Whitefly? in the GH. Help!

I've had cabbage whitefly often under the cabbage mesh in the garden which fly in clouds but these critters are way different. They don't have visible wings and are not yet prolific enough to 'dandruff'. Maybe they're babies. I've ordered some sticky traps to see what is actually flying about, plan on using cautiously in case bees get clobbered. I'll try washing the plants, but they're not very big or strong yet, so can't do a water jet job on them. I'm being vigilant and rubbing the blighters off each leaf at the moment and as far as I can see they're only on pepper and chilli growing tips so far. I notice lots of dead ones on the soil of the one pot that I chemical sprayed so that's a start, but I'm reluctant to blanket bomb the whole lot with insecticide.
I'll not get a chance for a good greenhouse session for a couple of days so I'm snatching any time I can to go 'a rubbin'. Tedious.