Please Help ,leaves problem getting bad

perkele

perkele

Well-Known Member
Hi guys,
I've started my first grow 81 days ago and I've started the flowering 32 days ago...so I am almost at the end. The plant grew well and many guys on the forum helped me with my problems and again I want to thank them ( Lime, Mistyriffs, Matthebrute and all the others). You can find the whole plant history in detail here https://www.rollitup.org/grow-journals/496280-perkeles-growing-journal-first-plant.html .

To make a short summary: soil - IMG-20111118-WA0004.jpg

Lights - 4 CFL's DL 35 w, 6500K and 2 CFL's 20 w 2800K

Temp - 20-22 celsius

Nutrients - MG - 3 cups every second watering

Problem - it's starting with small black/purple dots all over the leave and after it's changing color and has the aspect of rust (?) at the moment more then 70% of the leaves have this problem. At the beginning opinions were Magnesium deficit. For that, last Monday I gave epsom salt. Since then, the dots are spreading, no improvement. Now I am thinking maybe it is Ca deficit??? For that I've ordered a Ca Solution from Canna. It will get to me next Monday. I am afraid that it will be too late and I don't even know if it's indeed Ca deficit. I've searched on the internet on many forums, and charts with nuts deficits and I wasn't able to find any picture that is looking like my leaves. (P.S. I've triple checked it for any spider mites and no sign of them)

Here are some pics, guys, please please HELP, I am so close to the harvest and I am afraid I'll loose the plant.

View attachment 2010181View attachment 2010182View attachment 2010183View attachment 2010184View attachment 2010185View attachment 2010186View attachment 2010188View attachment 2010191DSCF2327.jpgDSCF2331.jpgView attachment 2010203View attachment 2010208View attachment 2010211DSCF2335.jpgView attachment 2010215View attachment 2010217
 
perkele

perkele

Well-Known Member
scroglodyte said:
bug bites.....looks like. and over-fed too. check bottom of leaves for tiny moving things
Click to expand...
triple checked it, I have some gnats indeed, but they are neighbors from the beginning and they don't cause this.Nothing else, no spider gnats
 
scroglodyte

scroglodyte

Well-Known Member
if we ignore the spots.......the plant still looks dark and droopy. i would flush them with twice their container capacity, and slow down the feeding.
 
bkbbudz

bkbbudz

New Member
I am almost positive the issue is N toxicity. Flush her good as the chart I posted shows. she is maybe 4-5 weeks away from harvest. After you flush let her get pretty good and dry to get some extra oxygen going into the roots. When she is ready for feeding again, start her small, 1/4 dose and feed every 2nd watering. You may want to step up the dose if you have time, but I would not go over 1/2 dose.
 
scroglodyte

scroglodyte

Well-Known Member
good luck, man......gotta go shovel some snow. i'm gonna collect a few clean barrels of it for garden water. 110 gallons of snow.....lol. or should i go 3, grab 165 gallons?
 
perkele

perkele

Well-Known Member
bkbbudz said:
I am almost positive the issue is N toxicity. Flush her good as the chart I posted shows. she is maybe 4-5 weeks away from harvest. After you flush let her get pretty good and dry to get some extra oxygen going into the roots. When she is ready for feeding again, start her small, 1/4 dose and feed every 2nd watering. You may want to step up the dose if you have time, but I would not go over 1/2 dose.
Click to expand...
I don't understand from where this toxicity. I was feeding her 3 small cups ( smaller does then recommended) for the size of the pot every second watering. And if I'll consider to flush, how is this done? Never done it so far. Just run over water? I was watering her till now with about 3.5-4 liters of water. How much water should I give for the flush? 10-12 liters? From what I know a flush can be very traumatic for a plant, is it?
 
cowboylogic

cowboylogic

Well-Known Member
I would look really hard for mites. Something is causing those spots. And the lower leaf in the pic that is so damaged looks like it had nutrient solution poured on it/came in contact with. Plant looks pretty good otherwise. I do not see any real 'eagle clawing' of the leaves to indicate Nitrogen Toxicity at this point......
 
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