Isolation, identification and biocontrol potential of entomopathogenic nematodes occurring in Purvanchal and Bundelkhand regions of Uttar Pradesh, India

Egyptian Journal of Biological Pest Control

Table 4 The lethal concentration (LC₅₀ and LC₉₀) of Steinernema siamkayai (IIVR JNC01 strain) and Heterorhabditis indica (NBAIIH38 strain) against lepidopteran pests at 2 days after treatment and eggplant ash weevil (Myllocerus subfaciatus Guerin.) at 7 days after treatment

Lepidopteran insect pests	Entomopathogenic nematode species	LC₅₀	95% Fiducial limits	LC₉₀	95% Fiducial limits	Slope ± SE	χ2	P (< 0.05)
Spoladea recurvalis	Steinernema siamkayai (IIVR JNC01 strain)	60	42–81	385	221–1300	1.58 ± 0.32	24.15	< 0.0001
Spoladea recurvalis	Heterorhabditis indica (NBAIIH38 strain)	39	24–53	205	116–1244	1.78 ± 0.49	12.92	0.0003
Spodoptera litura	Steinernema siamkayai (IIVR JNC01 strain)	20	11–28	68	52–109	2.46 ± 0.53	21.59	< 0.0001
Spodoptera litura	Heterorhabditis indica (NBAIIH38 strain)	27	16–35	103	77–178	2.19 ± 0.42	26.97	< 0.0001
Spilosoma obliqua	Steinernema siamkayai (IIVR JNC01 strain)	19	10–26	55	43–84	2.83 ± 0.65	18.79	< 0.0001
Spilosoma obliqua	Heterorhabditis indica (NBAIIH38 strain)	20	11–25	43	35–65	3.83 ± 1.00	14.73	< 0.0001
Myllocerus subfaciatus	Steinernema siamkayai (IIVR JNC01 strain)	105.51	49.9–150.3	519.74	369.8–1482	1.85 ± 0.44	12.91	0.0003
Myllocerus subfaciatus	Heterorhabditis indica (NBAIIH38 strain)	95.04	–	335.9	–	2.33 ± 1.05	03.67	0.055