From: Characterization and field evaluation of tetrahedral and triangular nucleopolyhedrovirus of Spilosoma obliqua (SpobNPV) strain NBAIR1 against jute hairy caterpillar
Number of larvae used
LC50 OBs/mm2 (6th day)
Slope ± SE
Fiducial limits
χ2
DF
Lower
Upper
1st instar
220
2.93
0.81 ± 0.11
0.032
1.907
0.32
3
2nd instar
240
5.95
0.92 ± 0.13
2.283
11.205
1.20
3rd instar
300
6.73
0.96 ± 0.11
2.69
13.203
2.32