Disease or Deficiency? Weird camouflage yellowing (detailed pics)

​Hi,
I-d like to introduce myself to the RIU community, Im a big Subcool and live far far away on a distant continent

I have this weird decoloration going on on some plants on my veg stage, at first i thought it was "La Rancha" Phytophthora Infestans, a potatoe root disease but read about it and seems that it doesnt affect our lovely plants

Ive tried to find some pics of something similar and havent found a match yet, what kills me the most is not know knowing what it is

all plants are grown in coco with some perlite added with a local A & B nut solution for veg

Please help me diagnose the problem!
p.d. in some pics its noticable that its affecting the top half of the plant mean while the lower half or older foliage dont show this decoloration or weird yellowing

kind of looks like light bleaching. what kind of lights are you using and how far away?

Thanks for answering E this girls are under a 250 watt HPS inside a shower

the light is like 1.5 foot away (50 cms)
I threw away all my veg and mother plants a couple weeks ago cause they has this weird decoloration plus some some wierd cristaling going on on some seedlings, Ill add a couple pics of that past simpton wich hasnt appeared again

Machupichu said:

Thanks for answering E this girls are under a 250 watt HPS inside a shower

the light is like 1.5 foot away (50 cms)
I threw away all my veg and mother plants a couple weeks ago cause they has this weird decoloration plus some some wierd cristaling going on on some seedlings, Ill add a couple pics of that past simpton wich hasnt appeared again

Click to expand...

I have that symptom on the top of my mother. I'm not sure what is is but i hope somebody can tell us. That is not light bleaching then i thought you were using a 1000 watter.

could you add a pic of your symptom? I even started thinking of weird theories like the light is realising a toxic gas or that the water drainage from the shower was realising a gas that could affect it but naah

machupichu said:

​hi,
i-d like to introduce myself to the riu community, im a big subcool and live far far away on a distant continent

i have this weird decoloration going on on some plants on my veg stage, at first i thought it was "la rancha" phytophthora infestans, a potatoe root disease but read about it and seems that it doesnt affect our lovely plants

ive tried to find some pics of something similar and havent found a match yet, what kills me the most is not know knowing what it is

all plants are grown in como with some perlite added with a local a & b nut solution for veg

please help me diagnose the problem!
P.d. In some pics its noticable that its affecting the top half of the plant mean while the lower half or older foliage dont show this decoloration or weird yellowing

Click to expand...

not to be a dick or anything, but you just solved half the problem on your own. "affects upper half or new growth" that means its an immobile nutrient. Finish/solve it. What nutrients are immobile and compare symptoms.

Normally new growth issues means what you did in the last 10 days...
What I think happened, is:
You mixed up your soil...and too high levels of "P" of the NPK, but the N also high...
Not a good mix cause some of your roots up take it, and others don't...

Maybe list all you added, and if you have added anything extra in the last 10 days....

Your nutrient feedings are imbalanced; & I like what tikitoker said.

if whatever nutrients you have that your are using are incomplete, missing some key micro nutrient

the tap water you're using most likely had enough in it to carry the plant to a certain size, but now it's important to make sure you're giving it a "complete " fertilizer

i use dyna gro, it has EVERYTHING in it that you need, for flower and vegetative stage (not saying this is the only option)
the foliar pro is a 9-3-6, and is "complete" like their other base nutrients
if you look on the back, you'll see small amounts of everything the plants need

if i were you i'd look up the foliage pro, and look at the other nutrients besides NPK, and compare that to the A+B formula you bought

you could just go buy micro nute bottle, probably, or just a complete base nute


also in coco, you want to leech the stuff once in a while. It locks in salts if you aren't careful and the salt buildup can lead to deficiencies due to the root's not being able to properly intake the nutes (clogged w/ salts)

when using foliar pro in coco, i add cal-mag because coco locks out some of it
this may also be the problem. I do cal-mag everywatering, because of the runoff method i use

Machupichu said:

​Hi,
I-d like to introduce myself to the RIU community, Im a big Subcool and live far far away on a distant continent

I have this weird decoloration going on on some plants on my veg stage, at first i thought it was "La Rancha" Phytophthora Infestans, a potatoe root disease but read about it and seems that it doesnt affect our lovely plants

Ive tried to find some pics of something similar and havent found a match yet, what kills me the most is not know knowing what it is

all plants are grown in como with some perlite added with a local A & B nut solution for veg

Please help me diagnose the problem!
p.d. in some pics its noticable that its affecting the top half of the plant mean while the lower half or older foliage dont show this decoloration or weird yellowing

Click to expand...

Red arrow- Looks like it is affecting some of your lower growth. Scorched leaf tips with interveinal chlorosis/necrosis hints @ Nute burn.
Blue arrow- Looks like Potassium, Iron or Zinc but since I'm seeing the scorched leaf tips I'm wondering if you may have added some fertilizer that was too concentrated and A. Burned your plants or B. Caused an antagonistic reaction with your pH levels or with another nute.
Generally you don't have several problems that show up at once unless it is the result of a common stimulus.

If I were to guess right now, with what is clearly incomplete information, I would say a combination of light poisoning/bleaching and Nute burn.

The pictures of the fuzzy stuff on your other plants looks like spider mites. If you have spidermites in there, there is a good chance you have not been watching for pests and there could very well be an infestation of something in your soil as well.



Answer these to the best of your knowledge if you will.

What is this "como" you speak of?
What is the pH of your soil?
Did you add any nutes recently and did you dilute them?
What are these local nutes that you're using?
Are you reusing old soil and if so did you flush it first?
How often are you feeding your plants?
"peace:

jesus i didn't see that picture
isn't that pot a little bit small?
a bigger pot will fix it

and i guessed "como" was "coco coir"

what brand of "como" was it?

Im thinking como=coco with an added typo https://www.icmag.com/ic/showthread.php?t=231387 there are tons of pics here! calcium potassium sulfur iron all share what your pics describe. It almost looks like a toxic soil is causing a lock out because it is out of a specific range.(6.2-6. hope this points you in the right direction. if all other factors are right on, temps, light rh and not over/under fert, not over/under watering I would look at the ph. and you should trans plant, that alone will cure some problems

I have a different opinion on this one. It looks like your foliar feeding with too high of a PPM feed and its burning the leaves. The older bottom leaves are probably a little stronger and thus can handle a little hotter solution. Or your poured the nute water directly on them from the top. Also your pots looks pretty small... Good Luck

love the new avatar cappa, where are you getting all these hott blond pics?? im jelly

sativa indica pits said:

love the new avatar cappa, where are you getting all these hott blond pics?? im jelly

Click to expand...

I just google sexy Marijuana Girls and save the pic and use it as an avatar. They are pretty hot, I should get my girl to do a real pose with the plants. She a smoking little Italian girl.

turning yellow from the outside in.......hmmm sounds like a pretty common deficiency, I even know where you can find the information, Its in the newbie section just look at the stickies on deficiency that's why there there.

tikitoker said:

not to be a dick or anything, but you just solved half the problem on your own. "affects upper half or new growth" that means its an immobile nutrient. Finish/solve it. What nutrients are immobile and compare symptoms.

Click to expand...

Im getting a pH meter tomorrow first thing and check on the micro solution, your avatar pic looks like a qrazy train

this is our local nutrient solution, I accept critics to raise some levels since this nutrient solution is also sold as solid salts to be diluted and also parts are sold separetly if needed to raise specficic elemtns

I got to be honest I havent been checking pH levels,
and I am froma country with not one growshop,
I know for sure its not a build up since I have an exagerated run off since it is cheap as fuck the nutrient solution, it costs like 20$ for 500 gallons of water

I haven-t seen any picture of plants with the same problem, please upload them if there is so we can compare and learn, I am just a little paranoid since I had a disease aand a month ago threw away a lot of plants

I know you might all think Im a newbie, I have about 5 years growing and the last 4 years in coco and perlite, and got to RIU since Im a Sub fan and there is a TGA by others thread
Im just disconcerned with this weird decoloration, it only happens in that small bathroom and with some plants only
Since I shared whats going in the "mother-vegie-bathroom" I decided to share whats going on in the flower room
I hope some one shows up with a picture of the same simptoms I have and an acurate diagnose

Peace

Machupichu said:

Im getting a pH meter tomorrow first thing and check on the micro solution, your avatar pic looks like a qrazy train

Click to expand...

yesss sir it is q train.