Plant Moisture Stress - Symptoms and Solutions

**Majestic Pagent** · 05-06-2009, 11:26 AM

They are still exhibiting quite bad leaf burn, are growing slowly, and have yellow patches on their leaves. The soil is 25 degrees C. I am keeping the it constantly damp - should I be leaving them to dry out a bit more between waterings? Also, my lights are on 24 hours - I have had mixed opinions as to wether this is a good thing or not.... There are a number of varieties in the pics - some of them are doing much better than others. One set of them are getting fed, and one set are just getting watered, but no great difference is emerging between them.
I'm stumped - any light you could throw on my problem would be greatly appreciated. Thanks

**Uncle Ben** · 05-06-2009, 09:01 PM

Originally Posted by HERBAL ADDICT

i put a thread on rollitup to help people,, i found all the info on another site,, people then winged at me for it, although it did help alot ov people on here

ive read the plant moisture stress article lots of times on all different sites a long time ago,,, so i was just wondering if any one winged at u for posting the plant moisture stress article on rollitup UB?

What do you mean by "winged"? I've had plenty of my ditties plagarized without giving me due credit, if that's what you mean.

Originally Posted by OneHit

UB, what do you mean, score the roots? Cut a little bit?

Cut vertical slices 1/2" deep, about 4 around the rootball when you pop it out to upcan it.

Originally Posted by Majestic Pagent

They are still exhibiting quite bad leaf burn, are growing slowly, and have yellow patches on their leaves. The soil is 25 degrees C. I am keeping the it constantly damp

Looking at the pot size which is oversized IMO, that is probably not a good thing. Once you invite root rot due to anerobic conditions, it's usually impossible to restore proper plant health.

- should I be leaving them to dry out a bit more between waterings?

Yeah, but not to the point of being bone dry.

Also, my lights are on 24 hours - I have had mixed opinions as to wether this is a good thing or not....

Plants need a rest but it's all relative to the amount of photons collected by the leaves over a normal day. Plants like less photons over a longer period of time than being photon blasted over a shorter period of time. Same with plant food or any other cultural ditty.

You just need to find a balance.

Good luck,
UB

**HERBAL ADDICT** · 05-07-2009, 03:51 AM

by winge i mean they complain at me if they have seen the article somewhere else.. but if it helps say 400 out ov 500 that read it then its worth me doing it,, but the other 100 that had read it b4 just complain about it..

dickheads man

**Majestic Pagent** · 05-07-2009, 06:54 AM

ok, thanks for your work and your ditties UB. Looks like everyone is catching on to you as a source of advice! Could I just ask you one last question to clarify pls - do those plants look like they're suffering from moisture stress or some sort of nutrient deficiency/excess?

**Uncle Ben** · 05-07-2009, 06:59 AM

Originally Posted by Majestic Pagent

ok, thanks for your work and your ditties UB. Looks like everyone is catching on to you as a source of advice! Could I just ask you one last question to clarify pls - do those plants look like they're suffering from moisture stress or some sort of nutrient deficiency/excess?

You've got some curling and the start of necrosis going on with the lower leaves. Something is out of balance.

Good luck,
UB

**HERBAL ADDICT** · 05-12-2009, 09:02 AM

hey uncle ben,, got plant problems and its something i havent had b4,,

some/quite a few of my leafs have cupped upwards and and even more have cupped downwards, like claws,,
and instead ov nice dark green leafs im starting to grow paler green leafs,

does this sound like ph problem?

i cant test the runoff as they dont need watering for a good few days yet,,

or if any one else here has had claw leaf and knows the cause i would really like some info,, and +++rep info,,

only thing i think could be a problem appart from ph is the humidity during dark houres is gettin to 89% rh,, is this really bad? what probs cud that cause,,

help help help lol....

**Uncle Ben** · 05-12-2009, 12:38 PM

Originally Posted by HERBAL ADDICT

hey uncle ben,, got plant problems and its something i havent had b4,,

some/quite a few of my leafs have cupped upwards and and even more have cupped downwards, like claws,,
and instead ov nice dark green leafs im starting to grow paler green leafs,

does this sound like ph problem?

No.

or if any one else here has had claw leaf and knows the cause i would really like some info,, and +++rep info,,

Did you read page one of this thread?

**HERBAL ADDICT** · 05-13-2009, 04:35 AM

yea red it,, only it mentions leaf cupping and margin rolling,nute burn+ph problems,

this isnt normal leaf cupping like ive seen before,, its like leafs collapsing into claws and its only 2 plants that are doing it

ive got no nute burn and im using full strength bio canna, ph runoff is 6.3 , ph going in is 6.8,, soil is canna terra pro+, ph 5.5/6.5 says on the bag

u see why im confused,

any way i done a full flush lastnight ,like 50 litres threw 4gal pots then give them fresh full strength nutes,, plants look better today,,

cud it ov been a build up of salts or stuff that caused the claws? ive seen toxic salt build ups cause faint patterns on leafs but never claw leafs

im only watering/feeding once a week.

**punit** · 05-13-2009, 07:21 AM

I have a quick question! What will cause a plant(1.5wks) to just suddenly lay flat on the soil? Is that death? What will cause that?

**petey pete** · 05-13-2009, 07:45 AM

alright lads bit of a noob here. got this yellowing through most of the plants leafs and a bit if red stem cominin through, its not vary prominent yet but its only been doin this for about 5-6 days. Everywhere i read deficiency this, too much of that will lock stuff out. Is there any general thing i can do to help other than flushing. Its in coco soil feeding ionic coco bloom, temp and humidity are bang on. the plants quite old being a cutting and it bubble gum, any ideas would be much appreciated.