Identification Symptoms

  • The eggs are laid on leaves. After hatching, the yellowish maggots bore the nearest vein of the leaf.
  • The maggot then reaches the main stem through petiole and bore down the stem.
  • If the infected stem is opened by splitting, distinct zig zag reddish tunnel can be seen with maggot or pupae inside it.
  • The maggots feed on cortical layers of the stem, may extend to tap root, killing of the plant.