No IGR does NOT disrupt dung beetles. I have sold a lot of it in mineral. I've been asked and checked it out thoroughly.
Residual insecticides, such as organophosphates, are toxic to beneficial insects, such as coprophagous flies and beetles, predaceous beetles, parasitic wasps and dung beetles. Altosid® IGR does not disrupt dung composition and does not harm beneficial insects.
Another source:
When it comes to horn fly infestations on cattle, the best results are going to come from a product designed specifically to control horn flies, Altosid® IGR.
www.altosidigr.com
- Protect Non-Target Species – Because Altosid® IGR was developed for horn flies, the product has no harmful effect on beneficial insects. While residual insecticides, such as organophosphates, are toxic to beneficial insects, such as coprophagous flies and beetles, predaceous beetles, parasitic wasps and dung beetles, Altosid® IGR does not harm these insects or disrupt dung composition.