Insecticidal effect of entomopathogenic nematodes and the cell-free supernatants from their symbiotic bacteria against different larval instars of Agrotis segetum (Denis & Schiffermüller) (Lepidoptera: Noctuidae)

Egyptian Journal of Biological Pest Control

Table 2 ANOVA parameters for the main effects and associated interactions for the mortality levels of 3rd and 4th instar larvae of Agrotis segetum

Sources	df	F-value	P-value
Nematode species (N)	2	5.392	0.007
Concentration (C)	2	240.486	< 0.001
Larval stage (L)	1	221.405	< 0.001
N*C	4	0.993	0.419
N*L	2	38.932	< 0.001
C*L	2	3.622	0.033
NCL	4	0.845	0.503
Error 1	54
Exposure time (t)	2	2661.161	< 0.001
t*N	4	15.214	< 0.001
t*C	4	25.661	< 0.001
t*L	2	53.375	< 0.001
tNC	8	1.085	0.379
tNL	4	14.911	< 0.001
tCL	4	4.089	0.004
tNC*L	8	1.665	0.115
Error 2	108