Efficacy of some native entomopathogenic nematodes against the alfalfa weevil, Hypera postica (Gyllenhal) (Coleoptera: Curculionidae), and the lucerne beetle, Gonioctena fornicata (Brüggemann) (Coleoptera: Chrysomelidae), adults under laboratory conditions

Egyptian Journal of Biological Pest Control

Table 5 Mortality rates of Hypera postica adults exposed to Heterorhabditis bacteriophora (isolate 09-43) and H. bacteriophora Tokat-Songut and controls over 120 h from treatment

Mortality ± SEM*(%)
HAT**	*Heterorhabditis bacteriophora* (isolate 09-43)				H. *bacteriophora* Tokat-Songut
HAT**	500 IJs	1000	2000	Control	500 IJs	1000	2000	Control
32	0.0 ± 0.0a^***	0.0 ± 0.0a	0.6 ± 1.3a	0.0 ± 0.0a	0.0 ± 0.0	0.00 ± 0.0	0.0 ± 0.0	0.0 ± 0.0
40	0.0 ± 0.0a	0.0 ± 0.0a	1.3 ± 2.7a	0.0 ± 0.0a	0.0 ± 0.0a¹	0.00 ± 0.0a	1.7 ± 1.8a	0.0 ± 0.0a
48	0.0 ± 0.0a	0.0 ± 0.0a	1.3 ± 2.7a	0.0 ± 0.0a	0.3 ± 0.9a	0.4 ± 1.1a	1.7 ± 1.8a	0.0 ± 0.0a
56	0.0 ± 0.0a	1.7 ± 1.8a	5.1 ± 4.2a	0.0 ± 0.0a	0.3 ± 0.9ab	0.4 ± 1.1ab	8.5 ± 2.9a	0.0 ± 0.0b
64	0.0 ± 0.0a	1.7 ± 1.8a	5.1 ± 4.2a	0.0 ± 0.0a	0.7 ± 2.0ab	1.7 ± 1.8ab	12.6 ± 2.4a	0.0 ± 0.0b
72	0.0 ± 0.0b	6.9 ± 2.1ab	9.0 ± 4.0a	0.0 ± 00ab	2.0 ± 2.6ab	1.7 ± 1.8ab	12.6 ± 2.4a	0.0 ± 0.0b
80	0.0 ± 0.0b	6.9 ± 2.1ab	16.4 ± 4.4a	0.0 ± 0.0b	4.0 ± 2.8ab	6.9 ± 2.1ab	19.8 ± 1.8a	0.0 ± 0.0b
88	3.0 ± 2.0ab	6.9 ± 2.1ab	16.4 ± 4.4a	0.0 ± 0.0b	4.0 ± 2.8ab	10.6 ± 1.8a	19.8 ± 1.8a	0.0 ± 0.0b
96	3.0 ± 2.0ab	6.9 ± 2.1ab	22.5 ± 3.0a	0.0 ± 0.0b	4.0 ± 2.8ab	12.6 ± 2.4a	19.8 ± 1.8a	0.0 ± 0.0b
104	8.0 ± 3.5ab	10.6 ± 1.8ab	22.5 ± 3.0a	0.0 ± 0.0b	6.6 ± 2.8bc	17.3 ± 1.5ab	30.7 ± 1.0a	0.0 ± 0.0c
112	8.0 ± 3.5ab	17.3 ± 1.5a	22.5 ± 3.0a	0.0 ± 0.0b	7.9 ± 3.8bc	17.3 ± 1.5ab	33.6 ± 0.9a	0.0 ± 0.0c
120	11.4 ± 3.1a	22.6 ± 0.3a	25.6 ± 3.2a	0.0 ± 0.0b	13.1 ± 4.8a	17.3 ± 1.5a	36.7 ± 0.8a	0.0 ± 0.0b

*SEM: standard error of the mean
**HAT: hours after treatment
***Means in a line followed by the same letter are not statistical significantly different (ANOVA P < 0.05, Tukey’s test)