can't figure out issue. need help.

M4sT3rM1nD

M4sT3rM1nD

Well-Known Member
About 2 weeks ago 2 of my 4 autos started showing spots on the fan leaves. I ph'd a 5 gallon jug and mixed in flora grow nutrients. I did the The recommended dosage on the bottles. The issue still persisted and I made a post on here and was told my Ph was too high. I watered with straight water ph'd at 6.5. Checked run off it was 6.5. So I assumed this wasn't my issue. I went and bought some calmag. I watered with 20ml for 5 gallons and have yet to see any improvements in the leaves. The plants were started August 1st. They're in 3gallon pots of ffof with a 50% perlite mix. My temps are at 75 and humidity is around 50%
 

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Diabolical666 said:
PIc of whole plant
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This is the best I can do until I get home from work.. it started affecting new growth first then started in on all the other growth. The lighter colored leaves are yellow. The veins and outside of the veins are green. Its affected all 3 plants except the back left.
 

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IM thinkin too much nitrogen or not enough... when you have a N toxicity/deficiency its like a domino effect of lockouts of cal and mag. ONly you would know if its either...but Im leaning towards toxicity due to some of the leaves cupping
 
Diabolical666 said:
IM thinkin too much nitrogen or not enough... when you have a N toxicity/deficiency its like a domino effect of lockouts of cal and mag. ONly you would know if its either...but Im leaning towards toxicity due to some of the leaves cupping
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So should I flush or just continue with phd tap water?
 
3 weeks on the 3. Probably a month left on the blue mammoth. It was affected the worst and slowed way down. It started picking back up a bit but the leaves are still yellow.
 
M4sT3rM1nD said:
3 weeks on the 3. Probably a month left on the blue mammoth. It was affected the worst and slowed way down. It started picking back up a bit but the leaves are still yellow.
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if it was a week id just water with water, but your leaves turn yellow and die back end of flower anyway,,,, the problems the brown in between the vains , idk what that is ,,
 
Okallright said:
if it was a week id just water with water, but your leaves turn yellow and die back end of flower anyway,,,, the problems the brown in between the vains , idk what that is ,,
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It started off as copper/Brown spots on the outside of the fan leaves.. then they started yellowing.. the yellowing got worse and the spots got worse and now we're here. I've tried everything I know to try.. it looked like a calcium issue so I got cal mag. Noob question but will yellow leaves ever turn back to green once they've yellowed?
 
M4sT3rM1nD said:
It started off as copper/Brown spots on the outside of the fan leaves.. then they started yellowing.. the yellowing got worse and the spots got worse and now we're here. I've tried everything I know to try.. it looked like a calcium issue so I got cal mag. Noob question but will yellow leaves ever turn back to green once they've yellowed?
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https://onedrive.live.com/redir?res...uthkey=!APqc_-WVSCA8g_w&v=3&ithint=photo,jpeg

defec and toxi diagram

the leaves and from left to right = early stage and later stage in flower .
 
M4sT3rM1nD said:
It started off as copper/Brown spots on the outside of the fan leaves.. then they started yellowing.. the yellowing got worse and the spots got worse and now we're here. I've tried everything I know to try.. it looked like a calcium issue so I got cal mag. Noob question but will yellow leaves ever turn back to green once they've yellowed?
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No, old yellow leaves won't get back to green. its the new growth that you have to watch.
 
Damn it, I'm having this same problem but I flush twice a week it just keeps getting worse no matter what i do with the nitrogen, someone said sulfer but it's not that either.. it severely slows flower growth and I am fucking pissed!
 
subgrounds said:
Damn it, I'm having this same problem but I flush twice a week it just keeps getting worse no matter what i do with the nitrogen, someone said sulfer but it's not that either.. it severely slows flower growth and I am fucking pissed!
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I hope mine gets better. I'm gonna try to flush on the next watering with PhD water and cal mag. I'll inbox u if I get any good results.
 
It could be iron deficiency. You get dark veins but the leaf goes pale then yellow between the veins. Also check for holes in the leaf. Mites cause problems that can be confused with deficiencies. What nuts. Doesn't look like toxicity as the leaf is curling down. With N toxicity the leaf curls up and is super green and can be very shiny
 
ballist said:
It could be iron deficiency. You get dark veins but the leaf goes pale then yellow between the veins. Also check for holes in the leaf. Mites cause problems that can be confused with deficiencies. What nuts. Doesn't look like toxicity as the leaf is curling down. With N toxicity the leaf curls up and is super green and can be very shiny
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I use GH flora series
 
Ok nuts should be fine, I run the same here. You using tap water I assume and now ph every watering? You won't be getting any new growth as your close to done but you should be able to get undamaged leaves back to a healthy green. The spots you see are there any holes around the middle of the spot?
 
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