[EssexPete]

Hi All
For the last 2-3 years I've been wondering why many of my raspberries taste awful.
A clue was huge numbers of Dock Bugs (I'm fairly sure, but see pic).
The majority of berries seem to have a Dock Bug on them with lots of tiny dock bugs running around the berries too.
From what I've read they taste awful because of their droppings on my raspberries.
It's not very appetizing having foul tasting berries with bug droppings on them and i see that many berries are misshapen and damaged due to the bugs eating them.

What can I do to get rid of these bugs please, but still get some raspberries.

My raspberry patch is about 12ft long comprising 2 rows.