXL_20220124_130051737.jpg
    PXL_20220124_130051737.jpg
    3.6 MB · Views: 50
  • PXL_20220122_015124112.jpg
    PXL_20220122_015124112.jpg
    3 MB · Views: 45
  • PXL_20220122_015120511.jpg
    PXL_20220122_015120511.jpg
    3.3 MB · Views: 44
  • PXL_20220127_232610607.jpg
    PXL_20220127_232610607.jpg
    3.3 MB · Views: 36
  • PXL_20220127_232620244.jpg
    PXL_20220127_232620244.jpg
    3.3 MB · Views: 32
Last edited:
Back
Top