Pathogenicity of Heterorhabditis indica against developmental stages of Eudocima materna L. (Lepidoptera, Erebidae)

Egyptian Journal of Biological Pest Control

Table 1 The calculated LC₅₀ and LC₉₀ values (IJs larva⁻¹ or pupa⁻¹) for Heterorhabditis indica on Eudocima materna larvae and pupae in the laboratory bioassays

Larval instar/pupa	LC₅₀ (95% CL)^a	LC₉₀ (95% CL)^a	Slope ± SE^b	Intercept ± SE^b	χ^2c	P value^d
3rd	14.43	59.56	2.08 ± 0.62	− 2.41 ± 0.92	0.47	0.03
3rd	(6.36–32.72)	(26.26–135.04)
4th	17.08	80.44	1.90 ± 0.55	− 2.34 ± 0.85	0.76	0.02
4th	(7.36–39.65)	(34.65–186.73)
5th	23.63	106.52	1.96 ± 0.53	− 2.69 ± 0.84	0.64	0.02
5th	(10.73–52.04)	(48.37–234.59)
Pupa	85.91	617.54	1.49 ± 0.47	− 2.89 ± 0.85	0.37	0.03
Pupa	(32.99–223.75)	(237.12–1608.25)

^aConcentrations are expressed in IJs/larva; ^bSE, standard error; ^cχ² of the slope; ^dp values represent the probability of the slope