Helpppppp what the heck is wrong

[Desert Rose]

Anyone seen this before? I gave cal mag and it didn’t help so I amended rock phosphate and flushed with Epsom salts about 5 days ago and just today the problem has gotten worse though it did halt the issue for a few days. I’m thinking some kind of root issue? It is a very old plant that I was holding for about 6 months or more. Maybe should’ve taken a cut and grown it fresh?


Any insights would be appreciated. Thank you ?

 

[VAHomegrown]

Far from an experts opinion, but I think they may have been overfed with nitrogen and that can cause a magnesium and/or potassium lockout. The calmag, flush and rock phosphate may have been a little much for them and caused the leave damage . I run a very hot soil mixture and run into this with plants quite often. Also check your soil PH. If it's above 7.0 the plant will have a harder time uptaking the calmag and potassium. I would personally check the soil PH and if it is high I would run another flush through it with PH'd water only, then give a very light feeding of earth worm casting tea and see if she recovers.

 

[Hugh Jass]

I'm going to wait for more knowledgeable folks to drop by, BUT

 

[VAHomegrown]

I'm going to wait for more knowledgeable folks to drop by, BUT
View attachment 125244

@BH need a pro's advice!

 

[Desert Rose]

And I’ll add that fade is normal it’s not part of the issue…

Unless it is ? but it faded like that last run and had no ill effects

 

[DopeDaniel]

Anyone seen this before? I gave cal mag and it didn’t help so I amended rock phosphate and flushed with Epsom salts about 5 days ago and just today the problem has gotten worse though it did halt the issue for a few days. I’m thinking some kind of root issue? It is a very old plant that I was holding for about 6 months or more. Maybe should’ve taken a cut and grown it fresh?
View attachment 125242
View attachment 125243
Any insights would be appreciated. Thank you ?

It looks like the affected leaves are only at the perimeter where they may have been touching the tent? Foliar feeds? Condesation?

 

[Desert Rose]

It looks like the affected leaves are only at the perimeter where they may have been touching the tent? Foliar feeds? Condesation?

Unfortunately no, the plant is not touching the tent anywhere

 

[Skunky Dunk Farms]

To my old eyes it appears to be earlier damage from light heat/exposure/contact?

 

[Schwaggy P]

Anyone seen this before?

I'll add to the confusion.

To me, looks like a phosphorus deficiency. Is this a pic from the top of the plant or is this mid-to-lower? (P-defs usually start from lower) In high levels, calcium is an antagonist to phosphorus so the cal-mag not helping would make sense assuming a P-deficiency. The rock phosphate would take longer than 5 days to provide bioavailable P to the plant, so that not helping doesn't necessarily negate the P-deficiency hypothesis. Purple petioles are another sign of P-def but I can't see any in the pics and you've stated that the coloring is normal for this plant so maybe a comparison of purple color relative to healthier leaves can help. The amorphous dark blotches in the leaves are what usually leads me to P-def.

Phosphorus deficient leaf (left) vs your leaf (right)

 

[Desert Rose]

To my old eyes it appears to be earlier damage from light heat/exposure/contact?

That is a possibility maybe. I can try and raise the light a bit.

I'll add to the confusion.

To me, looks like a phosphorus deficiency. Is this a pic from the top of the plant or is this mid-to-lower? (P-defs usually start from lower) In high levels, calcium is an antagonist to phosphorus so the cal-mag not helping would make sense assuming a P-deficiency. The rock phosphate would take longer than 5 days to provide bioavailable P to the plant, so that not helping doesn't necessarily negate the P-deficiency hypothesis. Purple petioles are another sign of P-def but I can't see any in the pics and you've stated that the coloring is normal for this plant so maybe a comparison of purple color relative to healthier leaves can help. The amorphous dark blotches in the leaves are what usually leads me to P-def.

Phosphorus deficient leaf (left) vs your leaf (right)
View attachment 125248

That is the top of the plant but the issue is occurring on the oldest leaves. From my googling it does appear P deficiency could be the culprit and ya I was thinking the same about the release of the rock phosphate as well. It is quite coarse and I was hoping to find mineralized phosphate but my store only had the rock.

 

[thesunnyvalekid]

I'll add to the confusion.

To me, looks like a phosphorus deficiency. Is this a pic from the top of the plant or is this mid-to-lower? (P-defs usually start from lower) In high levels, calcium is an antagonist to phosphorus so the cal-mag not helping would make sense assuming a P-deficiency. The rock phosphate would take longer than 5 days to provide bioavailable P to the plant, so that not helping doesn't necessarily negate the P-deficiency hypothesis. Purple petioles are another sign of P-def but I can't see any in the pics and you've stated that the coloring is normal for this plant so maybe a comparison of purple color relative to healthier leaves can help. The amorphous dark blotches in the leaves are what usually leads me to P-def.

Phosphorus deficient leaf (left) vs your leaf (right)
View attachment 125248

I think you might have the best answer my friend.

 

[BH]

@BH need a pro's advice!

\
^ I didn’t even see this till now lol
before shooting in the blind, I want to ask a few questions but also give the chart to also show visually if it’s based on picture what it could be.


what medium do you run?
what stage of the plant are they in right now
all plants are certain pheno’s showing this issue?
light strength / ppfd
co2?
Water used: r/o , if not do you get ur water analysis to see if it has enough trace/micros?


visually looks like phos , but who to say u got lockout of p. If not one of the most common issues exp if using strong synethetics . Issue with many nutes they don’t show their deficiency for along time. So to correct it ina fast bloom it’s hard.

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one of my keepers (Helen back )this round looks just like that, never acted that way before and all pheno’s around it are okay. but once I raised my dry amendments it seemed to be okay. I started seeing it 1-3rd week of bloom . The more I see u saying your using old moms, the Helen plants I did were also old moms and they revegged to be able to be cloned. If ur other plants are okay. i woild say keep trucking and feed em as any other plant.