Help a noob out... leaf tips curl down - Cannabis Infirmary - International Cannagraphic Magazine Forums

Libalau-Timmay · 03-22-2006, 06:42 PM

Hey All

Ive had these BubbleGum girls growing from seed for the past 3 months.

They are 6 weeks into flowering now.
2 plants Growing in each in its own 10Gal DWC Rubbermaid tub.

PPM 1600- 1800
ph 5.9
Air Temp is about 60 at the stalk & higher at the top near the buds, maybe close to 85.
Water Temp is 55

I have been using Highgrades method of feeding w\ GH nutes & Epsom Salts , Im not using ProTekt like Highgrade does.

I just fed both of them yesterday w\ the same nute GH mix and I come home from work and the 1 plant has curled leaf tips. Only the 1 though..

The tips are curling down . Any ideas. I looked around a little but most of the probs I saw caused thetips to curl up.?.?

Thanks for any advise folks!!

Timmmy

03-22-2006, 07:13 PM

Most likely a little too much Nitrogen available.

yourselfimage · 03-22-2006, 10:09 PM

Pretty sure I have the same prob here. Haven't been able to figure it out.

Libalau-Timmay · 03-22-2006, 10:16 PM

hey yourselfimage it does look like we have the same prob. Any ideas ?

Tell us about your plants

Breed, Soil \ Hydro Nutes Temp , ph etc... lets find some things that are the same.

canine why do you say ?

Thx

yourselfimage · 03-22-2006, 10:20 PM

Strain is nirvanas durban poision in soil that is mixed with 1/2 cup blood/bone meal and peralite. Under a 400w HPS 3 weeks into flowering. Temps between 76-86 depending on ambient temps of the room. Ive been looking for a way to test pH but I can't find a soil pH tester anywhere so I have been not using any nutes and have been watering with distilled water. I think it might be due to high temps but I am really not sure.

Texassativa · 03-22-2006, 10:25 PM

I have had a bagseed plant do the same thing. I grew in soil mixed with blood and bone meal. She had curled leaves and brown tips all the way till flower. She still gave 3.5 oz. But the leaf thing gets on your nerves. Ph was 6-6.5. The meals were mixed 1/2cup each per 5 gallons soil. The plant was heavy sativa. watered with 6.0 ph, Medina Hasta gro 6-12-6, (10ml), maxicrop seaweed(cap full) per gal water.

03-23-2006, 12:25 AM

Quote:

Originally Posted by Libalau-Timmay

canine why do you say ?

Thx

I'm no hydro guy, so keep that in mind. But the condition you are seeing can be caused by (in order of likelihood):

Too much N

pH too high (isn't 5.9 a tad high for hydro?)

Salts build-up

Root damage

Fungus

Directly from the mouth of a very trusted grower. If your roots are healthy and you're pretty on top of your nutes and know the N isn't on the high side, then I would first suspect your pH, then salts.

Hope that helps!

Libalau-Timmay · 03-23-2006, 06:07 PM

Thx a lot Canine, for the advise, that does help, now any suggestions??

I read a doc too that pointed to high N but Im a noob and not sure. How to test for too high N ?

Here is a quote from MynameStitch <-- thx Stitch

Quote:

Hydro and Soil less Mediums
Nitrogen gets locked out of Hydro, Soil less mediums at the levels of 4.5-5.0.
Nitrogen has the best absorption rate at a ph of 5.5 to 8.0
(Wouldn’t recommend having a ph over 6.5 in hydro and soil less mediums.) Best range to have Nitrogen is: 5.0-7.0. Anything out of that range will contribute to a nitrogen def.

Yes, I think 5.9 is on the high side but still within the acceptable levels , no ?

Salt Buildup This is something that is concerning me as I have not flushed the nute solution since day 1. I am wondering if a flush would help. Flushing isnt easy , those tubs are heavy, I need a small pump or something.

roots look OK I think , heres a pic.

fungus I dont think this is a prob but I havnt considered it either. I dont see \ smell any nasty. What to look for ?

mace_ecam · 03-23-2006, 07:19 PM

Claw is caused by toxic levels of N in the leafes, this can have a couple of reasons...

Highgrades formula was the first i think to be published for DWC... a lots of things have happened since highgrade

The GH Grow bottle contains a lots of ammonia, a fast release kind of N, combined with DWC (very fast release medium) its usually to hot. I don't like ammonia for DWC

Salt built ups = high EC in the rootzone in DWC, same thing

Anyways, go easier on the nutes dude

keep your res topped with water or the EC will rise

your pH is cool

mace

mace_ecam · 03-23-2006, 07:19 PM

Ps: Your plants look great!

03-22-2006, 06:42 PM	#1
Libalau-Timmay puffin in the dark Join Date: Feb 2006 Posts: 72	Help a noob out... leaf tips curl down Hey All Ive had these BubbleGum girls growing from seed for the past 3 months. They are 6 weeks into flowering now. 2 plants Growing in each in its own 10Gal DWC Rubbermaid tub. PPM 1600- 1800 ph 5.9 Air Temp is about 60 at the stalk & higher at the top near the buds, maybe close to 85. Water Temp is 55 I have been using Highgrades method of feeding w\ GH nutes & Epsom Salts , Im not using ProTekt like Highgrade does. I just fed both of them yesterday w\ the same nute GH mix and I come home from work and the 1 plant has curled leaf tips. Only the 1 though.. The tips are curling down . Any ideas. I looked around a little but most of the probs I saw caused thetips to curl up.?.? Thanks for any advise folks!! Timmmy
	Quote

03-22-2006, 10:16 PM	#4
Libalau-Timmay puffin in the dark Join Date: Feb 2006 Posts: 72	hey yourselfimage it does look like we have the same prob. Any ideas ? Tell us about your plants Breed, Soil \ Hydro Nutes Temp , ph etc... lets find some things that are the same. canine why do you say ? Thx Last edited by Libalau-Timmay; 03-22-2006 at 10:18 PM..
	Quote

03-22-2006, 10:20 PM	#5
yourselfimage Skiing Cannabis Cultivator Join Date: Feb 2006 Location: In the woods Posts: 66	Strain is nirvanas durban poision in soil that is mixed with 1/2 cup blood/bone meal and peralite. Under a 400w HPS 3 weeks into flowering. Temps between 76-86 depending on ambient temps of the room. Ive been looking for a way to test pH but I can't find a soil pH tester anywhere so I have been not using any nutes and have been watering with distilled water. I think it might be due to high temps but I am really not sure. Last edited by yourselfimage; 03-22-2006 at 10:23 PM..
	Quote

03-22-2006, 10:25 PM	#6
Texassativa Member Join Date: Mar 2006 Posts: 98	I have had a bagseed plant do the same thing. I grew in soil mixed with blood and bone meal. She had curled leaves and brown tips all the way till flower. She still gave 3.5 oz. But the leaf thing gets on your nerves. Ph was 6-6.5. The meals were mixed 1/2cup each per 5 gallons soil. The plant was heavy sativa. watered with 6.0 ph, Medina Hasta gro 6-12-6, (10ml), maxicrop seaweed(cap full) per gal water. __________________ Big nose whore. How the crackhead husband? No cops yet? Keep waiting. Things take time, skank. Last edited by Texassativa; 03-22-2006 at 10:27 PM..
	Quote

03-22-2006, 07:13 PM	#2
Guest Guest Posts: n/a	Most likely a little too much Nitrogen available.
	Quote

03-22-2006, 10:09 PM	#3
yourselfimage Skiing Cannabis Cultivator Join Date: Feb 2006 Location: In the woods Posts: 66	Pretty sure I have the same prob here. Haven't been able to figure it out.
	Quote

03-23-2006, 07:19 PM	#9
mace_ecam Member Join Date: Feb 2006 Posts: 716	Claw is caused by toxic levels of N in the leafes, this can have a couple of reasons... Highgrades formula was the first i think to be published for DWC... a lots of things have happened since highgrade The GH Grow bottle contains a lots of ammonia, a fast release kind of N, combined with DWC (very fast release medium) its usually to hot. I don't like ammonia for DWC Salt built ups = high EC in the rootzone in DWC, same thing Anyways, go easier on the nutes dude keep your res topped with water or the EC will rise your pH is cool mace
	Quote