20% yellow leaves, some with tiny red dots

Nutrients
1

Continuing along the lines of my post about the leaves on my blueberry plant, I thought I would post about this one. Right now about 20% of the leaves are turning yellow. A few of them (see the second photo) have tiny red dots on them.
I suspect that, like the blueberry plant, this one is also just following it’s natural progression late in flower. But, I want to be certain and I also want to get better at identifying deficiencies.
So - I believe the yellow is just indicative of a nitrogen deficiency. The red dots however… the closest I could find in my photos of deficiencies I’ve collected is a manganese deficiency. But it doesn’t look exactly the same, so I’m not sure.

Support ticket info:
Seed Strain: ILGM Northern Lights
Type(Normal, Feminized, Autoflower): Autoflower
Medium(soil in pots, DWC, Coco): soil - Fox Farms Ocean Forest
pH of runoff or solution in reservoir: 6.5 pH runoff
Strength of nutrient mix(EC or PPM): n/a - reverse osmosis water with 6.5 pH, runoff is 1100 PPM
Indoor or Outdoor grow: Indoor
Light system(CFL, HID, LED): HID - currently HPS
Light power(true watts): 750
Temperature(Day and Night): 77°F daytime, 65°F nighttime
Humidity(Day and Night): 45% day and night
Ventilation system(Yes, No, Size, CFM): Yes - 6" 440CFM

IMG_3981
IMG_39811154×865 466 KB

Here’s the one with the tiny red dots:

IMG_3982
IMG_39821154×865 313 KB

IMG_3983
IMG_39831154×865 336 KB

IMG_3984
IMG_39841154×865 367 KB

2

Is it only on the already dying leaves or the healthy green ones too?

3

Only on the yellow, dying leaves.

4

Your plants look right on track for a good harvest: good structure and color to the leaves, the dying leaves are fans and the red spots are likely just decaying plant material as that leaf is dead dead dead haha.

5

Yep, I agree 100% Nice job TommyBahama!

6

I agree with everyone else. She looks like she’s showing you her autumn colors. Finishing nicely. :sunglasses:

7

Thanks, but I was looking more for a consensus on nutrient excess/deficiency to assist in identification for future grows. Pretending for a moment that this plant was still in the vegetative state, do you think the yellowed leaves would be indicative of a nitrogen deficiency?