Tomatos - Little white flies

[Peatie]

I moved my tomato plants that I have reared from seed into larger (ex-florist) pots.
Went back next evening and lots of small white flies take off when the plants are disturbed.
There was no sign of these flies when I potted them on, and they have been reared in the same place (greenhouse).
What are they - Should I worry - Should I do something - What
Pete (beginner)

[Millie]

I have no idea, just Google too much, but are these the blighters?

http://www.greengardener.co.uk/whitefly.htm

[Millymollymandy]

Definitely whitefly which is a real nuisance in the greenhouse. It's impossible to eradicate them even with chemicals but should be a bit better once you move your tomatoes outside.

[multiveg]

Although not mentioned for whitefly, Bob Flowerdew said on Gardeners Question Time (latest programme available to listen again on the bbc radio 4 website) something about using cardboard covered in honey to trap flea beetles? Perhaps you could wave a cardboard around when you disturb the whitefly in hope of catching some?

[Wombat]

G'Day Peatie,

When you plant 'em out try planting tagetes marigolds or nasturtiams as a companion plant to attract them away or garlic, thyme, oregano as a repellent. Or soap spray may also repell 'em or kill the little buggers with a pyrethrum spray.

Nev