Rust on my leaves

[Rhcp420]

I have a few plants that are 6 weeks in flower and I notice some rust spots on the leaves.
I have been using fox farm grow big big bloom and tiger bloom. Every couple feeds I've also added a teaspoon of molasses and in the first week I used big up powder 0 - 33 - 23 even less than the recommended dose. My pH has been around 5.7 to 6.0. I think it might be a Cal Mag deficiency ???
Any help will be greatly appreciated

 

[macsnax]

Hard to tell from your pic. Check this out. http://www.growweedeasy.com/marijuana-symptoms-pictures

 

[SouthCross]

Bugs. Possibly thirps or mites. They start out as white dots then the dots go brown in center.

 

[Rhcp420]

I looked really close and I didn't see anything also I didn't have any white dots. I checked my leaves thoroughly both top and bottom at least once a week.

 

[im4satori]

I also think it calcium def

 

[Wigiberto]

That happened to me too on some leaves and I think it is the beginning of more severe nute burn.

 

[im4satori]

That happened to me too on some leaves and I think it is the beginning of more severe nute burn.

id agree it could possibly be some kind of nute imbalance causing lock out

 

[Rhcp420]

Well the plants are starting to look a little better thank you everybody for all your help. I actually added some cal-mag and reduced my normal feeding.