Helicoverpa armigera nucleopolyhedrovirus (entomopathogen)

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Helicoverpa armigera killed by a nucleopolyhedrovirus (click on image to enlarge it)
Author(s): O.P. Sharma, NCIPM, New Delhi. India
Source: IPM Images

Helicoverpa armigera nucleopolyhedrovirus (entomopathogen) (HearNPV)

The virus is a single nucleocapsid nucleopolyhedrovirus and causes a lethal disease of the old world cotton bollworm, Helicoverpa armigera. Some related Lepidoptera larvae can also become infected, but are less susceptible. The virus is commercially available. Compared to chemical insecticides, it has a slower speed of kill and older larvae are less susceptible. Attempts are under way to modify the virus using genetic engineering in order to overcome these disadvantages.

Vernacular names
• English: Helicoverpa armigera nucleopolyhedrovirus
HearNPV, HaSNPV, HaNPV
Heliothis armigera NPV