China Aster (Callistephus chinensis)

Caterpillars (Helicoverpa armigera)

Symptoms

  • Create irregular holes on leaves and flowers.
  • Slows the growth and in some times completely kills young plants.

Management

  • Remove larvae seen on the leaf.
  • Remove and destroy infected leaves.
  • Spray Bacillus thuringiensis formulations to kill the larvae.
  • Spray neem garlic emulsion (20 ml neem oil + 20 gram garlic paste + 5 gram bar soap/litre of water).