By Sylviaday
United Kingdom 
I planted a Laburnum tree last year and it now has blue aphids all over it. I s there a spray I can buy to get rid of them please?
17 Jul, 2017
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« Good afternoon folks. I'm asking for help again in identifying a plant. I've...
Probably black fly. Most 'systemic' insecticide sprays will deal with this. Many to choose from at your local supermarket or garden centre. Could try weak washing up liquid as a contact spray first as the tree is quite small.
17 Jul, 2017