i have 22 blue cheese from cuttings, about 2 weeks into veg in b&q multipurpose compost, feeding ecolizer grow-up and root-up at an e.c of 1.4. a lot of my plants have recently started showing leaves like this at various different heights on the plant so i'm pretty sure its not heat. i am pulling off the offending leaves and by the next morning more are showing the same problem. temps are 70F lights off, 80F lights on, with plenty of ventilation under 2 x 600w hps, i can't comment on humidity as my thermometer has stopped working for humidity, but i would guess it is of a reasonable level and not the cause, air in comes from outside in the north of england where its fairly cold and about 84% humidity so i can't see it being too dry in there, and with 2 600s i can't see it being to wet either, all the other leaves look healthy, but can turn like this literally overnight, any help would be massively appreciated, as at this rate there'll be no plant left in a week! cheers
any ideas at all? i've gone this morning and had to pull even more leaves off them, some of the plants are massive now and others beginning to look no bigger than when they came as cuttings i'm having to pull that many leaves off! i'm thinking it could possibly be L.S.F, a problem thats been getting more and more prevalent in the uk in the last few years, dunno if you guys get it much at all in the U.S, which is where i'm guessing most of you are, basically it's a fungus caused by spores in the air pulled in through the extraction, never used to affect the ganja but it would seem that over the past few years its adapted to them. cheers guys