Need help!!...light green spots on bottom fan leaves..any advice greatly appreciated!!

[difco23]

Hi,
Need some advice from the more experienced growers. This is just my 4th grow and i noticed today that my Hobbit Auto (Kannabia) has got light green spots on the bottom fan leaves. I never had this before with any of my other grows so looking for some advice. Is this a nute deficiency? I am growing this under a 300W CFL. The PH of the water is good both going in and the run off. Constant air flow and temperature and humidity are also good and consistent. Any help here would be greatly appreciated. I have attached 3 pics of the problem so please let me know if you can help.

 

[faded187]

in the 3rd pic I see water on the leaf,my guess would be white powdery mold better find out for sure and quick or yull be screwed

 

[CGR]

see if this help...... you got me....

 

[Renaissance Redneck]

Curious, difco, what's your RH at, soil level?
And have you inspected your leaves under magnification (both top and underside)?

 

[Bromeo]

Looks like you might have got some drops of feed on the leaves and it caused that odd shaped spotting you see. Some nutrients are a bit harsh on the fans.

 

[swampman]

Looks like you might have got some drops of feed on the leaves and it caused that odd shaped spotting you see. Some nutrients are a bit harsh on the fans.

Im with this one as well...

 

[difco23]

Thanks CGR. I had seen those pictures before but never seen the chart below with the explanations. Will be great help for the future.

 

[difco23]

Hey Renaissance Redneck,
Humidity is a solid enough 50-55 all the time. I know one of the pics says 67 on the meter but tat because i had it outside of the grow closet. Thanks for your reply i have inspected both top and bottom of the leaves and cant see anything wrong. I'm leaning towards it being nute burn from splashes of water when i was feeding them. It doesn't seem to have gotten any worse and is just on the same leaves not on any of the newer leaves. Will post some pics shortly. Thanks again.

 

[difco23]

Its not mold anyway after an extensive cheek of both plants. Thanks for the suggestion anyway Faded187. it was worth checking them anyway just to be safe.

 

[faded187]

Its not mold anyway after an extensive cheek of both plants. Thanks for the suggestion anyway Faded187. it was worth checking them anyway just to be safe.

no problem man you know now you guys mention it that sounds like a logical explanation.....good call