I've got this problem too, and it's a really bad case now, getting progressively worse. 
What are cPickup entities exactly?
And why does the server just spawn them?
How will it affect the game/play/map if I "destroyentities"? Will crops or melons disappear, or ...

What are cPickup entities exactly?
And why does the server just spawn them?
How will it affect the game/play/map if I "destroyentities"? Will crops or melons disappear, or ...