White widow in need of help!

anon1122

anon1122

Well-Known Member
Ok, the plants were planted from seed into rockwool cubes roughly 3 weeks ago.

600 mh conversion bulb
Fox farm line of nutes
plants are being fed a 2-1 ratio of big bloom and grow big as per feeding chart. started very light with nutes and working their way up.
170ppm at the moment.
PH is kept between 5.8 and 6.0
Low 80's in the day and low to mid 70's during the night
humidity is 40-50%

Brown/grey/rust colored spots have been appearing on leaves. It took out the first set of jagged leaves then moved onto the first set of 3 jaggeds, now it's starting on the first set of 5 jaggeds.

Everything in my tent seems to be ok with the exception of seeing one or two gnats a day in there.

I apologize about the low low resolution.


Any help that gets them back on track will definetly get +rep.
 
om3gawave

om3gawave

Active Member
The pictures make it hard to tell. I want to point it to a magnesium deficiency. Create an epsom salt and water solution by mixing one gallon HOT water (not boiling) with one tablespoon of epsom salts. Put it in a spray bottle and spray the tops and bottoms of your leaves. New growth should look a lot better, but your bronze leaves will probably stay the same.
 
sanyard

sanyard

Well-Known Member
anon1122 said:
Ok, the plants were planted from seed into rockwool cubes roughly 3 weeks ago.

600 mh conversion bulb
Fox farm line of nutes
plants are being fed a 2-1 ratio of big bloom and grow big as per feeding chart. started very light with nutes and working their way up.
170ppm at the moment.
PH is kept between 5.8 and 6.0
Low 80's in the day and low to mid 70's during the night
humidity is 40-50%

Brown/grey/rust colored spots have been appearing on leaves. It took out the first set of jagged leaves then moved onto the first set of 3 jaggeds, now it's starting on the first set of 5 jaggeds.

Everything in my tent seems to be ok with the exception of seeing one or two gnats a day in there.

I apologize about the low low resolution.


Any help that gets them back on track will definetly get +rep.
Click to expand...
Bro, I'm also growing widows and I seem to have the same blackish spots coming up on my leaves. It doesn't seem to affect much. I also have a thread concerning this issue, however, from what I'm reading here this could just be some natural defection. I would imagine in later growth that black will go away.

As for the yellow/rust colors occurring I could only think of nutrient burn/deficiency.
From what I've read on here a lot of people get a LITTLE yellow on their leaves in veg because they're pushing their plants to grow quickly. If that's the case there's nothing to worry about.

Good luck bro, I hope someone more knowledgeable posts on this thread to better understand what's going on.
 
doc111

doc111

Well-Known Member
anon1122 said:
Ok, the plants were planted from seed into rockwool cubes roughly 3 weeks ago.

600 mh conversion bulb
Fox farm line of nutes
plants are being fed a 2-1 ratio of big bloom and grow big as per feeding chart. started very light with nutes and working their way up.
170ppm at the moment.
PH is kept between 5.8 and 6.0
Low 80's in the day and low to mid 70's during the night
humidity is 40-50%

Brown/grey/rust colored spots have been appearing on leaves. It took out the first set of jagged leaves then moved onto the first set of 3 jaggeds, now it's starting on the first set of 5 jaggeds.

Everything in my tent seems to be ok with the exception of seeing one or two gnats a day in there.

I apologize about the low low resolution.


Any help that gets them back on track will definetly get +rep.
Click to expand...
I had a very similar issue with my white widows. It turned out to be a magnesium deficiency. I started using cal-mag plus as FF nutes don't seem to have enough mag. (I'm using FF nutes also). If you are using r/o water or distilled you especially may need some cal-mag. Best of luck my friend.
 
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