What about termites in raised beds? Cardboard... YUM!
Termites eat wood. We had household items stored in one of those rental storage unit places and they came up from a crack in the floor and found a box of books to start a buffet in. We are told here to use cardboard in the bottom of your raised bed and to add a layer of sticks and dead branches, etc. Termites will eat cardboard, and the dead wood of course. So who's raised beds are infested with termites? Do you even know if they are? How close are your beds to your house? I would think that termites aerate the soil and help the wood and cardboard break down, a good thing, yes? Unless they also eat your house. Not good. If you have a termite baiting system, will they eat that (and DIE) or ignore it because there is plenty of other food for them in your raised beds? Even if you have metal raised beds, if you Hugel then you are feeding termites. Thought? (And prayers?)