Adults are abundant, and commonly mating, on our citrus trees at the moment, having first arrived for the season in late December, as far as I can recall. This was my second session of pulling the adults off the trees and drowning them, but judging by what I think are empty egg shells, I haven't been doing this often enough to prevent them breeding, and I'll have to be going after the orange nymphs next (the younger instars are green and usually manage to elude me).