Will diatomaceous earth kill canine parasites in lawns?

Will D.E. kill parasitic worms and their larvae and eggs in lawns? My dog somehow caught lung worm in his environment. I want to kill any larvae or worms that may be in his environment.
And will it kill snails? Snails are carriers of this disease.
If not, what do you recommend for these?
Note: Looking for environment treatment, not looking for suggestions about internal treatment, especially conventional veterinary internal parasite treatment bcause he cannot take those medicines!!! By the way, I have read the forum about diatomaceous earth taken internally and there is no 'ultimate' conclusion about whether it is effective or not, especially for lung worm which does not stay in the intestinal tract, but travels to lungs and trachea.

Oh my I hate to know you're having to deal with this. I did a little research and couldn't find anything about DE killing parasites outside the body. We are lifetime farmsteaders or homesteader if you prefer and have used DE for many years for fllies, mites, fleas, ants, and internal worming. In the garden, it has helped us with slugs as much as bowls of beer. When we fail to replace the DE after a heavy dew or rain we see some, but as soon as we put it out again it starts cutting them out. Good luck. If I run across any other info, I'll be sure to share it with you.

Snails and slugs are the vector for lungworms in dogs. Your dog may have eaten these, or have licked slime trails or drank contaminated water. Thus your main goal may be to focus on drastically reducing the snail/ slug population. There are a variety of methods that people use......sluggo, beer traps, carpet traps, cabbage leaf tarps, hand picking while hunting by night using a torch(flashlight).

As for your dog, there is a preventative medication that can be used monthly to protect your dog. Your veterinarian can advise you about this. Yes, it's not "permie" but sometimes it's an alternative that makes sense for the situation. DE alone will not be the answer in this case, sorry.

Focusing upon snail/slug abatement may be a good route.

There are a variety of methods that people use......sluggo, beer traps, carpet traps, cabbage leaf tarps, hand picking while hunting by night using a torch(flashlight)...

And don't forget: coffee grounds.
Earth worms love coffee grounds.  Slugs/snails hate them.
A 1/2" layer will stop them from crossing the line, and a little rain wont make it useless as it will for DE.

Thank you for your responses. Please note that I wrote that I was not really looking for information about treating my dog, just the environment. My dog is not able to take the monthly anti-parasite treatment due to a health condition. I am going to try the D.E. and coffee grounds for the yard. My vet tells me that this is not just from snails, tho, and it can be in the environment and passed from feces.