Leaves are curling and turning yellow. then getting brown spots latter

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DOPEYCDXX

Member
i have a 1000w duo core bulb, water coled hood, an ac unit, a fan,and a inline fan,and CO2 from the tank no burning gases
I use RO water or reverse osmosis
for nutes i am using

vitamin b for plants
Iguana grow
Kangaroots benificail microbes bacteria and fungi
sensizyme
and maxicrop liquid seaweed
also using thunder humic and fulvic acid

the strain is Super Lemon Haze from the Green House seed company

The Leaves began to curl and turn yellow 2 to 3 weeks ago now the problem is becoming severe. I am going to try and flush it using some bush doctors sledge hammer from fox farm i will keep posting the results. I already flushed it once with plain RO water. You can see the plant in the pics i posted.

Help would be very much appreciated
 

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ClosetGrower86

ClosetGrower86

Member
I know this is probably worthless because this is an old post, but in case you have problems in the future. What is your humidity level at? Because this looks like some sort of fungus. Not dealing with marijuana plants I've seen leaves look like that after a tree becomes infected with fungus. It sounds like you know what your doing with nutrients. If flushing doesn't do anything you might want to try and take down your humidity level. This might stop the fungus from growing so rapidly. Also, if you haven't started a new grow then you should sterilize the hell out of your area and your equipment. Because fungus is amazing at survival.
 
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DOPEYCDXX

Member
I know i have not been using my air filters on my fan either i believe that leads to much more air born mold and fungus. unfortunately i can not afford a new fan and filter at the moment i will just have to take away the ac and use my inline fan and filter as well as ed Rosenthal's zero tolerance.
 
ClosetGrower86

ClosetGrower86

Member
Hey sorry for saying this was an old post. I was looking at something else, lol. Wow actually I never though about that, but the AC could definitely be bring something in the air. Have you had this problem before?
 
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DOPEYCDXX

Member
no i have not had the problem before the ac does not turn on in late Nov or Dec should not turn on before February the room stays very cold i have other plants with no problems so i think it is nutrient salt build up
 
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reefdoc

Member
first clean your resavior with bleach, wash the bleach out very good,run streight water 3-4 times through the system,repleace your nutries,at only half the rate for 2-3 days ,back off the light a little,put a little root stemulator,not much,Then in 3-4 days empty the salution clean the res,very good agian and go back to what you were doing,,check your iron levels.
 
G

GreenerUS

Active Member
Im a newbie here but it looks like its in a 6'' pot. I currently have a plant in veg thats maybe 2-3 feet tall and in a 6'' pot and it has those exact same looking leaves. originally i thought it was because i was using an aqua globe and the constant water wasnt giving the roots time to breath. So i stopped that but then thought if the pots too small too, then it would be the same thing, no oxygen...
 
Serapis

Serapis

Well-Known Member
That plant is sufferring some sever defficiencies "OR" it is PH locked or salt locked. Flush medium very well. FEED the plant. Notice the distorted new growth tips? That is generally always an indicator of a lack of Boron..... however..... root binding causes that too and as mentioned earlier, your pot looks small. It must be full of roots by now. I would repot or provide for roots growing out of bottom, depending on how you are growing/feeding.
 
Tahmi.Guhnn

Tahmi.Guhnn

Active Member
DOPEYCDXX said:
i have a 1000w duo core bulb, water coled hood, an ac unit, a fan,and a inline fan,and CO2 from the tank no burning gases
I use RO water or reverse osmosis
for nutes i am using

vitamin b for plants
Iguana grow
Kangaroots benificail microbes bacteria and fungi
sensizyme
and maxicrop liquid seaweed

the strain is Super Lemon Haze from the Green House seed company

The Leaves began to curl and turn yellow 2 to 3 weeks ago now the problem is becoming severe. I am going to try and flush it using some bush doctors sledge hammer from fox farm i will keep posting the results. I already flushed it once with plain RO water. You can see the plant in the pics i posted.

Help would be very much appreciated
Click to expand...
it looks like potassium defficentcy, toxic salt build up, or your ph isn't allowing the right nutrients in. i wouldn't flush with plain water. that just washes the N out and other nutrients rely upon the N to get into the plant. its best to flush with a weak nutrient solution. i had a plant with toxic salt build up that looked alot like that, i flushed it with something called rephresh or something it was a free sample from the local hydro store. it cleared the problem up in a few days. but you are going to want to remove the leaves that are over 80% dead. and by dead i mean crumbly to the touch. I'd leave as many on as you can since the plant can still pull nutirents from the living part of the leaf.
 
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DOPEYCDXX

Member
its in a 3 gallon pot upgrading to a 20 gallon pot and adding charcoal to avoid salt build up could not find plant charcoal so i guess i will just be using briquet's and smashing them with a hammer
 
Tahmi.Guhnn

Tahmi.Guhnn

Active Member
i wouldn't use cookin carcoal. i'd go to the air filter section of your walmart. they have carcoal for air filters which is designed to absorb stuff and not cook food.
 
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DOPEYCDXX

Member
I did not use cooking charcoal to many chemicals and binders as well as low quality i used aquarium activated charcoal instead trans planted into a 20 gallon pot after flushing with 1 1/2 gallons of water with bush doctors sledge hammer using fox farm ocean forest soil i pruned because the plant is getting to tall for my space.
 
*BUDS

*BUDS

Well-Known Member
DOPEYCDXX said:
i have a 1000w duo core bulb, water coled hood, an ac unit, a fan,and a inline fan,and CO2 from the tank no burning gases
I use RO water or reverse osmosis
for nutes i am using

vitamin b for plants
Iguana grow
Kangaroots benificail microbes bacteria and fungi
sensizyme
and maxicrop liquid seaweed
also using thunder humic and fulvic acid

the strain is Super Lemon Haze from the Green House seed company

The Leaves began to curl and turn yellow 2 to 3 weeks ago now the problem is becoming severe. I am going to try and flush it using some bush doctors sledge hammer from fox farm i will keep posting the results. I already flushed it once with plain RO water. You can see the plant in the pics i posted.

Help would be very much appreciated
Click to expand...
stop feeding it as its over fertilized.flush again ,wait a week then bring backnutes at 3/4 strg you were using.Those leaves will never recover but new growth will.
 
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