Right now, the depletion status of a planet is only visible on the Star System Management screen (that you get to from clicking on a system from the galaxy map). So when you have a lot of Cravers population, micromanaging how fast your planets deplete requires clicking through all the systems.


The Systems Management (F1) screen has lots of useful information, but no indication of depletion. When you click on a planet in the Status or Population column for a planet, you get a view of the planets in the system. 



The icon for depletion and turns until depletion could be added (maybe to the right of the planet name or planet type) for any planets with depletion points. Mousing over the icon could show the tooltip with turns to depletion and depletion points. It might look like this: