Is this light Bleaching?

Hi Guys!
Plant have just started 3rd week of flowering and from 3 days and 3 plant (on 4 total) are showing some white spot on the flower.
Pics are not perfect but hope it will help.

I was scared about mold but don't seems to be that the problem, maybe the pics are not clear but it was more a light bleaching spot more hard and consistent, but leaves seems green and not bleached.
White dots are growing, i have moved away from the bud a little bit the light just in case but i don't know if that it's the problem.

The strange things it's that the plant closest to the light don't show any of this dots.

Possibly but lay off the nitrogen for the time being.

May i ask why?
Anyway i started to decrease N level as i switched to 12/12, now i am almost 50% compared to the veg. nute.

Mr.Miguardi said:

May i ask why?
Anyway i started to decrease N level as i switched to 12/12, now i am almost 50% compared to the veg. nute.

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Ultra dark green leaf color
Clawing leaves

WAY too much N

Billy the Mountain said:

Ultra dark green leaf color
Clawing leaves

WAY too much N

Click to expand...

This is why^^

I forgot to say that i had N toxicity in veg due to a wrong foliar feed that' way you can see some clawed leaf, also for take this pic i played a little bit with luminosity so da leaf are darker that what really is.

New growth is always lighter in color. How long ago did you switch to 12/12? That lighter color is most pronounced during the stretch phase, and I think you're just seeing a contrast between it and the very dark leaves. I doubt it's bleaching.

Rurumo said:

New growth is always lighter in color. How long ago did you switch to 12/12? That lighter color is most pronounced during the stretch phase, and I think you're just seeing a contrast between it and the very dark leaves. I doubt it's bleaching.

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switched to 12/12 16 days ago. plant have doubled the size and now seems to be stable.

Anyway Thx for than fast reply!

Sulfur?

hillbill said:

Sulfur?

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I grow in Hydro RDWC, so sulfur are quite low. I usually put a bit of epsom salt in the foliar feed.

Might just be the white balance of your photo, but that color looks an awful lot like symptoms of russet mites.

Actually, after looking at this photo again, I would put money down on early russet mite infestation.

My bad, photo are not perfect, i made the luminosity correction only to better show the white dots but maybe has created a bit of confusion since it appear too much "blurry" than real.
I'll take a look for russet mite if i see something strange but don't remember seeing anything.

Mr.Miguardi said:

My bad, photo are not perfect, i made the luminosity correction only to better show the white dots but maybe has created a bit of confusion since it appear too much "blurry" than real.
I'll take a look for russet mite if i see something strange but don't remember seeing anything.

Click to expand...

I adjusted the colors in photoshop and it still looks very much like russet mite damage IMO. Notice the lack of trichomes and some of the small lower leaflets are tacoing.




Notice the way these little leaves towards the bottom are tacoing, plus the coloration of your flower is a pretty obvious symptom of russets.