Hi, Incorporating a few strips or small paddocks with mixtures of Chicory (Cichorium intybus), Plantain (Plantago major), and the herb Bennet (Geum urbanum) has shown some very promising results for anthelmintic use.  While I can't cite any scientific studies, fecal counts on a few mixed goat herds using this for some of their goats were much lower than for their goats w/out access. I am hoping to pursue this further myself.           Good Luck,  Karl

Some commonly available browse sources in silvopastures may also help with parasite control.  Oaks and black locust are examples of trees whose folliage contain significant concentrations of condensed tannins - reportedly an effective natural dewormer.