DE will not deworm your birds. The products previously mentioned will take care of most worms chickens gets.
×2
Safeguard is the way to go. I know holistic is important, but for the health of your girls, I would consider it. ♡ The dose is teeny tiny and it shouldn't get in her eggs (according to "how it works").
DE has little effect on parasites, either internal or external. :/ At least, that has been the experience I have most heard.
MrsB