Do you recognize this ailment?

Hello,

This plant has been showing this weird pale greenish discoloration on the leaves. I don't think it is a deficiency because none of the other clones from other mothers are doing it, but all of the clones from one particular mother are.



The other clones from other mothers are not affected and are already starting to flower about two weeks into flowering. This one is smaller and way behind the others in flower development.

Here is another clearer picture from some younger clones from the same mother that are still in veg:



The mother shows it too a little but not nearly as bad.

The strain is White Widow Max

So here are my questions:

1) is this a deficiency, disease or some sort of fungus or mold?
2) will or could it spread to other healthy plants?
3) how do I treat it?
3) Should I cull it from the crop or grow it out to see if it will catch up with the others? and if so, should I also destroy the mother that keeps creating affected clones?
4) will it catch up with the others in flowering even if it does eventually flower?


Thanks for your help all

Disclaimer: This is a hypothetical situation of course.

I can't really see well with the lights on, can you take more pics without lights?
View attachment 2382702View attachment 2382703

The first pic looks like major nute burn... the other ones look like light burn... move your lights up a before you kill them... and Flush the nute burnned plant... give them a few days to recover...

ItsSaturday said:

The first pic looks like major nute burn... the other ones look like light burn... move your lights up a before you kill them... and Flush the nute burnned plant... give them a few days to recover...

Click to expand...

The second two pics are of a couple of clones from the same mother that are also showing the same signs. The photos where taken in the T5 Veg room lights as they are still in veg.

I don't think it is light burn because the plant is under a 1000 watt air cooled HPS light that is placed well above the plant. The plant is the shortest of the whole bunch which are from other mothers. The tallest ones are much closer to the light and are unaffected.

I also don't think it is nute burn because none of the other 8 plants in the batch are affected.

But the biggest reason I don't think it is nute burn or light burn is because there are only two other clones from the same mother and they are still in veg, receiving veg doses and T5 light and they are showing the same signs as well. Upon close inspection of the mother, she too has similar signs although not as prominent.

It must be some sort of disease that came from the mother and is affecting the one flowering clone and the two other vegging cones. or the mother is just a sickly weak plant that produces weak sickly clones.

So my main question is should I cull the one that is flowering and the two other ones that are vegging and destroy the weak mother?