Q.2
For mass multiplication of DD-136 nematode, the common host used is
- Lesser wax moth (Galleria mellonella / Achroia grisella): The standard, highly efficient insect host used globally in insectaries for in vivo mass multiplication of the entomopathogenic nematode Steinernema carpocapsae (DD-136 strain). (Correct answer)
- Silk moth (Bombyx mori): Commercially domesticated for sericulture and mulberry silk fiber production, not utilized as a rearing medium for entomopathogenic nematodes.
- Fruit sucking moth (Eudocima spp.): Major orchard pest attacking citrus and pomegranate, not suited for mass culturing biocontrol agents.
- Codling moth (Cydia pomonella): Major temperate fruit pest of apples and pears, susceptible to biocontrol but not the standard mass production biofactory host.
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