Lots Of Yellowing Leaves Burnt Tips Yellow Veins

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Wouldn't blight be affecting all growth and new growth? Disease usually does. This is an environmental or input (too damn many) issue
I've seen it be all over. I've seen it be mostly at the bottom. I've seen it be mostly at the top. But given enough time, it usually spreads to all growth. Where I live, it's almost always a problem to some degree or another. As you can see in the pic, I still have it, but nowhere near as bad as before.

Tbh, I'm not absolutely sure what the issue is. I don't grow meds outside so I skip some of those problems. I'm just transferring knowledge/experience of other plants. Plus he has other plants around with the same issue, so it seem like a common blight just spread to the cannabis.

Another thing I've seen cause weird issues like that is if you have neighbors treat with Chemlawn or Tru-green. It can destroy fruit trees and also causes a blight looking effect on many plants. It's terrible for most fruit producing plants...maybe cannabis too?

@mauiinfinity do you or your neighbors use Chemlawn et al?
 
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Wouldn't blight be affecting all growth and new growth? Disease usually does. This is an environmental or input (too damn many) issue
I don't think they necessarily get what is called blight that is usually directed at tomato plants but they can certainly get other fungal diseases that are extremely similar. Blight is really just another term for fungus. I do agree that there are probably multiple things going on but I would not rule out fungus either.
 
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Ok so I have increased my watering to every day and foilar fed with some cal mag with iron... I'm hoping it's an iron defecieny + maybe roots getting to dry in between watering. Watering with just ph water. Then will see what the plant tells me. I sure hope it's not a fungal issue. I did reuse bags this year, and cages
 
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Blight is really just another term for fungus. I do agree that there are probably multiple things going on but I would not rule out fungus either.
Yes. Blight is just shorthand for "fungal disease." It's just the vernacular I'm used to. I agree he probably has multiple issues going on. One of them appears to be fungal. But every plant isn't susceptible to the same blight. You can have different plant varieties (veggies) right next to each other, one with blight, one without. That's why I've been asking if outdoor cannabis is susceptible to the same blight he has on the other plants. Some plants aren't susceptible. I have it on my tomatoes and squash...but nothing else that I've noticed. Peas are fine. I removed the cukes this weekend and no signs of a problem. Broccoli was harvested long ago, but the leaves are still there, and clean as a whistle.

What makes me think he has multiple issues is that I've never seen a blight turn leaves pure yellow w/o any other damage and he has quite a few. Imo, that's a root problem of one sort or another. But others look exactly like a fungus problem would.

Imo, he has a fungus issue. But it appears to be small. The 3 leaf thing and the pure yellow is the other large indicator to me, and...man, I just don't know what's happening there. A couple more q's for him below. We need to create a batman type signal for @Seamaiden

Ok so I have increased my watering to every day and foilar fed with some cal mag with iron... I'm hoping it's an iron defecieny + maybe roots getting to dry in between watering. Watering with just ph water. Then will see what the plant tells me. I sure hope it's not a fungal issue. I did reuse bags this year, and cages
I always reuse the bags but I sterilize them first. I have a huge pot for canning, I boil water and then put the bags in it and put a rock on them and I think I fit 4-5 at a time. But mine are 3 gallon. Outside and on ground, the bottom part of the bag often stays wet/moist for the whole grow so some ugly stuff can grow at the bottom.

What are the strains with the issue, and have you grown them before? Have you dug into the soil to see if there are any pests in there e.g. root aphids? And did you compost that soil yourself?

It's not worth it to attempt to clean that cage. Next year, I would clean/sterilize the bags, get new cages and if you mixed that soil and still have some, I would ditch it as well, then clean the trough. But I can go overboard sometimes. Keep in mind, I'm not positive what the problem is. Those are just the precautions I would take next year in case it is a fungus problem. Otherwise you may accidentally perpetuate the problem.
 
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Yes. Blight is just shorthand for "fungal disease." It's just the vernacular I'm used to. I agree he probably has multiple issues going on. One of them appears to be fungal. But every plant isn't susceptible to the same blight. You can have different plant varieties (veggies) right next to each other, one with blight, one without. That's why I've been asking if outdoor cannabis is susceptible to the same blight he has on the other plants. Some plants aren't susceptible. I have it on my tomatoes and squash...but nothing else that I've noticed. Peas are fine. I removed the cukes this weekend and no signs of a problem. Broccoli was harvested long ago, but the leaves are still there, and clean as a whistle.

What makes me think he has multiple issues is that I've never seen a blight turn leaves pure yellow w/o any other damage and he has quite a few. Imo, that's a root problem of one sort or another. But others look exactly like a fungus problem would.

Imo, he has a fungus issue. But it appears to be small. The 3 leaf thing and the pure yellow is the other large indicator to me, and...man, I just don't know what's happening there. A couple more q's for him below. We need to create a batman type signal for @Seamaiden



I always reuse the bags but I sterilize them first. I have a huge pot for canning, I boil water and then put the bags in it and put a rock on them and I think I fit 4-5 at a time. But mine are 3 gallon. Outside and on ground, the bottom part of the bag often stays wet/moist for the whole grow so some ugly stuff can grow at the bottom.

What are the strains with the issue, and have you grown them before? Have you dug into the soil to see if there are any pests in there e.g. root aphids? And did you compost that soil yourself?

It's not worth it to attempt to clean that cage. Next year, I would clean/sterilize the bags, get new cages and if you mixed that soil and still have some, I would ditch it as well, then clean the trough. But I can go overboard sometimes. Keep in mind, I'm not positive what the problem is. Those are just the precautions I would take next year in case it is a fungus problem. Otherwise you may accidentally perpetuate the problem.
I am with you on this... I am ditching bags and cages. Smart pots are cheap now and I want to go stakes and netting anyway... the only thing I see in my soil is springtails. We bought really good living soil this year which has alot of coco, bark, and other things that hold water. It has been really tuff to tell when they need water. I need to have our well water tested. The well has had some problems this year too.
 
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Bro, their screaming that their starving. Their canabilizing themselves and relocating what stored nutes they have. The droopy leaves either say they've been over watered which probably leached the nutes from the soil or their stressed from the lack of food. Their big plants and I would administer light waterings loaded with nutes for a few waterings with no runoff and they'll green back up in a week.
 
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Bro, their screaming that their starving. Their canabilizing themselves and relocating what stored nutes they have. The droopy leaves either say they've been over watered which probably leached the nutes from the soil or their stressed from the lack of food. Their big plants and I would administer light waterings loaded with nutes for a few waterings with no runoff and they'll green back up in a week.
You might have a good point there those are big plants in small pots
 
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There's no doubt. They appear to be in the finally veg phase "stretch" and that's a real bad time to have them starving for anything. The stretch needs extra care as this will determine your final yield.
 
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There's no doubt. They appear to be in the finally veg phase "stretch" and that's a real bad time to have them starving for anything. The stretch needs extra care as this will determine your final yield.
The ones that aren't too far along you could juice with some liquid kelp meal.
 
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There's no doubt. They appear to be in the finally veg phase "stretch" and that's a real bad time to have them starving for anything. The stretch needs extra care as this will determine your final yield.
Looking back on this thread I think you are right. They need all sorts of food.
 
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I just turned 28 days bloom and I'm hitting my girls with 3 teaspoons a gallon of bloom and several boosters and my soilless is sweetend. Cut out veg nutes yesterday day 27.
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