What are these yellow/brown spots?

Durden7

Well-Known Member

• Sep 13, 2017

• #1

Showed up a couple days ago.. plant looks healthy other than about a dozen leaves with these little clusters on it. Want to nip this In the bud before it becomes a problem.

DWC
5.9 PH
1100 PPM (2/2/2 general hydroponics and .5 calmag)

Link to my journal- https://www.rollitup.org/t/single-plant-600w-4x4-dwc-scrog.948296/#post-13775813

 

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Durden7

Well-Known Member

• Sep 14, 2017

• #2

Bump.

 

Ghost of Davy Jones

Well-Known Member

• Sep 14, 2017

• #3

I believe there's a few different things that can cause leaves look like that. Maybe post a few more pics and a full plant shot so others can have a better look when they chime in. Hope you get it figured out man.

 

Durden7

Well-Known Member

• Sep 14, 2017

• #4

Ghost of Davy Jones said:

I believe there's a few different things that can cause leaves look like that. Maybe post a few more pics and a full plant shot so others can have a better look when they chime in. Hope you get it figured out man.

Click to expand...

Can't really see much in the pic of the whole plant. Too big Single plant in a 4x4 scrog.

Any help is appreciated. Thank you.

 

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Ghost of Davy Jones

Well-Known Member

• Sep 14, 2017

• #5

The pic isn't much help. Sorry your having so much trouble uploading a few pics.

 

Ghost of Davy Jones

Well-Known Member

• Sep 14, 2017

• #6

Looks possibly like a cal/mag issue

 

Durden7

Well-Known Member

• Sep 14, 2017

• #7

this is about the best I could get :/ put in 15 more ml of cal mag today. Also this is day 5 of flower.

 

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AmericanGrower508

Well-Known Member

• Sep 14, 2017

• #8

looks like a calcium problem to me. I'm not a hydro guy..what does .5 = in ppm? I know my friend runs his at 150 ppm

 

AmericanGrower508

Well-Known Member

• Sep 14, 2017

• #9

I just checked his thread he says he uses 8ml per gal. of cal/mag now because electric meters suck at ppm..lol

 

Durden7

Well-Known Member

• Sep 15, 2017

• #10

By .5 I meant a half part. So they call for 5ml per gallon and I use 8 gallons... so 8x5=40. 40/2= 20ml. I tossed in 15 more ml yesterday so I'm running roughly... 88% full strength.. only reason I shy'd away from 100% is my tap water is 220 ppm.. and I had read somewhere that if you have hard tap water, that it was easy to give too much cal/mag because hard water is already fairly saturated with it.

 

stoned-monkey

Well-Known Member

• Sep 15, 2017

• #11

looks cal. to me.