WTF causes leaves to look like this? Fungal infection??

lildogbyte

lildogbyte

Member
Couple days ago these babies were fine but I just checked and suddenly half of the fan leaves look like this:image.jpg
The chlorosis could be all sorts of things, but wtf causes the leaves to shrivel up and turn brown???
 
Rocket Soul

Rocket Soul

Well-Known Member
Full plant pics of whatevers left.

Adding a fan could increase transpiration which means more nutes from more drinking. But that kinda looks more like deficiencies.

How long between fan added and this?

What lighting and approximate temps?

Where does it start in the plant? And where in the leaf, tips?

You give minimal information here. What did you use for fertilizer? A month is a lot of time to not give more nutes if its a fast growing llant in good light intensity. Maybe your all out of nutes in the pot cause i can jot wrap my head around nute bottle once in a month.
What really happened here?
 
lildogbyte

lildogbyte

Member
Phytoplankton said:
Was the fan blowing directly over/on the crispy leaves?
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Nah, the fan was above everything, pointed at nothing really. Just moving air around cus the exhaust isnt all the way at the top and I was feeling anxious about stagnant hot air and felt like it couldnt hurt too bad. It’s just a shitty little fan from walmart
 
lildogbyte

lildogbyte

Member
Dorian2 said:
What's happening with the feeding?
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No feeding, really. Auto flower in what is supposed to be a primo mix and I did a top dressing one time cus from everything I have read autos don’t really need much. I looked at budz buddha’s ‘Grow a plant dummy’ thread for inspo.
 
lildogbyte

lildogbyte

Member
Rocket Soul said:
Full plant pics of whatevers left.

Adding a fan could increase transpiration which means more nutes from more drinking. But that kinda looks more like deficiencies.

How long between fan added and this?

What lighting and approximate temps?

Where does it start in the plant? And where in the leaf, tips?

You give minimal information here. What did you use for fertilizer? A month is a lot of time to not give more nutes if its a fast growing llant in good light intensity. Maybe your all out of nutes in the pot cause i can jot wrap my head around nute bottle once in a month.
What really happened here?
Click to expand...
Not that long since I added the fan, and it wasn’t blowing on them whatsoever. It barely moved the air in front of it.

1 100W marshydro light. Temps in enclosure range from 70s-80s (F) but coming winter time that’ll go down to 60s-70s.

These symptoms appear all over the plant and appeared literally over night. Entire leaves. There were already symptoms of other issues present. I have a third plant of the same variety growing in ‘succulent potting mix’ i got from my backyard, in a closet that is doing waaaayy better than these plants that are in pride lands premium shi. All three plants have received same treatment. Only difference is the medium.

I added some 3-7-4 terp tea a minute ago cus they are autoflowers that were supposed to be done in 2-3 months and I had seen from many auto growers that adding fertilizer too late could shock your plant into flowering early. I doubt they are out of nutes since the other plant which is in some BS doodoo soil only shows signs of mag deficiency.

I appreciate you taking the time, but I don’t know what you want me to say brother. I don’t appreciate the condescending tone.
 
tstick

tstick

Well-Known Member
You could try a slurry test to see what the soil pH is. That's what I did when I had a plant displaying similar issues. Turned out the pH was in the 4.0 range! -very acidic! I corrected the incoming water to be a bit higher-than-normal (~8.5) and did many more slurry tests and runoff tests until the reading was ~normal (6.0-6.5). After that, I always made sure that my incoming water was pH'd to about 6.0. Once the tests and checks turned out consistent between incoming water and runoff water, the plants began to heal and the growth turned back to healthy looking growth.

Being that most people really overdo the ferts and amendments in soil, I am always skeptical of deficiency diagnosis because the plants shouldn't be deficient. I think pH is a more likely suspect because it can cause nutrient lockout even when there are plenty of nutrients in the soil. And if the pH is low enough it will downright burn the roots! That's when you see that instant-onset of symptoms.

Anyway, it's worth a check! It can't hurt! Good luck! Peace
 
lildogbyte

lildogbyte

Member
tstick said:
You could try a slurry test to see what the soil pH is. That's what I did when I had a plant displaying similar issues. Turned out the pH was in the 4.0 range! -very acidic! I corrected the incoming water to be a bit higher-than-normal (~8.5) and did many more slurry tests and runoff tests until the reading was ~normal (6.0-6.5). After that, I always made sure that my incoming water was pH'd to about 6.0. Once the tests and checks turned out consistent between incoming water and runoff water, the plants began to heal and the growth turned back to healthy looking growth.

Being that most people really overdo the ferts and amendments in soil, I am always skeptical of deficiency diagnosis because the plants shouldn't be deficient. I think pH is a more likely suspect because it can cause nutrient lockout even when there are plenty of nutrients in the soil. And if the pH is low enough it will downright burn the roots! That's when you see that instant-onset of symptoms.

Anyway, it's worth a check! It can't hurt! Good luck! Peace
Click to expand...
I appreciate your response, and I agree! It can’t hurt to check. Time to hit the supply store
 
dwc420letsgo

dwc420letsgo

Well-Known Member
how dry do you let the pot get in between watering/feedings?

I know if I let the plant dry out too much, it will cannibalize the lower leaves for nutes and some leaves just die off like that.
 
lildogbyte

lildogbyte

Member
dwc420letsgo said:
how dry do you let the pot get in between watering/feedings?

I know if I let the plant dry out too much, it will cannibalize the lower leaves for nutes and some leaves just die off like that.
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I’m not gonna front, I let my partner handle the watering because otherwise we constantly go back and forth about whether it’s time to water. I feel that we’re watering too much, my partner thinks too little. I think next time I’m gonna get an auto watering pot or set up a flood system lol…
Back to the point though, when I went to take pictures, these babbages were leaking and it’s been a good few days since they were watered, so I’m seriously gonna take tstick’s advice and do a slurry test.
 
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