If the banana is small and infested with leaf eating caterpillar, the infested leaves should be clipped off and destroyed as these caterpillars live in groups at the beginning. In case of we are late to see them and larvae scattered on the plant; spray Bacillus thuringiensis, a bacterial base powder @ 15 g or Bouveria bassiana, a fungus base powder @ 40 g per 10 lit of water during evening hours. The sticker should be added in this insecticidal solution before spray.