"Doug Kanter" expounded:

Do earwigs tend to arrive in waves? If yes, will they be dissuaded to any
significant degree by being dislodged with spray from a watering wand or
whatever?

Dampness. I think the water would only encourage them. The best
thing for me to do is to make sure the mulch is fine, and there's no
debris laying around for them to hide under (in the moisture).
--
Ann, gardening in Zone 6a
South of Boston, Massachusetts
e-mail address is not checked
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