Glenda - Quebec Cannabis Seeds GG

Yes its a burn, but fresh one, previously you were not overfeeding, girl color is good. In coco only right way is to flush with ROOM temperature, 5.9-6.0 ph, 3x amount of pot size, so prepare sponges for run off, buckets for collecting and so on. I would highly recomend to add 0.25-0.5 ml/L calmag to last 2 liters. Next watering give 25% strenght feed of recommend dose by your nute company schedule. If she takes, aka pots dry out regularly and normally - you can return to full feed schedule, just maybe do feed/feed/plain water cycle in the future.

While I respect Creepy_Steve, BTi goes after leaf CHEWERS, not leaf SUCKERS... get some Dr. Zymes or Spinosad if you can (I know there's controversy in Canada about Spinosad but I think it's the only country in the world that does not recognize it as being organic).... Again, either of these can be used no matter what stage your plant is in - and can be used up to the day of harvest without any ill effects/tastes being transferred to your smoke....