Since I do raised beds outdoors, this incurs some maintenance. As time goes by your beds get compacted and soil needs rejuvination from nutrient loss.
Aside from a buildup of fiberous root material that can restrict growth, your beds can also harbor grubs & cutworms. I noticed a smaller yield the previous season so I built a large garden sifter frame (pictured at the top of the article). I used scrap wood and leftover 1/4″ hardware cloth I used to screen the bottom of the raised beds. Park it next to the bed and shovel -load it and use a garden claw or trowel to work it through the screen Add in your amendment, screening that additional soil in too,
We found 1 grub ….
And, like cockroaches, you find more…
If you keep chickens they will absolutely love the treat.
To keep these pests in check I advise no drenching pesticides, Instead, biological control of Beneficial nematodes
Add these at night, after any chance of frost is over. They are parasitic to the grubs and harmless to us/yard pets. I found one dead hollowed out grub the next season.