Shed some light?

[OhMiMedical815]

Hi, and thanks for any help. Got something going on with my autos and need help figuring it out. It starts off as spots along the veins of the fans leaves then turns to rust and eventually it takes over the whole fan leave from oldest to newest. With one plant it spread very bad and is now spreading to the sugar leaves. I have them in Build 3.0 soil, up until flower they only had tap water, fish shit, and every other watering Recharge. Since flower once a month I top feed with Gaia bloom, then water, fish shit and hit it with recharge every other watering still. It didn’t happen until well into flower. Tried cal mag already. I had high humidity but a dehumidifier fixed that. DLI at 25, water always PH to 6.4. Gonna try a soil sample to see what the soil PH is at but wanted to get some input from anyone that’s seen this.
The first pic is how it starts, the second is what it turns into. Different plants, both the same age, one has it worse than the other.

 

[Hugo Phurst]

I don't know what it's called, but I have had it...
I think they're done for.

 

[ALPHA.GanjaGuy]

Hi, and thanks for any help. Got something going on with my autos and need help figuring it out. It starts off as spots along the veins of the fans leaves then turns to rust and eventually it takes over the whole fan leave from oldest to newest. With one plant it spread very bad and is now spreading to the sugar leaves. I have them in Build 3.0 soil, up until flower they only had tap water, fish shit, and every other watering Recharge. Since flower once a month I top feed with Gaia bloom, then water, fish shit and hit it with recharge every other watering still. It didn’t happen until well into flower. Tried cal mag already. I had high humidity but a dehumidifier fixed that. DLI at 25, water always PH to 6.4. Gonna try a soil sample to see what the soil PH is at but wanted to get some input from anyone that’s seen this.
The first pic is how it starts, the second is what it turns into. Different plants, both the same age, one has it worse than the other.

how often are you watering? I had this back when I was letting my plants dryback too far, I used to wait for my pots to be very light, to the point plants would sometimes wilt showing they were thirsty.. now I water them basically a day earlier and have not experienced this since.. I can feel a pot now and be like tomorrow this will be very light, I should water it today

 

[Kushash]

4 possibilities IMO.
Calcium deficiency.
Calcium lockout from low PH.
Calcium lockout from letting plant dry back too much too often as mentioned.
Calcium lockout from a fertilizer imbalance.

 

[keep it real.]

Hi, and thanks for any help. Got something going on with my autos and need help figuring it out. It starts off as spots along the veins of the fans leaves then turns to rust and eventually it takes over the whole fan leave from oldest to newest. With one plant it spread very bad and is now spreading to the sugar leaves. I have them in Build 3.0 soil, up until flower they only had tap water, fish shit, and every other watering Recharge. Since flower once a month I top feed with Gaia bloom, then water, fish shit and hit it with recharge every other watering still. It didn’t happen until well into flower. Tried cal mag already. I had high humidity but a dehumidifier fixed that. DLI at 25, water always PH to 6.4. Gonna try a soil sample to see what the soil PH is at but wanted to get some input from anyone that’s seen this.
The first pic is how it starts, the second is what it turns into. Different plants, both the same age, one has it worse than the other.

Imbalance of nutrients, green waxy leaves, nitrogen toxicity. Calcium lockout causes by either other toxicity or too much calcium.
Organics don’t like to dry back to much, ph is low.
Everything points towards too much nutrient.

 

[OhMiMedical815]

how often are you watering? I had this back when I was letting my plants dryback too far, I used to wait for my pots to be very light, to the point plants would sometimes wilt showing they were thirsty.. now I water them basically a day earlier and have not experienced this since.. I can feel a pot now and be like tomorrow this will be very light, I should water it today

maybe once a week, nowhere near as much as my photos. This is my first auto grow and I swear these pots never feel light.I have 3 photos going with no problem, light after 3-4 days

 

[OhMiMedical815]

4 possibilities IMO.
Calcium deficiency.
Calcium lockout from low PH.
Calcium lockout from letting plant dry back too much too often as mentioned.
Calcium lockout from a fertilizer imbalance.

4 possibilities IMO.
Calcium deficiency.
Calcium lockout from low PH.
Calcium lockout from letting plant dry back too much too often as mentioned.
Calcium lockout from a fertilizer imbalance.

F

Imbalance of nutrients, green waxy leaves, nitrogen toxicity. Calcium lockout causes by either other toxicity or too much calcium.
Organics don’t like to dry back to much, ph is low.
Everything points towards too much nutrient.

I probably should go longer before top feeding huh? I’ve only top fed once this entire grow and that was a month ago.

 

[ALPHA.GanjaGuy]

it sounds like that's your issue imo. If you let it dryback like that you will have all sorts of ph and nute issues as both will change as the medium drys, this can cause burn, lockouts, deficiencies, etc.

I would suggest you try watering them less, more often instead of more, less often. that said you will not see much of a change with this girl, maybe you can get her to limp across the finish line

 

[keep it real.]

F


I probably should go longer before top feeding huh? I’ve only top fed once this entire grow and that was a month ago.

Me personally I think your ph is low and that’s the majority of the problem. I see it a lot with peat based soils.
What type of water are you using and what’s the ph of it before you add or change anything?

 

[keep it real.]

F


I probably should go longer before top feeding huh? I’ve only top fed once this entire grow and that was a month ago.

I know Jeremy talks a lot about organics balancing ph and it’s not something you need to worry about which is true.. but that takes experience and balance of organic matter and in no way means ph isn’t important. Ph is critical for plant growth.
Not only does ph lock out minerals it also makes some more accessible and causes toxicityof micros.. this is why expert growers will change the ph from veg to flower.
Iv been growing organics for 2 years now reusing the same soil and I had my share of fails for sure. I sent soil samples out multiple times and corrected as I went and many times wanted to throw the towel in and go back to clones in hydro…
Organics is not easy but it’s well worth it in my opinion.
Feel free to message me anytime you want I will for sure give you a hand.