What is this?

[marcus44]

Anybody have any idea on what these spots are?

So far, it is only on one fan leaf of one plant.

Anyone?

Thanks
Marcus

 

[koregon]

it could possibly be mold but the picture is blurry so its hard to tell.

 

[skinneh]

maybe you splashed some water/liquid on that leaf and now the sun/light has burnt it looks like a magnification (if thats a word hehe) burn to me but again abetter picture will help.

 

[marcus44]

Yeah, sorry about the quality of pic, it's a phone picture....
The plant is inside and near the furnace. The temp is pretty stable and the humidity is whatever the humidity is on any particular day. East coast NY.
It is limited to this leaf and one other. I do not see any more on either of my other plants.
I am checking for mites etc, but do not see anything.
Overall, the plant is healthy and entering into flowering and was curious if anybody had any ideas on this.
It is smooth, no damage and does not look like it is spreading.
I have used some worm castings in a spray, but the sprayer broke....probably an omen..lol
I am going to return to soil feeding.

thanks
Marcus