Disease? or other?

[Untold]

A problem has started that I haven't seen before. It looks like rust. It begins in the main veins of relatively new growth, killing the leaf from the inside out.

Older leaves are not affected as much as the newer ones. It is especially apparent in the tender newest leaves trying to grow from the tops. It halts the growth of the plant, as it struggles to survive against this problem.

 

What could it be? It's affecting nearly all my indicas, but not my sativas, even though they are planted together.

[F420]

Any pics??

 

http://www.overgrow.com/growfaq/1382

[Spurious]

It looks like rust.

 

 

Is it rust? As in the fungal disease?

[jackfrost]

hey untold,

 

more info needed mate, what type of grow is it - what nutes you are using, your ec, your ph, room temp, room RH , your inlet fan setup/co2, res temp, etc,etc ---> could be a number of things, need to narrow it down a bit.

 

Provide some more info and ill do my best

 

Jack