scale insects

I have just discovered that my lovely vine is covered in scale insects. I am familiar with the small furry white things found at the base of most ficus leaves but this little bugger is a new one on me - Parthenolecanium corni - an armoured brown structure which resembles part of the plant stem - very crafty. Have no fear - the answer lies not in a Liberal Democrat Alliance but in Horticultural Oil. Watch this space!