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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

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** Heterorhabditis bacteriophora (isolate 09-43) H. bacteriophora Tokat-Songut
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
  1. *SEM: standard error of the mean
  2. **HAT: hours after treatment
  3. ***Means in a line followed by the same letter are not statistical significantly different (ANOVA P < 0.05, Tukey’s test)