Spots appearing on leaves? -First time grow

madman559 · Sep 1, 2018

up until this morning this girl has looked flawless, just before lights out last night, I noticed some pale looking spots, they looked a bit worse this morning. looking beneath the leaves you wouldn't know it appears to be on the surface.

Northern lights auto
5gal smart pot using natures living soil for autoflowers (water only) mixed with Organic potting mix water has been mostly RO, but when i watered this morning i used de-chlorinated tap water with a bit of cal-mag (6.3ph) just in case

light: 400w Mars Hydro 2 Pro epistar 80

cinderella 99 in FFOF next to it is unaffected - Go Box Nutes

both plants sprayed with neem/soap 3 days ago after lights out (preventative).

Blitz35 · Sep 1, 2018

I'd say maybe that spray before lights out did it. To me, and i can't be sure, it seems to be white powdery mildew forming, or some other mold. Surely doesn't appear to be nutrient related.

madman559 · Sep 1, 2018

Blitz35 said:
I'd say maybe that spray before lights out did it. To me, and i can't be sure, it seems to be white powdery mildew forming, or some other mold. Surely doesn't appear to be nutrient related.

Thanks for the reply! i accidentally splashed water on the leaves while watering a couple days ago could this damage leaves? my tent avereages 65-82 degrees and 50-60 humidity

Blitz35 · Sep 1, 2018

Depending how long it stays in that environment, with temps at 65 and humidity at 60%, it can induce mold growth...especially without air circulation.

ANC · Sep 1, 2018

That doesn't look like something I'd be worried about yet...
That being said, I gave my plants a good copper treatment while they were still small, this round... ( I run clones from clones from clones always the same plants).
I have to say the amount of vigor the plants got after the treatment is impressive...

madman559 · Sep 1, 2018

Blitz35 said:
Depending how long it stays in that environment, with temps at 65 and humidity at 60%, it can induce mold growth...especially without air circulation.

ahh ok temps/humi are generally only low/high at night when leds are off(18-6), as of right now i'm at 73F and 53%hum pretty normal during the day. I'm running a 2.5 X2.5 tent with a 4' fan for exhaust and two 6 inch osc fans blowing just slightly above the canopy to where the leaves gently dance but don't bend over. no intake fan, I just keep bottom window flaps of tent open

madman559 · Sep 1, 2018

ANC said:
That doesn't look like something I'd be worried about yet...
That being said, I gave my plants a good copper treatment while they were still small, this round... ( I run clones from clones from clones always the same plants).
I have to say the amount of vigor the plants got after the treatment is impressive...

yea, I was surprised to see nothing that looked like this in deficiency sticky or in any of my books I figured maybe someone here has seen this before though. and i am glad to know it probably inst a nutrient issue

Spots appearing on leaves? -First time grow

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