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Old 10-31-2008, 01:31 AM
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tips of leaves turnin yellow and curlin upward help!

sorry no pics but i can tell u that all the leaves r startin to turn yellow and curl upward. the plant is about 7months old and has been flowering for 3 months. ive been givein it low doses of Miracle grow bloom booster 20-30-20 once every 3 weeks. just gave it one when it started 1 week ago and it hasnt helped anyone know what this is??? they r turn yellow from the tips.

Last edited by RobertHope; 10-31-2008 at 02:44 AM.
 
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Old 10-31-2008, 05:24 AM
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Re: tips of leaves turnin yellow and curlin upward help!

Quote:
Originally Posted by RobertHope View Post
sorry no pics but i can tell u that all the leaves r startin to turn yellow and curl upward. the plant is about 7months old and has been flowering for 3 months. ive been givein it low doses of Miracle grow bloom booster 20-30-20 once every 3 weeks. just gave it one when it started 1 week ago and it hasnt helped anyone know what this is??? they r turn yellow from the tips.

I dont know what the problem might be, but it sure sounds like fert burn to me. Try flushing the plant thoroughly with water and then leave it alone for a few days. That’s what I would do.

7 months is longer than the plant normally lives. maybe it is dying of old age? What strain? How are you growing it?

guitarmarc
 
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Old 10-31-2008, 06:36 AM
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Re: tips of leaves turnin yellow and curlin upward help!

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Originally Posted by guitarmarc View Post
I dont know what the problem might be, but it sure sounds like fert burn to me. Try flushing the plant thoroughly with water and then leave it alone for a few days. That’s what I would do.

7 months is longer than the plant normally lives. maybe it is dying of old age? What strain? How are you growing it?

guitarmarc
its bagseed proably sativa. o and it went along time with out ferts when it started happein growin with 2 42watt cfls and a blue 26watt cfl
 
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Old 10-31-2008, 11:20 AM
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Re: tips of leaves turnin yellow and curlin upward help!

You can keep a mj plant in veg for years, its the light cycle that induces flowering (with the exception being auto flowering that are on a limited life cycle from the day you germ them). It is probably nute burn, so flush and wait and see if your plant starts to improve. 420usagrow
 
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Old 10-31-2008, 12:36 PM
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Re: tips of leaves turnin yellow and curlin upward help!

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Originally Posted by 420usagrow View Post
You can keep a mj plant in veg for years, its the light cycle that induces flowering (with the exception being auto flowering that are on a limited life cycle from the day you germ them). It is probably nute burn, so flush and wait and see if your plant starts to improve. 420usagrow
its pretty clsoe to done another month tops maybe i chould just ignore it?
 
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Old 10-31-2008, 12:48 PM
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Re: tips of leaves turnin yellow and curlin upward help!

Yes, I wouldn't worry about it. I know that the leaves do start to discolor and fall off on their own, towards the last few weeks of flowering (usually starting with the bottom leaves). As long as your buds and tops look okay, don't worry! Good luck on your harvest Robhope! 420usagrow
 
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Old 10-31-2008, 03:37 PM
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Re: tips of leaves turnin yellow and curlin upward help!

Leaf Curling Up - Leaf curling up can be a sign of a Magnesium (Mg) deficiency caused by too low of a pH level. Magnesium deficiency will show as a yellowing (which may turn brown and crispy) and interveinal (in between the veins) yellowing beginning in the older leaves. Interveinal chlorosis (yellowing) will start at the leaf tip and progressing inward between the veins. It could also be a sign of excess heat and humidity in the grow room.

Solution - Check and adjust the pH level as necessary. When the pH is not at the proper level marijuana will lose its ability to absorb some of the essential elements required for healthy growth. If you’re growing in soil Magnesium will begin to be locked out at a pH of 6.5 and lower, in hydro it starts at 5.8 and below. If the pH is correct, then add 1 teaspoon of Epsom salts per each gallon to your water. Or, to foliar feed them, add a ½ teaspoon per quart to a spray bottle. **Note- If your tap water is over 200 ppm Magnesium will be locked out due to the calcium in the water. Magnesium can get locked out by too much Calcium (Ca), Chlorine (Cl) or Ammonium Nitrogen (NH4+). If this is your problem we suggest using bottled or RO (reverse osmosis) water.


Leaf Curling Down - When the leaves curl under and burn at the tips and margins it’s usually a sign that the nutrient level is too high.

Solution - Check and adjust the pH level as necessary. Flush and decrease the nutrient level.
 
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Old 10-31-2008, 03:51 PM
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Re: tips of leaves turnin yellow and curlin upward help!

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Originally Posted by mawiwaui View Post
Leaf Curling Up - Leaf curling up can be a sign of a Magnesium (Mg) deficiency caused by too low of a pH level. Magnesium deficiency will show as a yellowing (which may turn brown and crispy) and interveinal (in between the veins) yellowing beginning in the older leaves. Interveinal chlorosis (yellowing) will start at the leaf tip and progressing inward between the veins. It could also be a sign of excess heat and humidity in the grow room.

Solution - Check and adjust the pH level as necessary. When the pH is not at the proper level marijuana will lose its ability to absorb some of the essential elements required for healthy growth. If you’re growing in soil Magnesium will begin to be locked out at a pH of 6.5 and lower, in hydro it starts at 5.8 and below. If the pH is correct, then add 1 teaspoon of Epsom salts per each gallon to your water. Or, to foliar feed them, add a ½ teaspoon per quart to a spray bottle. **Note- If your tap water is over 200 ppm Magnesium will be locked out due to the calcium in the water. Magnesium can get locked out by too much Calcium (Ca), Chlorine (Cl) or Ammonium Nitrogen (NH4+). If this is your problem we suggest using bottled or RO (reverse osmosis) water.


Leaf Curling Down - When the leaves curl under and burn at the tips and margins it’s usually a sign that the nutrient level is too high.

Solution - Check and adjust the pH level as necessary. Flush and decrease the nutrient level.




Wow. Yeah. what he said.

m.
 
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Old 10-31-2008, 03:53 PM
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Re: tips of leaves turnin yellow and curlin upward help!

That is not my info I just copy pasted it from the guide in this forum:

http://forum.grasscity.com/sick-plan...ems-guide.html
 
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Old 10-31-2008, 09:15 PM
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Re: tips of leaves turnin yellow and curlin upward help!

Quote:
Originally Posted by mawiwaui View Post
Leaf Curling Up - Leaf curling up can be a sign of a Magnesium (Mg) deficiency caused by too low of a pH level. Magnesium deficiency will show as a yellowing (which may turn brown and crispy) and interveinal (in between the veins) yellowing beginning in the older leaves. Interveinal chlorosis (yellowing) will start at the leaf tip and progressing inward between the veins. It could also be a sign of excess heat and humidity in the grow room.

Solution - Check and adjust the pH level as necessary. When the pH is not at the proper level marijuana will lose its ability to absorb some of the essential elements required for healthy growth. If you’re growing in soil Magnesium will begin to be locked out at a pH of 6.5 and lower, in hydro it starts at 5.8 and below. If the pH is correct, then add 1 teaspoon of Epsom salts per each gallon to your water. Or, to foliar feed them, add a ½ teaspoon per quart to a spray bottle. **Note- If your tap water is over 200 ppm Magnesium will be locked out due to the calcium in the water. Magnesium can get locked out by too much Calcium (Ca), Chlorine (Cl) or Ammonium Nitrogen (NH4+). If this is your problem we suggest using bottled or RO (reverse osmosis) water.


Leaf Curling Down - When the leaves curl under and burn at the tips and margins it’s usually a sign that the nutrient level is too high.

Solution - Check and adjust the pH level as necessary. Flush and decrease the nutrient level.

TY just the answer i was looking for
 
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  #11 (permalink)  
Old 11-04-2008, 11:00 AM
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Re: tips of leaves turnin yellow and curlin upward help!

top cola down! YAY!
 
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