>>8881533Either it was a censored Japanese translation or something, or you're just another one of the hundreds of victims of exaggerated bullshit Pokedex entries.
The closest entry is Crystal, which says that EVENTUALLY, the bug host will die, and then the mushroom simply lays spores on the eggs, which yields Paras.
Almost all the entries explicitly state that the mushrooms are in complete control though.
So Parasect is dying, not dead.