| identification of thiabendazole-resistant cyathostome species in louisiana. | a critical trial was performed with five ponies 6-9 months of age and raised on a horse farm with demonstrated benzimidazole-resistant cyathostomes. eleven species of cyathostomes were recovered, seven of which had resistance to thiabendazole. degrees of resistance varied among ponies and from species to species. resistant species were cyathostomum coronatum, cyathostomum catinatum, cylicostephanus minutus, cylicostephanus calicatus, cylicostephanus longibursatus, cylicostephanus goldi and cylic ... | 1991 | 1957489 |