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Blister beetle

Mylabris pustulata Thunberg and M. phalerata Pall is commonly known as blister beetle. It is a polyphagous insect pest damaging cotton, okra, cowpea and pigeon pea throughout the year. The adults are medium to large (2.5 cm in length), usually black with large yellow spots and a red band across the abdomen, which sometimes changes into yellow spots. Adults feed on the flowers and tender pods resulting in fewer pods. An adult betle can damage 20-30 flowers in a single day. The peak adult activity (August-October in southern India), most of the flowers may be eaten by the beetles and crop losses may be substantial.

Management of blister beetle 

• Spray acephate 75 SP @ 1g/L or Chlorpyriphos 20 EC 2.5 ml/l water or quinalphos 25 SP 2ml/L of water.