Greenhouse Whitefly

[biggreenfingers]

has anyone used biological control for greenhouse whitefly and have any reviews they would like to share. I have seen 500 encarsia formosa wasps for £10.99 on a website but that seems a bit expensive as I am assuming that they have a very short shelf
life and have to be used within one season ?

[Two_Sheds]

I've used this with good effect (you need more than one spraying, but it does work)
on whitefly

[Thelma Sanders]

growing tagetes in the greenhouse stops them

[Tam]

I always make sure there are plenty of spiders in the greenhouse and the plants are always clean. Any spiders I see in the house are always transported thence.

[biggreenfingers]

I've used this with good effect (you need more than one spraying, but it does work)
on whitefly

Thanks, will have to give this a try this year.

[Potstubsdustbins]

Spiders and yellow sticky traps seem to work for me.

Colin

[hollychap]

where i work is swarmed with ladybirds so i will be rehoming a few this year