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Table 2 Life cycle of spotted bollworm (Earias vitella) on locally developed synthetic diet for laboratory bioassay

From: Genetic improvement of Bacillus thuringiensis against the cotton bollworm, Earias vitella (Fab.) (Lepidoptera: Noctuidae), to improve the cotton yield in Pakistan

Stage of larvaeDays and percentage
Egg stage 
 Egg hatching time6–7 days
 Egg hatching90%
Larval stage 
 Survival rate of neonatal larvae80%
 Survival rate of second and four instar larvae98%
 Time period (neonatal to four instar)18 days
Pupal stage 
 Pupation after four instar95%
 Time period (pupa to moth)5–9 days
Adult stage (moth) 
 Moth emergence rate80%
 Longevity5–8 days