Leaf problem - Cannabis Infirmary - International Cannagraphic Magazine Forums

11-22-2005, 10:36 PM

got this on a couple of my Arcata's and one of my K2's..... Any Ideas?

Organic Hydro · 11-23-2005, 12:15 AM

When i see something like that, my first thought is PH, but without you providing any details, that's as good i could guess.

How about some more info man ?

Peace

11-23-2005, 01:07 AM

Soil Ocean forrest/perlite 70/30 mix

PBP nutes, Cal mag.

Ro Water- Ph of 6-6.5

Organic Hydro · 11-23-2005, 01:45 AM

After you add your nutes & cal-mag to the water it tests out at 6 - 6.5 ?
and are you leaching about 10 - 20 % of the water you add as runoff ?
might wanna get a soil PH meter if you dont have one already and adding some dolomite limestone to your mix is a good idea too.

resinryder · 11-23-2005, 02:06 AM

Maybe an iron def. Try some iron star from biotanicare.

11-23-2005, 02:46 AM

Mag lock out caused by PH problem.

(Pic borrowed directly from the Sick Plant Guide by mynamestitch for illustration purposes only). See the Guide for symptoms and corrective measures.

Capt. Crip · 11-23-2005, 03:37 AM

You will notice the dark green coming back into the leaves.The damage is irreversible but the undamaged portion will grow normally.It's mag. Potassium or iron and probably happened because of a PH fluxuation.Most fertilizers contain enough of these nutes to provide a balanced diet for cannabis but if the PH drifts many will be locked up and unavailible to the plant.
Usually a good dose of PH adjusted water with a normal dose of your favorite fertilizer will clear that type of problem right up.
Take care and I hope all goes well with the rest of your grow.......................CC

If you would use something like GH Flora Nova 1 part nutrient mix every 2nd or 3rd feeding they would stay dark green throughout the whole grow cycle.It has everything to keep them growing perfectly and they pretty much grow themselves with this wonderful fertilizer.
I understand if you have your preferred nute mix,I just thought it worth a mention with the weay it grows our favorite plant.
Take care........

11-22-2005, 10:36 PM	#1
James-Bong Guest Posts: n/a	Leaf problem got this on a couple of my Arcata's and one of my K2's..... Any Ideas?
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11-23-2005, 12:15 AM	#2
Organic Hydro Banned Join Date: Feb 2005 Location: At My Desk Posts: 781	When i see something like that, my first thought is PH, but without you providing any details, that's as good i could guess. How about some more info man ? Peace
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11-23-2005, 01:07 AM	#3
James-Bong Guest Posts: n/a	Soil Ocean forrest/perlite 70/30 mix PBP nutes, Cal mag. Ro Water- Ph of 6-6.5
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11-23-2005, 01:45 AM	#4
Organic Hydro Banned Join Date: Feb 2005 Location: At My Desk Posts: 781	After you add your nutes & cal-mag to the water it tests out at 6 - 6.5 ? and are you leaching about 10 - 20 % of the water you add as runoff ? might wanna get a soil PH meter if you dont have one already and adding some dolomite limestone to your mix is a good idea too.
	Quote

11-23-2005, 02:06 AM	#5
resinryder Rubbing my glands together Join Date: Feb 2005 Location: In a van down by the river!! Posts: 10,803	Maybe an iron def. Try some iron star from biotanicare. __________________ I'll quit growing my meds the day they rip the bong from my cold dead hands! Absolute power corrupts absolutely. Even on a canna board.
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11-23-2005, 02:46 AM	#6
Guest Guest Posts: n/a	Mag lock out caused by PH problem. (Pic borrowed directly from the Sick Plant Guide by mynamestitch for illustration purposes only). See the Guide for symptoms and corrective measures. Last edited by 1tokeOverLine; 11-23-2005 at 02:48 AM..
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11-23-2005, 03:37 AM	#7
Capt. Crip Strain Seeker/Mirage Reading Master Join Date: Jan 2004 Location: reading mirage at 1000 meters... Posts: 3,911	The problem is fixed You will notice the dark green coming back into the leaves.The damage is irreversible but the undamaged portion will grow normally.It's mag. Potassium or iron and probably happened because of a PH fluxuation.Most fertilizers contain enough of these nutes to provide a balanced diet for cannabis but if the PH drifts many will be locked up and unavailible to the plant. Usually a good dose of PH adjusted water with a normal dose of your favorite fertilizer will clear that type of problem right up. Take care and I hope all goes well with the rest of your grow.......................CC If you would use something like GH Flora Nova 1 part nutrient mix every 2nd or 3rd feeding they would stay dark green throughout the whole grow cycle.It has everything to keep them growing perfectly and they pretty much grow themselves with this wonderful fertilizer. I understand if you have your preferred nute mix,I just thought it worth a mention with the weay it grows our favorite plant. Take care........ Last edited by Capt. Crip; 11-23-2005 at 03:41 AM..
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