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 1 Mortality rates of Gonioctena fornicata 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)
	500 IJs	1000	2000	Control	500 IJs	1000	2000	Control
32	26.6 ± 2.4b^***	50.3 ± 4.7ab	60.5 ± 0.9a	0.0 ± 0.0c	15.0 ± 1.1a¹	15.4 ± 2.5a	33.7 ± 3.20a	0.0 ± 0.0b
40	55.3 ± 6.5b	68.7 ± 3.7ab	92.1 ± 3.8a	0.0 ± 0.0c	30.4 ± 2.8a	31.4 ± 3.7a	46.7 ± 3.76a	0.0 ± 0.0b
48	85.0 ± 4.3b	88.6 ± 3.1b	100.0 ± 0.0a	0.0 ± 0.0c	35.8 ± 3.6a	53.3 ± 4.6a	60.2 ± 1.38a	0.0 ± 0.0b
56	85.0 ± 4.3b	92.0 ± 3.5ab	100.0 ± 0.0a	0.0 ± 0.0c	45.4 ± 2.0a	61.0 ± 3.8a	76.1 ± 4.69a	0.0 ± 0.0b
64	90.3 ± 2.6b	96.0 ± 2.8ab	100.0 ± 0.0a	0.0 ± 0.0c	51.4 ± 1.5b	76.7 ± 6.0ab	92.0 ± 3.46a	0.0 ± 0.0c
72	93.4 ± 2.8b	97.0 ± 2.0ab	100.0 ± 0.0a	0.0 ± 0.0c	57.7 ± 2.3b	83.1 ± 5.0ab	94.7 ± 2.13a	0.0 ± 0.0c
80	98.0 ± 2.6a	97.0 ± 2.0a	100.0 ± 0.0a	0.0 ± 0.0b	57.7 ± 2.3b	83.1 ± 5.0ab	94.7 ± 2.13a	0.0 ± 0.0c
88	98.0 ± 2.6a	97.0 ± 2.0a	100.0 ± 0.0a	0.0 ± 0.0b	57.7 ± 2.3b	83.1 ± 5.0ab	94.7 ± 2.13a	0.0 ± 0.0c
96	98.0 ± 2.6a	99.7 ± 0.9a	100.0 ± 0.0a	0.0 ± 0.0b	77.9 ± 2.5a	85.2 ± 4.6a	94.7 ± 2.13a	0.0 ± 0.0b
104	98.0 ± 2.6a	99.7 ± 0.9a	100.0 ± 0.0a	0.0 ± 0.0b	82.7 ± 1.5a	88.6 ± 3.1a	94.7 ± 2.13a	0.0 ± 0.0b
112	98.0 ± 2.6a	99.7 ± 0.9a	100.0 ± 0.0a	0.0 ± 0.0b	91.5 ± 2.9a	94.7 ± 2.1a	94.7 ± 2.13a	0.0 ± 0.0b
120	99.3 ± 2.0a	99.7 ± 0.9a	100.0 ± 0.0a	0.0 ± 0.0b	91.5 ± 2.9a	97.0 ± 2.0a	97.0 ± 2.00a	0.0 ± 0.0b
	S. *carpocapsae* Tokat-Ulas
	500 IJs		1000		2000		Control
32	57.0 ± 0.9b		66.1 ± 2.8ab		88.6 ± 3.1a		0.0 ± 0.0c
40	85.8 ± 1.3a		84.6 ± 2.5a		97.0 ± 2.0a		0.0 ± 0.0b
48	94.7 ± 2.2a		97.0 ± 2.0a		100.0 ± 0.0a		0.0 ± 0.0b
56	97.6 ± 2.0a		97.0 ± 2.0a		100.0 ± 0.0a		0.0 ± 0.0b
64	99.4 ± 1.3a		98.7 ± 1.6a		100.0 ± 0.0a		0.0 ± 0.0b
72	99.4 ± 1.3a		98.7 ± 1.6a		100.0 ± 0.0a		0.0 ± 0.0b
80	99.4 ± 1.3a		98.7 ± 1.6a		100.0 ± 0.0a		0.0 ± 0.0b
88	100.0 ± 0.0a		100.0 ± 0.0a		100.0 ± 0.0a		0.0 ± 0.0b
120	100.0 ± 0.0a		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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