"Starlord" wrote:

If he lives in an area where the Iris Boarer lives, then he can NOT leave the
dead fans as that is where the moth lays its eggs and it's an invite for trouble
the next spring. Even out here in the Mojave Desert I clean away the dead stuff
and send it to my compost pile.

Yes, I do live where iris borers are (Michigan). I'll just check them
daily and clip off dead leaves as they die. As long as there are green
leaves, the plant is absorbing sun. Sound good?