Almost ALL leaves yellowing & dying

TheGrandPuba · 08-07-2009, 03:51 PM

So my friends sativa is in week 6 of flower and almost all the leaves are yellowing and falling off. Not just the large fan leaves but tiny ones as well.

I checked out the nutrient deficiency chart on this site and thought he might need to add a chemical fert with Molybdenum. So he used "Floramicro" at half strength for a few feeds but the leaves are still falling off like crazy. I know it is expected that some of the larger fan leaves will fall off and die but all the leaves shouldn't be doing this should they?

The buds look pretty nice for week 6 but I just want to know what's going wrong. It had been overfed with bat guano at one point but was flushed afterward.

The temps are quite hot (around 24/25 Celsius on the topsoil) but there is sufficient air movement.

Any insight is greatly appreciated.

**farmergiles** · 08-07-2009, 03:54 PM

What feeding have they been getting? Soil mix? Is the water pH adjusted? Pics would help.

TheGrandPuba · 08-07-2009, 05:34 PM

She has been fed with 7ml of blood meal and bone meal per liter of soil, 10 percent worm castings, and just recently too much bat guano (live and learn). Also "FloraMicro" at half strength every 3rd water or so.

The water is just tap water that sits out for a couple of days before watering.

I'll see if I can get pics and post em later.

**farmergiles** · 08-07-2009, 07:33 PM

The water may be way too alkaline.

sirsmokalot989 · 08-08-2009, 09:56 AM

^ I agree... Do you test your ph? You can get a ph tester for 5$... If ph is to high or low it prevents certain nutrients from being able to be broken down... Which can cause leaves to die
IMO you may have a ph problem... My tap water is at 8.5 when it comes outa my faucet...
If the ph is off buy some ph down (cheap) and or use lemon juice to even it out

**farmergiles** · 08-09-2009, 01:51 AM

When did the guano overfeeding incident occur? How was the guano added? A surplus of one nutrient can block the uptake of another so that overfert can look like deficiency.

TheGrandPuba · 08-10-2009, 11:07 AM

It was overfed on the first week of flowering. The guano was put on the topsoil.

I just checked the ph of the water using this thing http://s3.amazonaws.com/tc-photos/11...ant/510209.jpg and the water turned blue so the PH is around 7.5 I guess. Do you need a different amount of PH for flowering or should it always be around 7?

Thanks again.

romo420 · 08-11-2009, 03:58 PM

i would keep my plants Ph in flowering at 5.8 to 6.5

7.5 i think is too high

**farmergiles** · 08-11-2009, 04:17 PM

Flowering or veg I go for 6 -6.5 in soil.

A blue result for a pH test would probably indicate 7.5 or more depending on the test kit used. pH adjusted water would definitely help- not sure if this is the only issue in this case.

If the guano incident was five weeks ago you can probably discount that.

08-07-2009, 03:51 PM	#1 (permalink)
TheGrandPuba amateur gynecologist Join Date: Nov 2003 Location: in my head Posts: 2,589 Thanks: 40 Thanked 59 Times in 38 Posts	Almost ALL leaves yellowing & dying So my friends sativa is in week 6 of flower and almost all the leaves are yellowing and falling off. Not just the large fan leaves but tiny ones as well. I checked out the nutrient deficiency chart on this site and thought he might need to add a chemical fert with Molybdenum. So he used "Floramicro" at half strength for a few feeds but the leaves are still falling off like crazy. I know it is expected that some of the larger fan leaves will fall off and die but all the leaves shouldn't be doing this should they? The buds look pretty nice for week 6 but I just want to know what's going wrong. It had been overfed with bat guano at one point but was flushed afterward. The temps are quite hot (around 24/25 Celsius on the topsoil) but there is sufficient air movement. Any insight is greatly appreciated.

08-07-2009, 03:54 PM	#2 (permalink)
farmergiles Yahookan Join Date: Sep 2006 Location: In My Fire Engine Posts: 7,134 Thanks: 2,040 Thanked 3,167 Times in 2,191 Posts	What feeding have they been getting? Soil mix? Is the water pH adjusted? Pics would help. __________________ Cultivate a stoic calmness *Fuck the Monkeys*

08-07-2009, 07:33 PM	#4 (permalink)
farmergiles Yahookan Join Date: Sep 2006 Location: In My Fire Engine Posts: 7,134 Thanks: 2,040 Thanked 3,167 Times in 2,191 Posts	The water may be way too alkaline. __________________ Cultivate a stoic calmness *Fuck the Monkeys*

08-09-2009, 01:51 AM	#6 (permalink)
farmergiles Yahookan Join Date: Sep 2006 Location: In My Fire Engine Posts: 7,134 Thanks: 2,040 Thanked 3,167 Times in 2,191 Posts	When did the guano overfeeding incident occur? How was the guano added? A surplus of one nutrient can block the uptake of another so that overfert can look like deficiency. __________________ Cultivate a stoic calmness *Fuck the Monkeys*

08-11-2009, 03:58 PM	#8 (permalink)
romo420 YaHookan Join Date: Aug 2009 Posts: 10 Thanks: 1 Thanked 4 Times in 2 Posts	ph too high i would keep my plants Ph in flowering at 5.8 to 6.5 7.5 i think is too high

08-07-2009, 05:34 PM	#3 (permalink)
TheGrandPuba amateur gynecologist Join Date: Nov 2003 Location: in my head Posts: 2,589 Thanks: 40 Thanked 59 Times in 38 Posts	She has been fed with 7ml of blood meal and bone meal per liter of soil, 10 percent worm castings, and just recently too much bat guano (live and learn). Also "FloraMicro" at half strength every 3rd water or so. The water is just tap water that sits out for a couple of days before watering. I'll see if I can get pics and post em later.

08-08-2009, 09:56 AM	#5 (permalink)
sirsmokalot989 YaHookan Join Date: Sep 2008 Posts: 313 Thanks: 272 Thanked 108 Times in 80 Posts	^ I agree... Do you test your ph? You can get a ph tester for 5$... If ph is to high or low it prevents certain nutrients from being able to be broken down... Which can cause leaves to die IMO you may have a ph problem... My tap water is at 8.5 when it comes outa my faucet... If the ph is off buy some ph down (cheap) and or use lemon juice to even it out

08-10-2009, 11:07 AM	#7 (permalink)
TheGrandPuba amateur gynecologist Join Date: Nov 2003 Location: in my head Posts: 2,589 Thanks: 40 Thanked 59 Times in 38 Posts	It was overfed on the first week of flowering. The guano was put on the topsoil. I just checked the ph of the water using this thing http://s3.amazonaws.com/tc-photos/11...ant/510209.jpg and the water turned blue so the PH is around 7.5 I guess. Do you need a different amount of PH for flowering or should it always be around 7? Thanks again.

08-11-2009, 04:17 PM	#9 (permalink)
farmergiles Yahookan Join Date: Sep 2006 Location: In My Fire Engine Posts: 7,134 Thanks: 2,040 Thanked 3,167 Times in 2,191 Posts	Flowering or veg I go for 6 -6.5 in soil. A blue result for a pH test would probably indicate 7.5 or more depending on the test kit used. pH adjusted water would definitely help- not sure if this is the only issue in this case. If the guano incident was five weeks ago you can probably discount that. __________________ Cultivate a stoic calmness *Fuck the Monkeys*

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