VPA 221: Veterinary Entomology and Acarology (1+1)

CONTROL - OX WARBLE FLIES

• Mechanical removal of the larvae – can be done when the larvae is mature
• However attempts to squeeze out the larvae may rupture it which in turn results in localised swelling and abscess formation
• Insecticides can be used – Ivermectin at 0.2mg/kg BW S/C is effective,  Organophosphorus has also been given parentrally or dermally 
• Caution is required while using insecticide, since the death of the larvae in oesophageal region could have detrimental effects
• Dry dressing could be applied to the warble especially to clog the pores which results in the death of the mature larvae