On 27/02/2013 22:54, Jeff Layman wrote:
On 27/02/2013 14:00, Spider wrote:
On 27/02/2013 13:25, David.WE.Roberts wrote:
We have two lemon trees indoors by the bi-folds.

They are doing well apart from the aphids.

From recent Googling the biological controls are not available yet this
year.

Spraying advice doesn't seem to include Citrus in the UK.

Any recommendations?
More importantly, anything NOT to use?

They can be considered ornamental at the moment because they are showing
no sign of flowering.

Cheers

Dave R



Bayer seem to have the answer:-

http://www.bayeradvanced.com/insects...stions-answers


I have never used this chemical, so this is not a recommendation, but
hope it helps.

You've never used imidacloprid (Provado)? It's the active ingredient in
that product.




Indeed I have, Jeff, and recommended it to friends. However, I wasn't
aware it was safe for edibles or citrus (which I appreciate is an
edible, but may also be rendered sickly by some chemicals), so I was
erring on the side of caution. If you know it to be safe for both
citrus specifically and edibles generally, then Dave may be happy to use it.

--
Spider
from high ground in SE London
gardening on clay