A hydrangea in a low maintenance part of the garden had its leaves eaten
by a bug last year. By the time we noticed the leaves were completely
gone. Not knowing how the plant would react we did not do much to it
over the winter.

Leaves reappeared patchily this year and now the bug is back. I have cut
up and burnt the affected parts and visit regular to squash bugs as they
appear.

Lots of questions:
What is it?
Should I abandon my usual reluctance to use pesticide?
If so which pesticide?
Is it likely to spread to other plants?

There are some pictures he
http://www.mrtlfrm.demon.co.uk/garden/
--
Ellis Morgan