Can dementors actually be killed?

[bdclark0423]

No: HPFGUIDX 182418

--- In HPforGrownups at yahoogroups.com, "k12listmomma" 
<k12listmomma at ...> wrote:
>
> <snip>
> It seems to me that if the Dementors could attack Dudley and 
attempt to kill 
> him (well, to be more accurate, suck out his soul), then a large 
amount of 
> Dementors still in existence would mean a continued threat for all 
Muggles, 
> even after Voldemort had died for good. Wizards would have a way 
of 
> protecting themselves, but the Muggles would be totally helpless. 
What would 
> stop the Dementors from just using Muggles as a new, unlimited 
food source?
> 
> Shelley
>

bdclark0423:
It was actually this post that made me think of the Star Trek 
TNG `Time's Arrow' episode.  The aliens had a portal where they 
would go to a point in a race's civilization where a widely spread 
epidemic was prevalent.  Sickness and disease would only augment the 
depression/despair, and basically be a feeding ground.

bdclark0423