The nematodes are doing their job
I remixed up some of the containers... adding perlite, rock phosphorus, and coir to lighten up the soil and improve water retention- these containers will be used for our peppers and tomatoes. They had already been treated with beneficial nematodes a few weeks ago.
In the dirt I found several Japanese beetle grubs- they were yellowed and sickly, signs that they had been attacked by the nematodes.