Indoor Discoloured leaf - Diagnosis?

[Dr. Babnik]

WW, leaf

• Dr. Babnik
• Apr 9, 2016

What is wrong here?

I just observed a discolouration of a fan leaf.

Is it natural, a disease or something I've done?

 

[Discretepete2676]

Auto? What day is it on. Could b the onset of cal. Deficiency. It looks like a couple of the leaf edges are getting discolored as well maybe? It is only on that leaf?

 

[Dr. Babnik]

It's a White Widow auto on day 28.
I found one more affected leaf. Here is some more pics.

WW, day 28, #2

• Dr. Babnik
• Apr 9, 2016

Leaf problem

WW, day 28, #3

• Dr. Babnik
• Apr 9, 2016

Leaf problem

WW, day 28, #4

• Dr. Babnik
• Apr 9, 2016

Leaf problem

WW, day 28, #5

• Dr. Babnik
• Apr 9, 2016

Leaf problem

 

[Ripper]

the new growth looks fine... what are you feeding them and how much... and I agree it may be early cal def.. are you giving and cal mag?

 

[Ripper]

and how many leaves total are effected?

 

[Dr. Babnik]

2 leafs are strange. The one with discolouring and another one where the tip curls inward. The pics are not optimal.

WW, day 28, #2

• Dr. Babnik
• Apr 9, 2016

Leaf problem

WW, day 28, #3

• Dr. Babnik
• Apr 9, 2016

Leaf problem

WW, leaf

• Dr. Babnik
• Apr 9, 2016

What is wrong here?

I have not given Ca-Mg.
I fed her today with Hesi TNT Complex, Root Complex, SuperVit. and Powerzyme. I use 1/3 dose of TNT.

Is dolomite ok? It is 21% Ca and 13% Mg.
If so, I'll order it asap.

 

[Ripper]

The one I like is by natural organics called CaMg+ and the reason I like it is because it is 0-0-0 .. By any chance have those leaves touched the dirt for any period of time or could it be nute splash.. And giving cal mag I do every other mix of feed for maintenance...

 

[Marty5678]

I'm growing a WW Xxl at moment, and when feeding the lower fan leaves got submerged in nutes. Looks exactly the same. So probably just that. But a feed of cal/mag won't hurt.

Marty

 

[Ripper]

We can always ask @Waira to come take a look

 

[Waira]

-- Hmmm, such early symptoms, hard to say for sure,... Ca defc. is my best guess at this stage... dolomite is great as a slow acting soil amendment, but not a defc. treatment; get something like Ripper mentioned, a dedicated liquid Ca-Mg supplement which is absorbable right away- .... that tip curl on a lone leaf could be a few things, but unless other leaves start showing the same thing, nothing noteworthy there,...