Been having this problem for about two weeks. It started at the bottom of the plants with the older leaves. There is a yellowing all over one of the strains, the other strain seems a little more resistant. I am growing in a soiless mixture, indoors with Fox Farm. I am using a thousand watt HPS, with co2 enrichment. My last crop was affected the same way, but I thought it was do to the heat. I had a problem with the temperature while trying to get the ventilation right. Anyhow, if you look at the plants in the foreground of two of the pics, you can see they are not affected in the same manner, yet...
The younger plants are at 1 1/2 weeks. Any help is appreciated. Thanks.
The younger plants are at 1 1/2 weeks. Any help is appreciated. Thanks.
, what strain ?
