diseases. the wound from tabanids is so severe the animal will continue to bleed after the flies have fed. Ticks are commonly thought of as insects, but are actually arachnids...Pest Management Information Pest Management HomeEquipmentProductsContact InfoServicesPest Management Information Insects; Pests of Cattle: Know the enemy in external parasite... of cattle. They may also feed around the horns where they attach to the skull. Horn flies remain on the cow night and day and only leave the animal to lay eggs in fresh manure...