Amazed how these traps can attract only the box tree moth, bought the first trap along with box tree caterpillars nematodes for a customer who has lots of box topiary that was getting attacked by the caterpillars, 3 weeks after application seems to be working with the affected areas showing fresh growth and 30 moths caught in the traps, we were that inpressed we decided to buy an additional trap and fitted it last Friday, can't wait to return this week to see how many more moths have been caught would definitely recommend the nematodes and the traps rather than using harsh chemicals, Geoff from The Lawn Cutter Garden Services.