I have a number of indoor philos. Recently new leaves on some plants have started to show strange perforations. I pull those leaves off, thinking it might be a fungal infection,. but then more happen. What's going on??
That's the whole plant? Hold your hand over the plant between your fingers and tip the plant out of the container. Get a look at the roots and see if they are mushy or black. If your roots are white and healthy then your plant has mechanical damage and not a fungus. I don't see a fungus on your plant. If you not sure about the way the roots look then post a photo of the root ball.
It could be damage caused to the young leaf before it uncurls and expands, so the holes get bigger. Given the thinning you can see around some of the holes I'd have a look for a small snail or slug in or around the growing point.
Hey! This actually looks like a golden pothos to me... is it close to a heat register? I know it’s June and people aren’t using heat right now but still. It could also be due to a lack of humidity. It doesn’t look like a pest problem to me... it might also need new soil or a fertilizer... could be nutrient deficiency....