Question
Had 2 pups with Parvo virus, Does Bleach kill your grass?

Answer
Hi Lulu;
Yes it can, but the Parvo virus is much worse.
I would spray on the bleach and wait until it has time to kill the Parvo, the wash it off with a LOT of water.
Ask your Veterinarian how long the clorox has to stay on.
By the way, When the Parvo virus was first discovered , A&M Veterinary school ran tests with all brands of bleach, and the only one that killed the Parvo virus was Clorox.
If you read the labels on bleach bottles, there is quite a difference in the ingredients in leaches.
Charlotte