Can anyone speculate on what is happening with my Chinese lantern plant? The bottom leaves keep turning yellow and there are little holes in them. I haven’t caught any bugs red handed but I see sugar ants on the philodendron right next to them so I know SOMETHING is sucking on my plants! 😡 These are south facing, zone 9, just fertilized and alternately sprayed with neem oil and horticulture oil in the last month (with time in between for recovery). Thanks in advance.

