Bill Bates
Member
Some of my fan leaves are turning yellow at the edges. Some are also curling up at the edges. What can the matter be?
Fan leaves turning yellow at the edges
- Thread starter Bill Bates
- Start date
Bill Bates
Member
Bill Bates
Member
Dudes- I'm freaking out a little bit here! Since yesterday more leaves are turning yellow at the edges and curling up at the edges and the tips. What is happening? Ph is 7. Temp 62°-65°
Nafydad420
Well-Known Member
7.0 PH is too high, also 62-65 is a little chilly. but looks to me like a magnesium deficiency.. whats your setup and routine?
drsaltzman
Well-Known Member
I get the middle pic from time to time.
Usually I just use PH water, 1/2 strength CalMag and full strength Recharge for a couple days before resuming nutes.
It's not NPK. Something micro and PH related.
Usually I just use PH water, 1/2 strength CalMag and full strength Recharge for a couple days before resuming nutes.
It's not NPK. Something micro and PH related.
Bill Bates
Member
280w hps in a 2' x 4' area in my basement. I was running a small heater which brought temp up to about 70+/-, but it went south on me. I've been using 5-5-5 miracle gro stuff (I know it's not ideal, but it's what I had) but since I didn't want to use too much nitrogen during budding, I cut it out & used clear water for the last 2 waterings. This leaf condition has just begun in the last 4 or 5 days.
Bill Bates
Member
worldspawn
Well-Known Member
Check out this page - http://www.growweedeasy.com/why-cannabis-leaves-yellow
It has a lot of pictures (symptoms) matched to causes. I would say looking at the pics and you said the ph was 7 its probably too high ph causing a magnesium deficiency, like other growers said. Is it in soil?
Mineral absorption to ph for Soil - http://www.growweedeasy.com/sites/g...trient-deficiency/soil-ph-chart-marijuana.jpg
Mineral absorption to ph for Hydro -
http://www.growweedeasy.com/sites/g...deficiency/hydroponics-ph-chart-marijuana.jpg
Personally I ph to 6.1 and over two waterings it will drop to 5.5 (in my recirculating reservoir) and then i set it back which gives a nice coverage.
I wouldn't be letting temps go below 65, 70-79 is where i try to keep mine. Even if its not causing your problems, low temps equate to slow growth.
It has a lot of pictures (symptoms) matched to causes. I would say looking at the pics and you said the ph was 7 its probably too high ph causing a magnesium deficiency, like other growers said. Is it in soil?
Mineral absorption to ph for Soil - http://www.growweedeasy.com/sites/g...trient-deficiency/soil-ph-chart-marijuana.jpg
Mineral absorption to ph for Hydro -
http://www.growweedeasy.com/sites/g...deficiency/hydroponics-ph-chart-marijuana.jpg
Personally I ph to 6.1 and over two waterings it will drop to 5.5 (in my recirculating reservoir) and then i set it back which gives a nice coverage.
I wouldn't be letting temps go below 65, 70-79 is where i try to keep mine. Even if its not causing your problems, low temps equate to slow growth.
Last edited:
Bill Bates
Member
Welp, here they are, for the last 2 days. After using a diluted vinegar/water solution (1cup/gallon) THIS is my result! FUCK!! Ph is down to 6 - 6.5 but this thing seems to be dying.The soil is really, Really wet & all I can do is stand & watch.
Attached Files:
Attached Files:
a" style="margin: 0px; padding: 10px 10px 0px; overflow: hidden; zoom: 1; background: url("styles/xpert/xenforo/gradients/category-23px-light.png") center top repeat-x rgb(255, 255, 255); border-radius: 5px;">
20180220_073832.jpg
File size:
787.1 KB
Views:
0
20180220_073838.jpg
File size:
613.6 KB
Views:
0
20180220_073846.jpg
File size:
627.1 KB
leather lungs
Well-Known Member
Looks like overwatering and to much nitrogen
Bill Bates
Member
Overwatered definitely. When i first attempted to lower the ph, my vinegar/water solution was too strong & the ph shot down to below 5. In a panic, I flushed it with clear water thinking (correctly, I assume) that it would bring the ph back up. What concerns me is that this particular plant was just starting to explode with new buds. I currently have it sitting in front of the fan & heater (temp about 72°) to try to help dry out the soil some. I imagine that it will come around to some degree but she was just so beautiful, you know? Its my first grow & I guess I'm like a first time parent. Do you have any other suggestions? How long should I wait before adding water & nutrients again?
Bill Bates
Member
So, the weather finally broke here & I have placed my 2 females out in the sun... it's about 73°, sunny & slightly breezy. Hopefully, this will help.
leather lungs
Well-Known Member
Watch out for bugs if you bring them back inside.
Bill Bates
Member
I have ladybugs out the yingyang. Critters don't worry me so much. What worries me is am I doing this right?
nc208
Well-Known Member
Damn bro, you ain't lying those first few pics your plants are covered in ladybugs.
Bill Bates
Member
Day 48
This is what blue himalaya #1 looks like right now. Soil is still saturated so i drilled some more holes in the buckets and aerated thoroughly with a probe. pH is 6 - 7 depending on where you stick the meter (deeper is more acid). I have put it under led fluorescents in an attempt to stimulate leaves. They are on 20/4 schedule. Please help me put this fire out! Or is it even possible?
This is what blue himalaya #1 looks like right now. Soil is still saturated so i drilled some more holes in the buckets and aerated thoroughly with a probe. pH is 6 - 7 depending on where you stick the meter (deeper is more acid). I have put it under led fluorescents in an attempt to stimulate leaves. They are on 20/4 schedule. Please help me put this fire out! Or is it even possible?
