Previous trials at [http://drupal.thedonkeysanctuary.org.uk/ the Donkey Sanctuary] suggest that resistance to the benzimidazole and pyrantel derivatives is developing. Recent trials have indicated that resistance to [[Macrocyclic Lactones|moxidectin]] may be developing. Future development in biological control using nematode-trapping fungi is being studied. | Previous trials at [http://drupal.thedonkeysanctuary.org.uk/ the Donkey Sanctuary] suggest that resistance to the benzimidazole and pyrantel derivatives is developing. Recent trials have indicated that resistance to [[Macrocyclic Lactones|moxidectin]] may be developing. Future development in biological control using nematode-trapping fungi is being studied. |