Diatomaceous earth pros and cons for this for horses

[MBhorses]

Hey,

I have heard Diatomaceous earth works well for horses.Have anyone use this if so what are good and bad from using it.

Thanks Melissa

 

[disneyhorse]

Works well for what? Deworming? Flies?

In my experience, waste of time...

 

[rabbitsfizz]

Ditto, also waste of money!