Scale insects on maples

[Frank97]

Good morning
I've discovered some scale insects on one of my Japanese maples the other day, could anyone recommend a good way to eliminate them, ie which sprays are most effective and easily available.

[TonyV]

You need to select one with Pyrethrum in it

[Frank97]

Thanks Tony, I've just found some Provado Ultimate Bug Killer in the shed that says it will kill scale insects, if it doesn't do the trick I'll look for something with Pyrethrum in.

[TonyV]

then you need tar wash oil in December

[Frank97]

Cheers I'll check that out.