Just started to cut back some of our overgrown bushes (been out of action for a bit after foot op) and 2 quite large bushes, possibly hebes have been eaten badly away. Leaves are all dead, shrivelled and got holes. Looks like some tiny black caterpillars all over it. Whats best way to deal with it. Should I cut it right down and get rid of all the contamination.
Thnx

Cut out any dead wood.  Cut out down to the base of the shrub up to 1/3 of the branches, but cut only the oldest (biggest) ones.  Shorten the rest if you need too.  Spray with a bug killer.  Feed and water the plant well for the rest of the Summer.  Hope for the best!  If the shrub is still alive it should start to show some new growth in a 3-4 weeks.

Are you sure they are hebes?   Hebes tend to stay rather compact without any intervention.  If they are Hebes, they they don't respond well to heavy pruning, so go easy.  If there are some leaves that have escaped the caterpillars perhaps your local garden centre can identify the shrubs for you.  They may also be able to tell you if the shrubs have been attacked by a fungus as well as insects. 

Thanks, will try that. O think they are hebe. we had some at our last house that looked like it. They are very mature,about4' high  and very dense. Never had a problem before though :(