title: Activity of gel and paste formulations of dichlorvos against first instars of Gasterophilus spp.
mesh_terms: D000284:Administration, Oral; D000818:Animals; D004006:Dichlorvos / Q000008:administration & dosage* / Q000494:pharmacology / Q000627:therapeutic use; D004175:Diptera / Q000187:drug effects; D005782:Gels; D006734:Horse Diseases / Q000188:drug therapy*; D006736:Horses; D007814:Larva / Q000187:drug effects; D009198:Myiasis / Q000188:drug therapy / Q000662:veterinary*
chemical_list: D005782:Gels; D004006:Dichlorvos