albino and rust spots :( help a bro out

[JAYAR]

Whats up guys I've got a couple of problems with two of my girls.. first off I'm growing in canna coco soil and using canna coco nutrients which are supposed to compensate for cal-mag. I'm using a grownorthern led light.

One think different has rust colored spots on a couple of fan leaves. Someone mentioned it was a cal mag issue but not sure since my nutes have some.


My second issue is a couple of large snow white spots that are soft to the touch on a black cream. Many leaves have a mix of dark and light green but a couple leaves have the white.. I've tried looking but it's not very common. A guy on another forum had it and he just accepted it as albinoism but mine don't look as perfectly symmetrical as his. It's also not light bleaching as the black cream is shorter than the rest of the plants and is 24 inches from the led light.




Not sure what to do but otherwise the plants are ok. Amy help is appreciated. :Sharing One:

 

[az2000]

Regarding the white/bleached symptom, I experienced something like this under T5, so it wasn't possibly related to LED bleaching. The only thing I found that looked like it was this "ph Fluctuations." (<<link). Might be something to consider. It doesn't seem to be a widely-recognized symptom or diagnosis.

 

[GCase]

Looking at the top photo it appears to be nute splash. Think we all get them. What do you think--possible.

Now, I have never encountered the other issue. Looks localized. Maybe Waira will drop by to diagnosis.

Cheers

 

[JAYAR]

Regarding the white/bleached symptom, I experienced something like this under T5, so it wasn't possibly related to LED bleaching. The only thing I found that looked like it was this "ph Fluctuations." (<<link). Might be something to consider. It doesn't seem to be a widely-recognized symptom or diagnosis.

Thanks az2000! I think it only happens to cool guys lol.. just looked over the link - it looks just like the other discolored leaves I have so I think you're on to something. In fact sometimes I water at 5.5other times at 5.7 or 5.8 I didnt think a few points off would do something bad. Thanks yo.

Looking at the top photo it appears to be nute splash. Think we all get them. What do you think--possible.

Now, I have never encountered the other issue. Looks localized. Maybe Waira will drop by to diagnosis.

Cheers

Dang I think you're spot on the think different grew very wide so when I watered I had to pour over the two big fan leaves and only those two are affected. Weird how the water slips right off the leaf but still leaves a residue on it. Thanks C. Grow!!

 

[GCase]

Cheers JAYAR.

 

[Waira]

Hi Jay'- first, a big picture comment: even with nute's that have Ca and Mg in it, sometimes it's just not enough to meet demands,.. gotta be the most common defc. we see here! And it seems I see a lot of Ca defc. issues tied to LED's,...That said, the spotty leaf is kinda giving me fits with diagnosis,...can you get us a pic of the whole plant? Where are the spots showing up, top, mid', lower down,...? The pattern and shape of the spots fit Ca best, but the color is really dark; usually, Ca spots are a lighter rust-tan color.... also, this is a old leaf, and Ca is poorly mobile, usually affecting leaves mid-to top of the plant,... there's a blue-ish tinge to the leaf, and purple stem (often a normal feature, so not the best diagnostic clue!)-- unless this is an artifact of the camera flash! If not, the dark color of the necrotic spots and blue tinge are signs of P defc., but the spot pattern doesn't fit well, usually it creates larger blotches of dead stuff,... Need more info, bud, whole plant pics, what kind of P input there is, and how far into flowering she is....
>> the fully chlorotic bleaching is surrounded by yellowing that's the same shape,..you can see transitional stages too,... those soft to the touch patches, the tissue is still alive, more or less the same thickness and flexibility as the rest of the leaf? ...that bottom pic shows a leaf that looks like the patch dried out crispy,... Oy, this one I dunno,... but it's certainly not going ablino; the splashing of nutes on a leaf won't cause this by itself,... foliar feeding is a common thing to do with many plants... light burn caused by droplets left on the leaf under strong lighting doesn't look like this either,... I'll have to ask around some on this one! I have seen this "bleached out" but still alive tissue before... ** meantime, get us that info plz, and we'll go from there!

 

[JAYAR]

Hey Waira thanks here are the answers to your questions:

As far as the spotty leaf goes, it's only on the two lowest big leaves on a think different and it sounds like what C Grow said about nute splash cuz when I watered I had to pour directly onto those leaves because they were so wide.. on the other hand the spots at one point did look a rust orange color but now do look darker. The problem isnt too bad the plant looks healthy otherwise.
Here she is with some minor LST. The main stem is green but the top of the branch stems are purple. As u can see I forgot to mention the leaves are also kind of curling like a taco at the edges. The N P K is 5 4 3 and I feed every time I water.


The bleached part is not crispy it feels like the rest of the leaf although the bottom one is growing crooked its also smooth to the touch and looks healthy other than the white. Let me make this clear I did not splash nutrients on this plant, which is a black cream. The leaves were green until around day 20 when the discoloration began. By day 25 the pure white color had spread and now at day 34 the spreading seemed to have stopped although the rest of the plant is a mixture of green/light green.
When I look at it up close the leaf seems unaffected you just see the mix of green and then frost white. It's cool looking. This black cream is one of two and the other one is 5 inches taller and doesn't have any discoloration. Since they both get fed about a third of a gallon of .9 ec water every other day I have a feeling it's a genetic disorder not just a deficiency. Thanks for helping let me know if you need any more info.