Are there more than one type of white fly.
I have a heavy infestation in my polytunnel of small white flies. They do not however fit in to the description often given. i.e. they do not all jump up in a cloud if i shake the leaves, they just sit there doing nothing!
Are these some other kind of pest - either way they're a right pain, I've never experienced such a heavy infestation as I've got this year - aphids and white fly.
Don't want to use chemicals, espically under cover where there is no rain, so am trying ladybird larvae, but the've got a lot of work to do if theyre going to make much of an impact.