Top leaves turn brown and curl upwards
- Thread starter Findus
- Start date
Findus
Member
Thanks for replying. Bad thing is that they turn brown and get dry. These pics few days old. If i twist the leaves they become dusty...Plants look good.
What you seeing is natural maturation of the leaves and expect to see more
No worries, my friend
They don´t look like the normal autumn colour
Like the 14th grow and never had this
Look at this:
Findus
Member
No, more and more plants / tops doing this now. I watered today with 1.0 EC and the drain had 0.8.
I will increase the EC anyway I think.
Thanks
JohnDee
Well-Known Member
Hi Findus,
I would not consider that to be normal...with all due respect to Jim. My first thought was light burn till I looked at the picture. I would not increase feeding. That's not the answer...though I would suggest bumping up Mg. I see dark tips, burning on the edges and interveinal chlorosis. In fact maybe drop the ec of nutes when you add more Mg so the ec stays the same. Just less food and more calmag or Epsom salts...whatever you use.
JD
I would not consider that to be normal...with all due respect to Jim. My first thought was light burn till I looked at the picture. I would not increase feeding. That's not the answer...though I would suggest bumping up Mg. I see dark tips, burning on the edges and interveinal chlorosis. In fact maybe drop the ec of nutes when you add more Mg so the ec stays the same. Just less food and more calmag or Epsom salts...whatever you use.
JD
Capn-Crunch
Well-Known Member
It looks like a Mg issue to me as well
AquaTerra
Well-Known Member
The margin curling could be from too low of humidity or possibly heat stress from the light, the brown tips would be from salt buildup/nutrient burn. The other discoloration in the laves from stress or again overfeeding. Some strains like Bubba Kush will get purplish looking leaves in week 6-8.
Findus
Member
Hey guys,
thanks for replying! I think they aren´t overfed. I got the problems 7-8 days after the last feeding (0.6EC, after that pure water). Always a good amount of dran, will check the roots as soon as the pot get lighter.
My old leaves look exactly like a potassium deficiency. Maybe they have a huge K def?!
The problem always starting at the edges.
Hope i get a good yield. I don´t even have a single gram at home......
thanks for replying! I think they aren´t overfed. I got the problems 7-8 days after the last feeding (0.6EC, after that pure water). Always a good amount of dran, will check the roots as soon as the pot get lighter.
Could be Mg or light burn. But I´ve never seen a Mg deficiency looking like that.... Will Add more Epsom and lower the EC.
Yes that is the problem...
My old leaves look exactly like a potassium deficiency. Maybe they have a huge K def?!
Humidity and temps kinda perfect. Maybe lightburn. I don´t have the typical burned tips from nutrient burn.
The problem always starting at the edges.
Hope i get a good yield. I don´t even have a single gram at home......
