Multi Strains in Sick Bay - Help Diagnose Por Favor

P

PVFISHBUM

Active Member
Well Boys and Girls I am challenged with trying to manage several problems trying to grow the following strains in the same flower room:

Lemon Kush
Master Kush
Sour Diesel
GDP
White Russian
LA Confidential

This is an indoor grow - three weeks into 12/12.
Flood/Drain Hydro on the full line of House & Garden Nutes + Great White. Water 30 minutes every 12 hours.
1000W HPS on air cooled hoods.
Fresh Air Intake & Carbon Filter Exhaust
pH = started out at 5.2 but was told to go to 5.8 but am always having to bring down.


My main trouble is yellow leafs near bottom of plant with brown/gray spots. Leaves gradually turn up and crispen.

I was told by my clone man that this may be an airborne pathogen brought in from the fresh air intake which is near a huge palm tree that looks like it has mold trouble???? See pic below. SO - I added a HEPA filter to the 6" duct.

I was told by the local Hydro Shop that these symptoms are probably a Mag deficiency - SO I added Botainicare Cal-Mag. I flush every 2 weeks w/ Florakleen and mix a new batch a nutes. Using RO Water for both flush and nute soup.

Hoping some of the Veterans around here would take a look see and lend their diagnosis & advise on cure.

Thanks a million for feedback. I hate to see these girls under the weather. Bums me out to watch them suffer.:mrgreen:
 

Attachments

lampshade

lampshade

Well-Known Member
PVFISHBUM said:
Well Boys and Girls I am challenged with trying to manage several problems trying to grow the following strains in the same flower room:

Lemon Kush
Master Kush
Sour Diesel
GDP
White Russian
LA Confidential

This is an indoor grow - three weeks into 12/12.
Flood/Drain Hydro on the full line of House & Garden Nutes + Great White. Water 30 minutes every 12 hours.
1000W HPS on air cooled hoods.
Fresh Air Intake & Carbon Filter Exhaust
pH = started out at 5.2 but was told to go to 5.8 but am always having to bring down.


My main trouble is yellow leafs near bottom of plant with brown/gray spots. Leaves gradually turn up and crispen.

I was told by my clone man that this may be an airborne pathogen brought in from the fresh air intake which is near a huge palm tree that looks like it has mold trouble???? See pic below. SO - I added a HEPA filter to the 6" duct.

I was told by the local Hydro Shop that these symptoms are probably a Mag deficiency - SO I added Botainicare Cal-Mag. I flush every 2 weeks w/ Florakleen and mix a new batch a nutes. Using RO Water for both flush and nute soup.

Hoping some of the Veterans around here would take a look see and lend their diagnosis & advise on cure.

Thanks a million for feedback. I hate to see these girls under the weather. Bums me out to watch them suffer.:mrgreen:
Click to expand...
Dude that looks bad, ive never seen that on cannabis. But it looks like sooty mold, and if that is the case the only way to control it is to stop the insect causing it. Aphids are known to cause sooty mold, try to see if you cant find some bugs in there. Check under the leaves and on the stems.
Also if you havnt already i would cut off the blades that are badly affected.
 
P

PVFISHBUM

Active Member
I pulled the infected leaves off and am thinking about a sulphur spray for garden fungicide. Will post some update pics tonight.

Funny thing is the spots seem more inside the leaf rather than on the surface. No sign of bugs - but I haven't checked with a scope yet.
 
jolly8541

jolly8541

Well-Known Member
you've got a phosphorus deficiency, I've been dealing with the same symptoms on my plants. Nute lock out or maybe you need to increase your nute concentrations. Add some time release organic flowering nutes or foliar feed with epsom salts.
 
You must log in or register to reply here.
Top