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Table 3 GPT activity (U/L) in haemolymph and fat body of the early 5th instar larvae of Rh. ferrugineus after 24-h treatment with LC50 and LC75 of the tested insecticidal compounds

From: Disturbance of phosphatase and transaminase activities in grubs of the red palm weevil Rhynchophorus ferrugineus (Coleoptera: Curculionidae) by certain insecticidal compounds

Conc. (ppm)

Haemolymph

Fat body

mean ± SD

Change %

mean ± SD

Change %

Pyriproxyfen

LC75 (2317.5)

53.33 ± 10.41 c

− 40.74

6.67 ± 1.33 c

− 53.9

LC50 (1067.5)

45.00 ± 8.66 c

− 50

11.90 ± 3.22 a

− 17.76

Neemazal

LC75 (27100)

848.33 ± 10.41 d

842.59

13.77 ± 1.20 a

− 4.84

LC50 (14600)

63.33 ± 10.41 b

− 29.63

10.24 ± 1.04 a

− 29.23

Spinetoram

LC75 (88.60)

43.33 ± 5.77 c

− 51.86

9.41 ± 0.99 b

− 34.97

LC50 (18.37)

658.33 ± 15.28 d

631.48

10.20 ± 1.63 a

− 29.51

Control

90.00 ± 8.66

–

14.47 ± 2.13

–

  1. Conc., a, b, c, d: see footnote of Table 1