Hi, this is a BIG BUD baby, almost 3 weeks into vegging.
This picture was taken a few days ago, when the browning began showing:
(please click on them for bigger pictures)
and this is what I have captured today:
And these are the macros:
The brown spots apear from the center of the leaves, first as a yellow spot, thatn change color to a dark one. It first appeared on the bottom leaves (2nd internode) and then it moved upwards. The rest of the leaves look green and healthy (only slight chlorophil discoloration on some).
I am growing in soil with a pH of 6.5 - 7 (as written on the bag), I haven`t used fertilisers yet, because the plants are too small,
and I have just transplanted to bigger pots (4gallons) to start LST on them.
The temperatures are staying at a max. of 72 F, and the humidity at about 40%.
I use tap water (filtered with charcoal active filters) to feed them, and I am sure I didn`t overwater.
The lights stay at about 1-2in from the top (CFLs for now with a 18/6 cycle).
Normally I wouldn`t worry if it was only a couple of leaves, but it seems the the browning is moving upwards to the younger leaves. I don`t think it is a pest, because I have examined the plants from top to bottom, and no sign of them.
It seems that only the B.B. is affected (because I have some BBG. and they seem to be fine). Maybe the B.B. is more sensitive to some nutrient defficiency. I can`t figure it out, that`s why I`m asking for your help.
This picture was taken a few days ago, when the browning began showing:
(please click on them for bigger pictures)
and this is what I have captured today:
And these are the macros:
The brown spots apear from the center of the leaves, first as a yellow spot, thatn change color to a dark one. It first appeared on the bottom leaves (2nd internode) and then it moved upwards. The rest of the leaves look green and healthy (only slight chlorophil discoloration on some).
I am growing in soil with a pH of 6.5 - 7 (as written on the bag), I haven`t used fertilisers yet, because the plants are too small,
and I have just transplanted to bigger pots (4gallons) to start LST on them.
The temperatures are staying at a max. of 72 F, and the humidity at about 40%.
I use tap water (filtered with charcoal active filters) to feed them, and I am sure I didn`t overwater.
The lights stay at about 1-2in from the top (CFLs for now with a 18/6 cycle).
Normally I wouldn`t worry if it was only a couple of leaves, but it seems the the browning is moving upwards to the younger leaves. I don`t think it is a pest, because I have examined the plants from top to bottom, and no sign of them.
It seems that only the B.B. is affected (because I have some BBG. and they seem to be fine). Maybe the B.B. is more sensitive to some nutrient defficiency. I can`t figure it out, that`s why I`m asking for your help.
