I'm sure most of you will know what this is right away, but I can't find what it is.
I'm not too worried about it as i'm only a week or so from flushing, but I'd like to get rid of it if possible
I'm growing in ebb/flow in hydroton, using lucas formula + floralicious plus at about 1400 ppm. Try to keep ph fluctuating around 5.8.
The problem is worse than this picture shows, and it only appears on some leaves (older). I have 5 plants in this tray, and one has become completely taken over by it while another shows very little if none of the effect and they are all the same strain from the same mother.
The leaves are turning black in the centers, and yellow on the edges. I was thinking it could be light burn, as i'm under a 1000 watt hps at about 22" away. I've seen light burn on my plants before in the past though, and it didn't look like this. One plant has just become extremely dark with no yellowing, and pretty much stopped growing.
Pic: (you can't tell here, but those centers of the leaves is very, very dark)
I'm not too worried about it as i'm only a week or so from flushing, but I'd like to get rid of it if possible
I'm growing in ebb/flow in hydroton, using lucas formula + floralicious plus at about 1400 ppm. Try to keep ph fluctuating around 5.8.
The problem is worse than this picture shows, and it only appears on some leaves (older). I have 5 plants in this tray, and one has become completely taken over by it while another shows very little if none of the effect and they are all the same strain from the same mother.
The leaves are turning black in the centers, and yellow on the edges. I was thinking it could be light burn, as i'm under a 1000 watt hps at about 22" away. I've seen light burn on my plants before in the past though, and it didn't look like this. One plant has just become extremely dark with no yellowing, and pretty much stopped growing.
Pic: (you can't tell here, but those centers of the leaves is very, very dark)
