Maybe a nute burn?

I've noticed my leaves beginning to die off like crazy, lots of lower ones...I read that a nute burn, causes the leaves to dry out and burn up, the leaves seem rather crisp and dry, and pics indicate at least somewhat as to how the leaves are dying off...looks kinda like nute burn but it's a tough call for me...anyone else got an idea? I have had issues with mold and thought it was still affected leaves but now I'm beginning to doubt it considering I've used fungicide and now have the humidity level under control..

Maybe just give em plain water the next couple times and see if they start to show improvement?

thanks guys

On my last grow I had the same problem with 4 plants (out of 20), I eventually just pulled em cause i thought, like you, it was a mold issue. Looking back at it I don't think it was mold but a nute burn issue. My plants looked identical to yours. I sprayed the hell out of my plants treating for mold, couldn't lower humidity cause it was 20% already! As well I didn't over water and took other precautions. All of the plants showed signs of nute burn as well (burned tips, dark green foilage etc...)

Here's some questions to help with diagnoising problem:
How many weeks into flowering are you?
What kind of nutes are you using?
What are your room conditions (adequate ventilation/temps/humidity?)
Are growing from bagseed or quality seeds?
Soil or Hydro?
What kind of strain are you growing (Indica/sativa/hybrid)?

I believe you are doing the right thing with just watering with plain Ph'd water for the next few days and lowering humidity. If your close to finishing your crop I would leave be and just learn from the grow. Next time just fert with 1/4 to 1/2 strength nute solution and go from there and of course elimate any potential mold conditions. Any kind of desperate measures will probably decrease yield, ruin taste or quality of herb. This one dude i know sprayed his crop 3 weeks before harvest with this fungiside/pesticide shit. I told him i wouldn't be smoking that shit, God only knows what kind of chemicals your consuming when you smoke or eat it. Just my 2c.

Peace

Just thought of another thing.It could be a Cal/Mg deficiency. THose brown rustly leaves looks suspicious. You can get Cal/Mg Plus pretty cheap to supplement your base nutes. If you are using quality nutes however, with plently of micro nutes I wouldn't worry.

Peace

Quote:

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Originally Posted by bonghitter

On my last grow I had the same problem with 4 plants (out of 20), I eventually just pulled em cause i thought, like you, it was a mold issue. Looking back at it I don't think it was mold but a nute burn issue. My plants looked identical to yours. I sprayed the hell out of my plants treating for mold, couldn't lower humidity cause it was 20% already! As well I didn't over water and took other precautions. All of the plants showed signs of nute burn as well (burned tips, dark green foilage etc...)

Here's some questions to help with diagnoising problem:
How many weeks into flowering are you?
What kind of nutes are you using?
What are your room conditions (adequate ventilation/temps/humidity?)
Are growing from bagseed or quality seeds?
Soil or Hydro?
What kind of strain are you growing (Indica/sativa/hybrid)?

I believe you are doing the right thing with just watering with plain Ph'd water for the next few days and lowering humidity. If your close to finishing your crop I would leave be and just learn from the grow. Next time just fert with 1/4 to 1/2 strength nute solution and go from there and of course elimate any potential mold conditions. Any kind of desperate measures will probably decrease yield, ruin taste or quality of herb. This one dude i know sprayed his crop 3 weeks before harvest with this fungiside/pesticide shit. I told him i wouldn't be smoking that shit, God only knows what kind of chemicals your consuming when you smoke or eat it. Just my 2c.

Peace

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6 weeks flowering, Schultz bloom plus 5-30-5 and koolbloom 2-45-28 additive, watering every few days or so, schedule goes schultz water koolbloom water schultz..etc, 6" tube with duct removing air from room, 80-85 degrees, 30-45% humidity, is a dutch passion blueberry f2, and in soil...

using 1/4 - 1/2 mix ferts already, burned them at first and backed it off, but now it's making me think maybe they're getting a bit too much...