I have this issue too plus the ants !
unfortunetly the ants stop the ladybirds doing their stuff
I am hoping the tits will help out
I may have to resort to soapy water if I am to get a good crop this year and next . I am planting a lot more black current as they are so easy to propergate and to spread them round the garden so their leaves can help the soil. too.
David
Living in Anjou , France,
For the many not for the few
http://www.permies.com/t/80/31583/projects/Permie-Pennies-France#330873