What is this?

Silentnvd

Member
Wondering if the spots on the leaves is a Deficiency or Fungus gnats attacking the leaves. I know its not spider mites because i looked underneath with a Microscope. Any ideas?IMG_0278.jpgIMG_0272.jpgIMG_0276.jpgIMG_0277.jpg
 

phishtank

Well-Known Member
There is definitely something wrong...it looks like you got some big black stripes growing across your plants man.
 

bostoner

Active Member
gnats wont attack the leaves I dont think. the larva will ruin your roots tho. Do you spray your plants? Could just be burns from spraying. If it is a deficiency I'd think it is calcium. Could also be from a ph lockout. Do you check it? If it is ph I would think it was on the low side by how it looks, locking out the calcium.
 

InsaneMJ

Well-Known Member
I'd say it looks like some sort of burn, cal mag burns look alot like that with spots appearing in the little of leaves.
 

Silentnvd

Member
i check PH twice a day as well as PPM its aeroponics Ph is always at 5.8-6.2 and ppm is at 1350 been increaseing every 4 days using distilled water with GH Flora 3 part. And its starting to appear on new growth after it gets established. I thought maybe i was underfeeding but at almost 1400 PPM i dunno Strain Is Afghan kush.
 

chrishydro

Well-Known Member
Does not look like insect, i think nute burn or a fungis, if it is white it is a fungas but I cant tell from photo if it is white. Do you spray them with anything durning light hours? If so stop it.
 

Silentnvd

Member
Does not look like insect, i think nute burn or a fungis, if it is white it is a fungas but I cant tell from photo if it is white. Do you spray them with anything durning light hours? If so stop it.
No i do not foliar feed... and no White fungus or anything i did battle Root rot but the roots are amazing now Super White and Fish boney looking (hairs that come off roots). I just cant seem to figure it out. I am gonna do a Full Nute change and leave PPM at 1350. The only thing i can think of is these Damn Fungus gnats i will get a root pic soon
 

ScoobyDoobyDoo

Well-Known Member
what light are you using? how close is it to your plants? are you using a ozone generator?

my best guess would be mg lockout. magnesium get's locked out a lot higher than other nutes on the pH scale. i think around 6.3-6.4

i wouldn't push the ppm right now if i were you though. try backing off to 800-1000ppm. 1350 seems like an awful lot for a plant that size.
 

ScoobyDoobyDoo

Well-Known Member
well, it's definitely not the light. you can actually move that 400w a lot closer. i keep 1000w lights 18" and 600w lights 12" for the most part. I'd move it down to 12" if heat isn't an issue.

i'm inclined to think it is a burn of some kind. 1400ppm at that stage is a ton. i'm never really over 900ppm in veg and only push certain strains to 1400ppm+ in mid-late flower. what week are you in veg? not counting cloning/seedling stage.
 

Silentnvd

Member
well, it's definitely not the light. you can actually move that 400w a lot closer. i keep 1000w lights 18" and 600w lights 12" for the most part. I'd move it down to 12" if heat isn't an issue.

i'm inclined to think it is a burn of some kind. 1400ppm at that stage is a ton. i'm never really over 900ppm in veg and only push certain strains to 1400ppm+ in mid-late flower. what week are you in veg? not counting cloning/seedling stage.
I forgot what week but its been over 3 months and i fought root rot for about a month so itd gotten about 2 good weeks of veg so far and then i started seeing those dots at about 800ppm so every 4 days i would up ppm abd yesterday i put it to 1350 from 1150
 

ScoobyDoobyDoo

Well-Known Member
I forgot what week but its been over 3 months and i fought root rot for about a month so itd gotten about 2 good weeks of veg so far and then i started seeing those dots at about 800ppm so every 4 days i would up ppm abd yesterday i put it to 1350 from 1150
yea, i would try and keep the pH more stable and back off the nutes. see how that does.
 

bostoner

Active Member
What ever happened to the calcium def. idea? Its a good chance its your problem especially because your using distilled water. Here it what late cal def looks like.... and seem like your getting there....
View attachment 2183872
 
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