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

Çağlayan, Ayşegül; Atay, Turgut; Kepenekci, İlker

doi:10.1186/s41938-021-00436-z

Egyptian Journal of Biological Pest Control

Table 4 Mortality rates of Hypera postica adults exposed to Steinernema carpocapsae (Black sea isolate), S. feltiae (isolate 09-31), and S. carpocapsae Tokat-Ulas and controls over 120 h from treatment

From: 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

Mortality ± SEM*(%)
HAT**	*Steinernema carpocapsae* (Black sea isolate)				*S. feltiae* (isolate 09-31)
HAT**	500 IJs	1000	2000	Control	500 IJs	1000	2000	Control
32	1.3 ± 1.6b***	31.1 ± 3.3a	54.3 ± 2.5a	0.0 ± 0.0b	6.3 ± 5.4ab¹	26.6 ± 2.4a	25.3 ± 0.4a	0.0 ± 0.0b
40	11.3 ± 4.5b	57.8 ± 1.6a	72.2 ± 1.0a	0.0 ± 0.0c	9.4 ± 5.2ab	31.4 ± 2.9a	31.0 ± 0.5a	0.0 ± 0.0b
48	53.0 ± 5.1a	83.0 ± 5.5a	85.4 ± 3.3a	0.0 ± 0.0b	19.0 ± 6.1ab	39.3 ± 1.3a	52.3 ± 4.3a	0.0 ± 0.0b
56	71.2 ± 2.9a	88.9 ± 5.7a	93.1 ± 2.1a	0.0 ± 0.0b	23.7 ± 5.1a	44.5 ± 2.1a	63.9 ± 3.1a	0.0 ± 0.0b
64	78.6 ± 4.0a	90.6 ± 5.2a	93.1 ± 2.1a	0.0 ± 0.0b	23.7 ± 5.1b	47.2 ± 1.8ab	66.7 ± 2.7a	0.0 ± 0.0b
72	90.4 ± 4.0a	98.7 ± 1.6a	96.1 ± 2.1a	0.0 ± 0.0b	33.9 ± 3.7a	50.0 ± 1.3a	66.7 ± 2.7a	0.0 ± 0.0b
80	90.4 ± 4.0a	98.7 ± 1.6a	96.1 ± 2.1a	0.0 ± 0.0b	42.0 ± 2.0a	50.0 ± 1.3a	66.7 ± 2.7a	0.0 ± 0.0b
88	90.4 ± 4.0a	98.7 ± 1.6a	98.3 ± 1.8a	0.0 ± 0.0b	47.8 ± 4.7a	50.0 ± 1.3a	69.6 ± 2.8a	0.0 ± 0.0b
96	92.0 ± 3.5a	98.7 ± 1.6a	98.3 ± 1.8a	0.0 ± 0.0b	53.3 ± 4.6a	55.3 ± 0.8a	80.2 ± 1.8a	0.0 ± 0.0b
104	92.0 ± 3.5a	98.7 ± 1.6a	98.3 ± 1.8a	0.0 ± 0.0b	66.1 ± 3.7a	63.7 ± 3.1a	85.2 ± 2.8a	0.0 ± 0.0b
112	92.0 ± 3.5a	98.7 ± 1.6a	98.3 ± 1.8a	0.0 ± 0.0b	66.1 ± 3.7a	66.1 ± 2.8a	89.6 ± 3.5a	0.0 ± 0.0b
120	93.4 ± 2.8a	98.7 ± 1.6a	98.3 ± 1.8a	0.0 ± 0.0b	66.1 ± 3.7a	66.1 ± 2.8a	89.6 ± 3.5a	0.0 ± 0.0b
	*S. carpocapsae* Tokat-Ulas
	500 IJs		1000		2000		Control
32	16.9 ± 10.2ab		26.1 ± 5.17ab		52.8 ± 8.2a		0.0 ± 0.0b
40	36.8 ± 6.8a		33.4 ± 5.54a		76.3 ± 4.2a		0.0 ± 0.0b
48	61.0 ± 9.9a		76.3 ± 4.21a		88.7 ± 3.5a		0.0 ± 0.0b
56	83.4 ± 7.2a		88.6 ± 3.09a		93.4 ± 2.8a		0.0 ± 0.0b
64	85.4 ± 6.9a		91.8 ± 2.00a		93.4 ± 2.8a		0.0 ± 0.0b
72	85.4 ± 6.9a		97.0 ± 2.00a		97.0 ± 2.0a		0.0 ± 0.0b
80	90.6 ± 5.2a		98.7 ± 1.60a		98.7 ± 1.6a		0.0 ± 0.0b
88	92.3 ± 6.1a		98.7 ± 1.60a		98.7 ± 1.6a		0.0 ± 0.0b
96	93.7 ± 5.5a		100.0 ± 0.0a		100.0 ± 0.0a		0.0 ± 0.0b
104	95.0 ± 3.9a		100.0 ± 0.0a		100.0 ± 0.0a		0.0 ± 0.0b
112	95.0 ± 3.9a		100.0 ± 0.0a		100.0 ± 0.0a		0.0 ± 0.0b
120	95.0 ± 3.9a		100.0 ± 0.0a		100.0 ± 0.0a		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)

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