Is This A Deficiency?

4HydrogenAtoms · Jul 26, 2013

Hi.
I was just wondering what is cause these Leaf Curls & Deformed Leaves.. And light yellowing of the leaves in certain parts?

Seamaiden · Jul 27, 2013

Simple answer is yes, a deficiency. However, it appears to be a slight deficiency due to improper pH, if I were to guess (and I am guessing). It's helpful to know a few parameters here.

Feed?
Water (quality)?
pH?
Temperature?
Relative humidity?

Budwiser0908 · Jul 28, 2013

4HydrogenAtoms said:
Hi.
I was just wondering what is cause these Leaf Curls & Deformed Leaves.. And light yellowing of the leaves in certain parts?View attachment 329337 View attachment 329338

I'm probably just paranoid and perhaps Seamaiden is correct, but the twisting of the leaves would have me looking for pests. Specifically, root aphids as well as broad mites will cause similar discoloration and disfigurement of the leaves. I would get the scope out and check the leaves and take a hard look in your medium for things moving. Water first and get a chair and sit and stare hard for signs of movement. SOmetimes it takes a few minutes for it be detectable.

Cort · Jul 28, 2013

Id check runoff for ph problems before i worried about pests. PH can twist leaves too, and causes all kinds of lockout deficiencies.

Seamaiden · Jul 28, 2013

I do think that Budwiser has made a good point, and it's better to be proactive rather than reactive. Doesn't take much more time to set and check for pests than it does to test pH and other parameters. But looking at it again, to *my* eyes, it looks like a lockout or pH issue moreso than disease or pests.

4HydrogenAtoms · Jul 28, 2013

Seamaiden said:
Simple answer is yes, a deficiency. However, it appears to be a slight deficiency due to improper pH, if I were to guess (and I am guessing). It's helpful to know a few parameters here.

Feed?
Water (quality)?
pH?
Temperature?
Relative humidity?

-My Feed Is Relatively lower than what is asked to be used.
-Water Quality is Natural Rain Water.
-TDs readings give me around 850-860 (My Electric Ph meter broke so I've been using a liquid test indicator with results of 5.0-6.0ph)
-Temperature min. 77F max. 91 F
Humidity flux between 30%-60% Never lower than min or higher than max to date.

4HydrogenAtoms · Jul 28, 2013

Budwiser0908 said:
I'm probably just paranoid and perhaps Seamaiden is correct, but the twisting of the leaves would have me looking for pests. Specifically, root aphids as well as broad mites will cause similar discoloration and disfigurement of the leaves. I would get the scope out and check the leaves and take a hard look in your medium for things moving. Water first and get a chair and sit and stare hard for signs of movement. SOmetimes it takes a few minutes for it be detectable.

Been using my scope pen and no pest found, turned off bubbler to notice any movement in water and nothing...

4HydrogenAtoms · Jul 28, 2013

Thanks guys, Im going to trouble shoot this problem over the next 2wks...
Back off on Feed and lighting distance..
-Also started Magic Green foliar spray, doing very well with my soil grow so far and color and strength of leaves. Noticed there fan like rather than droopy.
Will try this on my hydro grow.
I will keep you guys updated.

Seamaiden · Jul 28, 2013

4HydrogenAtoms said:
-My Feed Is Relatively lower than what is asked to be used.
-Water Quality is Natural Rain Water.
-TDs readings give me around 850-860 (My Electric Ph meter broke so I've been using a liquid test indicator with results of 5.0-6.0ph)
-Temperature min. 77F max. 91 F
Humidity flux between 30%-60% Never lower than min or higher than max to date.

Do you test TDS/EC prior to adding nutrients? Is it possible to get the temps a wee bit lower? I haven't grown pure hydro (yet), so I can't speak to those pH parameters, they do seem a bit wide to me, but not outside of acceptable parameters... 5.0 may be getting a bit low. I find myself wondering if the plant's really getting a fully balanced feed. Can you post up its label information, please?

3oShivaRider · Aug 23, 2013

4HydrogenAtoms said:
Hi.
I was just wondering what is cause these Leaf Curls & Deformed Leaves.. And light yellowing of the leaves in certain parts?View attachment 329337 View attachment 329338

the curling could be genetic...but it could also be pH...you need more accuracy than 5-6 pH, anything below 5.5 is a bit iffy if you leave room for pH measurement error...

jfizzle2cmu · Aug 23, 2013

Seamaiden said:
Do you test TDS/EC prior to adding nutrients? Is it possible to get the temps a wee bit lower? I haven't grown pure hydro (yet), so I can't speak to those pH parameters, they do seem a bit wide to me, but not outside of acceptable parameters... 5.0 may be getting a bit low. I find myself wondering if the plant's really getting a fully balanced feed. Can you post up its label information, please?

3oShivaRider said:
the curling could be genetic...but it could also be pH...you need more accuracy than 5-6 pH, anything below 5.5 is a bit iffy if you leave room for pH measurement error...

Yeah, 5.0 is getting down there. At 5.0 ph Phosphorus is readily available but at the point where it will start to taper off big time if your meter is reading high or if your ph takes a dip for some reason. In addition, Aluminum skyrockets to deadly levels. Phosphorus becomes 1000x less available at 4.0 ph than at 5.0, and Aluminum becomes 1000x more available. So definitely try to keep a bottom of 5.3-5.5. I personally never liked going below 5.6. It seemed it took a day, day and a half longer for the plant to start using nutes. If I started at 5.7-5.9, they fed like crazy from the get go.

Is This A Deficiency?

Is This A Deficiency?

4HydrogenAtoms

Seamaiden

Living dead girl

Budwiser0908

Cort

Seamaiden

Living dead girl

4HydrogenAtoms

4HydrogenAtoms

4HydrogenAtoms

Seamaiden

Living dead girl

3oShivaRider

jfizzle2cmu

Is This A Deficiency?

Is This A Deficiency?

4HydrogenAtoms

Seamaiden

Living dead girl

Budwiser0908

Cort

Seamaiden

Living dead girl

4HydrogenAtoms

4HydrogenAtoms

4HydrogenAtoms

Seamaiden

Living dead girl

3oShivaRider

jfizzle2cmu

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