it could also be an insect

this looks like herbicide damage to me . Is this a young plantation with herbicide used around the trees  ?

This appears to be a rust disease caused by rust fungi.

I agree with Gianfranco Romanazzi . These symptomps seem to be insect infestations.

This is symptom of the fig-tree Skeletonizer moth or Fig Leaf Roller (Choreutis nemorana).

Have you checked for fungal infection? I suggest you make a microscopic preparation (scraping in lactophenol cotton blue) and check under the microscope for fungal spores (e.g., Alternaria).

I agree with  Sir  Mohammed Saleem. You need make some impressions or samples under a microscope to observe with  lactophenol blue, acid fushina.etc... agares perform mycological plantings.

There are many similar symptoms in leaves and the causative agent can be a fungus, an insect or the action of a herbicide.

Dear All,

From the pictures one can but guessing. Unfortunately, the symptoms are uncertain because of the photos’ quality and magnification. As many put it a thorough examination (phytopathologic and entomologic) is needed. I think the least likelihood may be a herbicide effect.