need help! unknown defect...

[Wretched]

Ok i got this plant that starting showing some dry brown spots on they lower fan leaves a week or so ago and it looks like one of my bigger plants is starting to show the same problem now what it looks like to me is mag or boron im not sure at all! it almost seems like it spread from one plant to another but i doubt it maybe they are all suffering from the same issue.. give me your comment i need some help fixing this let me know what you think!!

on my bigger plants it dry out parts of the leaves without turning them a color.. could this be nute burn from watering??


help me?

 

[stealthScrog]

i feel your pain man...i have a very similar problem but I'm still not sure whats causing it.
It might help if you filled out that infirmary report (see my post)
good luck

 

[greenisgold]

It looks as if you are are foliar feeding and if you are not, then that sure looks like rust spots which come about to do PH problems.
What are feeding them with, how much and what is the ph of your water/nutes?

 

[Wretched]

im feeding them right now 1TBL floragro.. with guano between feedings...

water ph is between 6.5 -7.0 with nutes its between 5.5 - 6.5

no foliar feeding.
over all the plants look very healthy besides this defect and im not sure wtf it is...

 

[Wretched]

anybody got anything for me???