U_Stormcrow
Crossing the Road
^ that's the highlights.I use DE for millipedes and it works great as long as it is dry. The package information says not to breath it in as it will cause respiratory issues and do not use it in wet or damp places because it doesn't work when wet.
From this I have assumed that if its bad for me to breath it's probably bad for the chicken to breath also. If it doesn't work when wet, then feeding it to the chickens for worms probably won't work either since their insides are wet and damp. I don't know this for sure but I don't personally use DE on or around my chickens based on the package cautions.
On the other hand, some folks swear by it ......
I use it on horizontal surfaces in my (very dry, not disturbed) barn to control creepy crawlies, by placing it where they are likely to form paths and causeways. I can lay a broad path of the stuff at full concentration, and ensure broad exposure. Helps keep ants, roaches, beetles, etc to a rare few.
Its also effective* against mice.
* How??? I see their feet prints, and know to set out new glue traps!