Hello all, I'm seeing discoloration of leaves on one of my girls and I'm struggling to identify/correct the issue. I first noticed a deep rust color on new growth which I assumed was a calcium deficiency but I am hoping for some advice.
Setup info:
White Widow Auto (Flower started 10/22)
Spider Farmer SF4000 LED
Fox Farm soil
Fox Farm nutes (every other feeding)
CalMag (every other feeding)
PK Booster
Humidity in 40 to 50% range
Temperature between 70 - 82
When I noticed the discoloration I flushed, 4 days later I fed CalMag and tested RO.
PPM 1161
PH 6.0
Next feeding 3 days later:
PPM 890
PH 5.9
Last feeding I sprinkled a small amount of lime on the soil in hopes of bringing the PH up and haven't tested since then.
I also added a dose of PK booster as I have noticed some spotting on bottom leaves.
I would appreciate opinions on cause and where to go from here.
Thanks in advance..
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6th week of flower. I was able to raise the light to 26" which is the max in the environment. I will cut back on watering & post updates if things change. Thanks for the advice, it's appreciated.
Your ph is a lil low but I wouldn’t think it would do that and your ppm doesn’t seam to be all that high to burn your plants like that
What week of Flowering are you in? I’d move the light up if it was me I burned my first run to a crisp I was also thinking it was a Deficiency
The light is 19" from the canopy.
Here is a pic that shows discoloration at the bottom of the plant.
Is the damage just on the top of the plant?
Looks a lot like light burn. What is the light distance from the top of the plants?