Table 3 Lethal time (LT₃₀, LT₅₀, and LT₉₀) values of treated isolates against adults of Gonioctena fornicata (hour)

Steinernema carpocapsae (Black sea isolate)

5.024 ± 0.376

29.584 (25.789–32.900)

37.621 (33.943–41.041)

67.688 (61.707–75.841)

1.39

S. feltiae (isolate 09-31)

4.060 ± 0.318

40.000 (35.517–43.952)

53.853 (49.528–58.083)

111.391 (100.005–128.141)

1.12

Heterorhabditis bacteriophora (isolate 09-43)

4.181 ± 0.383

58.684 (51.365–64.913)

78.331 (71.189–86.845)

158.650 (133.011–210.174)

1.96

H. bacteriophora Tokat-Songut

5.729 ± 0.424

37.263 (33.590–40.478)

46.006 (42.547–49.264)

77.002 (71.236–84.735)

1.21

S. carpocapsae Tokat-Ulas

5.999 ± 0.502

26.030 (23.358–28.372)

31.833 (29.295–34.212)

52.060 (48.186–57.158)

0.91