Insecticidal effect of entomopathogenic nematodes and the cell-free supernatants from their symbiotic bacteria against different larval instars of Agrotis segetum (Denis & Schiffermüller) (Lepidoptera: Noctuidae)

Egyptian Journal of Biological Pest Control

Table 7 The oral effect of supernatants of symbiotic bacteria of different entomopathogenic on the mortality (%) of different larval instars of Agrotis segetum for 1, 2 and 3-day post application under laboratory conditions (25 ± 1 °C, R.H. 60%)

*ÜTP-5: Xenorhabdus bovienii, MÇB-8: X. bovienii, AVB-15: Photorhabdus luminescens subsp. kayaii
*L3: Third larval instar of Agrotis segetum; L4: Fourth larval instar of A. segetum
^aDifferent capital letters show statistically significant differences among exposure times for each cell-free supernatant of EPN (Tukey, P ≤ 0.05)
^bDifferent lowercase letters show statistically significant differences among cell-free supernatant of EPN isolates for each exposure time (Tukey, P ≤ 0.05)
^cDifferent italic uppercase letters show statistically significant differences between 3rd and 4th larval stages for each cell-free supernatant of EPN (Tukey, P ≤ 0.05)