Blackfly on my Acer - is Ladybird Larvae a good solution?
Hello I have an Acer in my back garden that is pretty infested with black fly at the moment and I wondered if the solution might be a ladybird larvae product the like of which I can purchase from RHS store? It says there are 100 larvae per packet and that ‘a general guideline is to use 3-5 ladybird larvae per infested plant’ but I’m wondering how many I would use for an Acer tree and if it’s not all of them, what should I do with the rest of the larvae?
Just seeking advice as I have not done this before. I vave attached a photo of the tree and a photo example of what most of the leaves look like when I stand underneath, if this helps?
(I live in Coleraine, Northern Ireland)
Appreciate any steer you can give me, thanks!