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yellow new growth cannabis

Highlighter Yellow Leaves (new Growth)BIG PROBLEM HELP>>.

AliasAO

Hoping to fix this current problem with the help from the farms collective intelligence.

A few of my clones have started to grow SMALL Highlighter yellow color leaves ONLY on the new growth. All old growth is still green and not affected.

Im thinking it could be a deficiency but Im leaning more towards a PH imbalance or extreme temp changes??

If anyone has experienced and conquered this problem please pass on the knowledge because my little ladies are suffering.’ Here is a Pic. Its my most extreme case:

Thanx friends and fellow farmers :harvest:

motherlode
@Rolln_J

they look overfed honestly – not the best pic but thats my guess

whats your ph, ppm and temps – what ya feeding them and whats your soil mix

AliasAO

they look overfed honestly – not the best pic but thats my guess

whats your ph, ppm and temps – what ya feeding them and whats your soil mix

They have been transplanted for about a week into cups with a Coco perlite mix. I haven’t feed them at all with nutes. Only ph adjusted water at about 6.1-6.3 I water them once every 2-3 days depending.

Today I flushed them with Ph Adusted water. I’m wondering if it could be a defiency because of the lack of nutes left in the soil after a few waterings.

Maybe I should start to feed??

I’ve never seen this before, the plants in my tent that i took the cuttings fromare perfectly healthy but the ones outside of the tent under the T5 FLOs are unhealthy even tho I’ve been feeding them nothing but PH 6.1-6.3 water. Temps for the plants under the T5s in in between 74-77 degrees.

AliasAO

Here is a pic from above. Notice how The new leaves are deformed and very yellow.

Could it be possible that my soil is hot?

Seamaiden
Living dead girl

I’ve never seen that either. Do the mother plants have crinkled leaves, too? Bottom looks totally overfed (makes me think lockout) and the top looks like a major iron, zinc or other deficiency.

Let me put up an attachment before my husband spirits me off to eat.

AliasAO

I’ve never seen that either. Do the mother plants have crinkled leaves, too? Bottom looks totally overfed (makes me think lockout) and the top looks like a major iron, zinc or other deficiency.

Let me put up an attachment before my husband spirits me off to eat.

Thanx for the tables Sea, glad u were able to get those posted before eating.

Im in agreement with you about the new leafs being a deficiency, but the two plants that I took the clones from are currently very healthy and nearing the end of the flower stage. Its weird because the moms show no sign of this weird yellow growth. Only the plants that are kept under my T5 FLOs outside of the tent are acting this way even tho both water regimens and temp conditions are exactly the same. My T5s were kept originally about 6 inches from the tops of the little plants, then i thought it may have been light burn or too intensive light so i moved the lights up to about 12 inches above the plants.

I did use an older bag of coco to plant the others outside of the tent, The bag was probably about 2 months old? Do CoCo based mediums lose their nutes naturally with time?

Im starting to think that I should try to feed the little ones using a smaller dose then described, just to see if feeding with nutes helps?

Do you think trying to feed would be the best way to trouble shoot or do u think I should try another approach?

Thanx agian Sea for the help.

tasiga
AliasAO

Makes sense. thanxx for the advice.

What Micro nutes would u suggest I try first?

tasiga
AliasAO

In hopes of a remedy.

Seamaiden
Living dead girl
Cannobi Genetics

I would flush the medium with H2O with a PH of 5.8 and check your run off. I bet your locking your plant out. I would then add a well rounded nute solution again around 5.8 PH and 1/4 strength nutes. I like to use “Mother Plant” brand nutes for mothers and plants fresh out of the cloner. It has a nice well rounded dose of nutes micro and macro without trying to push the nutes up their roots. Some people feed their mother plants a veg formula and are adding too much of what the plant doesn’t need. When I run into an issue I like to go back to the basics. I look at the air flow, RH, temp, light distance, CO2 availability, photo period, moisture in the medium, pests, then I go to nutes,ph,solution temps compared to environment temps. For instance if it’s 80*F in your “room” you want to feed your plants with a cooler than 80*, more like 68*F to 72*F, to help them cool down. If your environment is jacked you add the chance that environment is playing a part in your plants “deficiency”.

It looks like it had a great deal of N at one point and after that high N incident it got everything flushed out of it, OR locked out a certain nute due to high concentrations of say P locking out Fe (iron). You said you took the cut during bloom?

“Iron (or EDTA) can be locked out if the pH goes too high. Iron deficiency can show itself as slow growth combined with yellowing, almost whitening leaves. If your pH level is kept below 7, you should never experience Iron deficiency. If there is too much Phosphorus (P) present in the roots then Fe will be locked out. If you do suspect a low Iron level, lower you pH to about 6.3 – 6.5 until normal growth resumes. An excess of Iron (usually caused by too low a pH), will lock out Potassium, Manganese and Nitrogen.” -quoted from RO

I think it’ll pull through you just need to clean the slate and give her what she’s asking for. Best of luck brotha.

AliasAO

Thanx for popping back in Sea. I was also thinking it had something to do with sulfur based on your charts, Im headed to my local grow shop to pick up some remedies in about 30 mins. Once I supplement a few nutes ill give it a day or two of observation and ill give an update.

I cant say this en0ough, thank you so much for you assistance and help, sincerely from me and my plants.

I would flush the medium with H2O with a PH of 5.8 and check your run off. I bet your locking your plant out. I would then add a well rounded nute solution again around 5.8 PH and 1/4 strength nutes. I like to use “Mother Plant” brand nutes for mothers and plants fresh out of the cloner. It has a nice well rounded dose of nutes micro and macro without trying to push the nutes up their roots. Some people feed their mother plants a veg formula and are adding too much of what the plant doesn’t need. When I run into an issue I like to go back to the basics. I look at the air flow, RH, temp, light distance, CO2 availability, photo period, moisture in the medium, pests, then I go to nutes,ph,solution temps compared to environment temps. For instance if it’s 80*F in your “room” you want to feed your plants with a cooler than 80*, more like 68*F to 72*F, to help them cool down. If your environment is jacked you add the chance that environment is playing a part in your plants “deficiency”.

It looks like it had a great deal of N at one point and after that high N incident it got everything flushed out of it, OR locked out a certain nute due to high concentrations of say P locking out Fe (iron). You said you took the cut during bloom?

“Iron (or EDTA) can be locked out if the pH goes too high. Iron deficiency can show itself as slow growth combined with yellowing, almost whitening leaves. If your pH level is kept below 7, you should never experience Iron deficiency. If there is too much Phosphorus (P) present in the roots then Fe will be locked out. If you do suspect a low Iron level, lower you pH to about 6.3 – 6.5 until normal growth resumes. An excess of Iron (usually caused by too low a pH), will lock out Potassium, Manganese and Nitrogen.” -quoted from RO

I think it’ll pull through you just need to clean the slate and give her what she’s asking for. Best of luck brotha.

Thanx for the in depth response my friend. With your great response you basically reinforced what I was thinking and needed to hear. Yesterday I took the proactive approach and first took the PH levels of the run off water from the soil. To my surprise the run off was at about 5.5 Ph, so what I did was flush with PH adjusted water @6.3-6.4 to bring the Soil PH up to about 6.0 or so.

The plants have responded better but Im def thinking Im going to have to add some nutes. As I stated to Sea above ill be headed to my local grow spot to grab some nutes.

Is there a specific “Mother Plant” brand nute that you would recommend me picking up?

Right now I currently run the whole Fox Farms nute line for my budding ladies but i like the sound of an Alternative brand of nutes for my clones and Mothers.

How much do you add of each A & B per GALLON of water. Do you follow the manufacturer directions and give the 3-4 tsp each per GALLON? And how often do you feed with “Mother Plant”?

Thanx Crom you are a plant life safer. Thanx for the help and words of wisdom.

Hoping to fix this current problem with the help from the farms collective intelligence. A few of my clones have started to grow SMALL Highlighter…