Brown spots that turn Yellow

K

KeepinItGreen

Active Member
Hey all, This is my first grow I am growing in a closet type setup with a 400W mh light and plenty of airflow.
I have 4 NL fem. that I'm growing in Foxfarm organic planting mix. I started the plants in peat moss potts with jiffy mix, and once sprouted I had them under some cheap floros, and once they had about 2 sets of leaves I transplanted them into 3gal grow bags with the organic soil.
When I put them in the 3 gal grow bags i turned on my 400w mh and burned the plants. I moved the light all the way up and the plants started to recover and now at about 4weeks in they are about 5" tall with alot of leaves.
The problem I'm having can be seen in the pictures but there are brown spots forming on the middle of some of the leaves and they later turn yellow.

I'm using
Foxfarm Organic Potting Mix
Filtered tapwater with a ph of 6.7
Foxfarm POM tomato/veg. Organic fert
400w mh
humidity 20-45%
Temp. 70-80F
 

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K

KeepinItGreen

Active Member
KeepinItGreen said:
Hey all, This is my first grow I am growing in a closet type setup with a 400W mh light and plenty of airflow.
I have 4 NL fem. that I'm growing in Foxfarm organic planting mix. I started the plants in peat moss potts with jiffy mix, and once sprouted I had them under some cheap floros, and once they had about 2 sets of leaves I transplanted them into 3gal grow bags with the organic soil.
When I put them in the 3 gal grow bags i turned on my 400w mh and burned the plants. I moved the light all the way up and the plants started to recover and now at about 4weeks in they are about 5" tall with alot of leaves.
The problem I'm having can be seen in the pictures but there are brown spots forming on the middle of some of the leaves and they later turn yellow.

I'm using
Foxfarm Organic Potting Mix
Filtered tapwater with a ph of 6.7
Foxfarm POM tomato/veg. Organic fert
400w mh
humidity 20-45%
Temp. 70-80F
Click to expand...

I was also wondering if they look small to you guys
 
K

KeepinItGreen

Active Member
amsterdam_goodies said:
I am not an expert, but I think that you might be overwatering
Click to expand...
I mist the cabinet alot to keep humidity up, So I havn't watered them a whole lot. I'm having trouble keeping my Humidity above 20%. Could this be the problem?
Any Insight from an experienced gardener would be greatly appreciated, I am started to get a little concerned if the plants are have problems at a month in.
 
K

KeepinItGreen

Active Member
KeepinItGreen said:
I mist the cabinet alot to keep humidity up, So I havn't watered them a whole lot. I'm having trouble keeping my Humidity above 20%. Could this be the problem?
Any Insight from an experienced gardener would be greatly appreciated, I am started to get a little concerned if the plants are have problems at a month in.
Click to expand...

Anybody have any Input?
 
A

amsterdam_goodies

Well-Known Member
no i doubt its the humidity... highly doubt it... you said u mist them, it could be a burn from water residue on the plant. water can sometimes become magnified by the intensity of the light and put spots on leaf...
 
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