Brown & yellow virus looking marking on leaves

[Faithin420]

Hello,

Im currently at week 4 and I have had real weird markings come up on leaves. Started as brown spots, has gotten bigger and has yellow and rust colour to it. Will post photos.

Using coco, airpot system, 60w hps and Canna nutes- Rhizotonic, Coco A+B and Cal/Mag. Ph-ing to 5.9, last water 2 days ago 0.5ec. Heated to 28°c... about to post photos...

 

[Preston9mm]

Hello,

Im currently at week 4 and I have had real weird markings come up on leaves. Started as brown spots, has gotten bigger and has yellow and rust colour to it. Will post photos.

Using coco, airpot system, 60w hps and Canna nutes- Rhizotonic, Coco A+B and Cal/Mag. Ph-ing to 5.9, last water 2 days ago 0.5ec. Heated to 28°c... about to post photos...

My guess would be cal/mag needs a boost. Here's a couple common deficiencies...

Hope ya get er figured out!

-P

 

[Faithin420]

My guess would be cal/mag needs a boost. Here's a couple common deficiencies...

Hope ya get er figured out!

-P

thank you so much. The Calcium one discribes its best!

 

[Preston9mm]

thank you so much. The Calcium one discribes its best!

My thoughts too. The N deficiency will cause a bit of clawing on the leaves. Yours didn't appear to show those signs. Nice dose of cal/mag, she should bounce right back.

 

[IGBG]

poor baby, cal/mag please! Yeah cal/mag will fix it, but if you are already using cal/mag, stay with what your using and just add 100ppm of magnesium sulfate to your base. You know I tend believe that leaves showing me that are somehow suffering a sulfate issue. But I have repeatedly tried to fix this problem with just using sulfate or just using magnesium and neither of them work by their self, but together they seem fix this kind of problem without further issues! As a side note... I now use a combination of cal/mag and epsom salt in my base because I would rather deal with a toxicity issue, then to be plagued with a deficiency that I have found is more common than what most people believe! What I mean by that... the cannabis plant naturally needs more magnesium sulfate than what we believe!

 

[Faithin420]

I watered 2 days ago an the new growth is perfect. I has stepped up both cocoa+b (my strongest nute for nitrogen i believe) and cal/mag anyway... i'll post some pics tomorrow.
Thanking everyone for the input so far

 

[waknbak88]

Think I'm having the same problem.

 

[Faithin420]

Think I'm having the same problem.

 

[Faithin420]

So three of them have really brounced back the two at the back not so much. The plants look seriousy nitrogen deffecient. Haw can the front 3 have got enough nitrogen and not the back too? Could there be a problem with my airpot system?