Kat, diatomaceous earth is not likely to have much effect in controlling earwigs. Traps are your best bet. (those newspapers, or boards, etc.) They like dark, moist places and love mulch and compost - and especially love leaf mold - so they can be a real problem. You probably have a different species than we have here, but the earwigs common to this area tend not to chew on leaves - they can wreak havoc to blooms - nothing is supposed to bother daffodils and narcissis, but some years they absolutely ravage mine.
I didn't have much of a problem with them for years, but apparently got an infestation with a dump truck load of compost I had brought in one year. I've had problems every since, though some years are worse than others. Trapping them and dumping them in a bucket of soapy water does seem to help control them some. I have also tried raking off all the mulch, letting the top layer of soil dry out some, and then replacing with new mulch, with some success.
Bobert, I saw my first japanese beetle this morning on daisy fleabane growing along the road.
Stilly - I'll send cultivation info. when I send you the poppy seeds. Where you live, you will want to strew some of them late this fall, and more in late winter for extended bloom. Want any rose campion seeds? I have white and magenta.