Thanks for the reply. I suppose that is entirely posssible, BUT...something I meant to mention. There are some plants among the others that seem almost completely unaffected by this problem. Most, BUT not all, are of a different variety. Also, in almost all the cases, the problem has started toward the bottom and moved up the plant. If it is in fact the Growth Excel causing the problem, than why are the tops OK?? Just a thought. Again, thanks. Any other ideas would be appreciated.
jpriest66 Reviewed by jpriest66 on . rust spots getting worse (pics) OK, hoping someone can help. These plants are 35 days old (day 28 of 12/12). I am using the Advanced Nutrients 2+ Bloom (medium feeding) program. I continually give them 2 feedings of nutrient (at 6.3ph) and 1 feeding of regular water (at 6.3ph). I foliar spray with Growth Excel just before the lights come on about 2-3 times a week (tho I dont PH the water I use for this foliar spray - should I?). They are growing in ProMix HP under a couple of 1000 w HPS's. Temps are between 17c/65f and Rating: 5