ABSTRACT
Biopesticides based upon entomopathogenic bacteria, fungi and insect viruses such as Nuclear Polyhedrosis Virus (NPV) have the potential to play an important role for the management of cotton bollworm/legume pod borer [Helicoverpa armigera (Hiibner)]. While there is significant research interest in protozoa and nematodes, these are not as yet sufficiently developed to have a clear role in H. armigera control. In addition, this chapter will also review the use of botanical pesticides in the control of H. armigera. Here, the definition of biopesticides includes the use of fungi, bacteria, viruses, protozoa and nematodes for the biological control of insect pests (Dent and Jenkins 2000). Natural plant products will cover all crude or refined extracts of any plant or part thereof.
