Like in your other question, no plant will ever have 100% perfect leaves, 100% of the time. It could be absolutely nothing but a slight defect/injury, or could also be your theory of fertilizers on the leaves. Bugs are usually underneath the leaves and have different "evidence" than these marks, generally being circular, speckled, or in lines. Wind/air circulation will not deter bugs, but can prevent fungus. Besides, I personally don't think either of these is responsible for the burn marks.
Please see my opinion which I gave in your earlier question.
Thanks,.......... Organoman.