Scale insect infestation on a tree? how can i get rid of an infestation of degree insects on...

how can i get rid of an infestation of degree insects on a large lime tree? They are adjectives the way up the tree and move out a secretion which looks like snail trail but isn't, on closer nouns it is dry and whispy, a little close to cobweb but smooth. t hanks
Answers:    'Unfortunately you hold spotted to late but you can still try this method to catch rid of them Paint the base up to 6ft soaring with a 1in 5 solution of Jeye's Fluid and consequently at about 4ft up from remains wrap a piece of material soaked it duplicate solution of Jeye's this may not get rid of the present infestation but will prevent any further attack.
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