I used to have a lot of half-eaten fruit, too. You might want to try mulching
around the plants with coffee grounds - I originally did it for slugs, but it
seems that a lot of critters do not like them. I've even had fruit that touches
the grounds/soil that survives being eaten, and that was always the end of any
fruit in the past. Just don't get the grounds on the strawberry leaves - they
will get black spots and eventually die.
In matters of truth and justice,
there is no difference between large and small problems,
for issues concerning the treatment of people are all the same.
- Albert Einstein