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Table 6 Effect of the tested insecticides on certain antioxidant enzymes of tomato plants

From: Comparative toxicity of new insecticides generations against tomato leafminer Tuta absoluta and their biochemical effects on tomato plants

Enzyme activity ± SD (U/g fresh weight/h) Insecticides Days after treatment
Before spray One Three Five Seven
Super oxide dismutase Challenger 582.00 ± 17.0 468.67 ± 29.7b 444.00 ± 24.0b 426.67 ± 29.7b 401.33 ± 5.7b
Coragen 595.0 ± 24.0 433.00 ± 7.10c 400.0 ± 28.3cd 362.0 ± 31.1c 345.0 ± 18.4d
Emperor 576.0 ± 39.6 412.20 ± 33.9c 379.0 ± 18.4d 359.0 ± 15.6c 336.0 ± 11.3d
Radiant 584.0 ± 25.5 468.00 ± 14.1b 458.0 ± 11.3b 410.0 ± 17.0b 380.0 ± 11.3c
Vapcomic 556.0 ± 11.3 426.00 ± 5.70c 417.0 ± 4.2c 401.0 ± 26.9b 384.0 ± 8.5c
Control 582.0 ± 20.0 554.00 ± 17.6a 562.0 ± 42.5a 582.0 ± 32.3a 588.0 ± 22.7a
LSD0.05 NS 24.72 22.19 32.15 16.41
Catalase Challenger 37.31 ± 2.63 29.87 ± 2.45b 25.84 ± 2.35b 19.59 ± 2.51b 19.19 ± 2.74b
Coragen 34.30 ± 0.79 24.50 ± 2.72c 18.51 ± 1.09c 14.70 ± 0.54c 13.61 ± 0.54d
Emperor 36.47 ± 1.63 23.41 ± 1.63c 16.33 ± 1.09c 14.15 ± 1.08c 11.43 ± 0.54d
Radiant 38.11 ± 1.09 28.31 ± 2.18c 25.04 ± 2.18b 19.60 ± 1.09b 16.33 ± 1.09bc
Vapcomic 37.56 ± 1.63 25.59 ± 2.65c 23.41 ± 2.72b 19.05 ± 1.64b 16.88 ± 1.63c
Control 37.02 ± 2.18 40.83 ± 0.77a 37.56 ± 0.77a 34.84 ± 3.08a 39.20 ± 1.54a
LSD0.05 NS 3.56 3.48 3.07 2.63
Polyphenol oxidase Challenger 41.65 ± 1.47 34.24 ± 10.3b 31.73 ± 22.4b 23.25 ± 1.7b 20.80 ± 6.8b
Coragen 46.80 ± 7.4 29.52 ± 0.6bc 22.08 ± 6.6b 13.52 ± 0.6c 9.12 ± 0.5c
Emperor 45.60 ± 7.0 27.76 ± 0.6c 21.12 ± 2.0b 10.32 ± 2.4c 8.48 ± 1.8c
Radiant 46.80 ± 1.5 34.64 ± 1.7b 28.56 ± 1.9b 20.08 ± 1.2b 11.12 ± 0.8c
Vapcomic 46.80 ± 5.5 32.32 ± 2.7bc 26.08 ± 0.9b 20.64 ± 7.0b 11.04 ± 1.6c
Control 42.72 ± 2.9 51.04 ± 1.6a 68.64 ± 1.1a 71.36 ± 5.7a 71.76 ± 7.8a
LSD0.05 NS 5.85 18.52 5.86 7.64
Glutathione-S-transferase Challenger 79.99 ± 5.1bc 63.74 ± 2.0b 58.61 ± 10.8b 54.12 ± 68b 50.24 ± 8.2b
Coragen 76.86 ± 2.2c 56.80 ± 1.3c 47.24 ± 0.7c 41.24 ± 3.0c 38.06 ± 0.2c
Emperor 76.86 ± 4.5c 50.99 ± 1.9d 45.55 ± 0.9c 40.12 ± 2.2c 37.49 ± 2.6c
Radiant 78.55 ± 4.7bc 62.43 ± 2.1b 52.49 ± 0.4bc 49.87 ± 1.9b 42.18 ± 2.1c
Vapcomic 83.99 ± 1.9b 56.05 ± 2.4c 52.30 ± 2.8bc 50.24 ± 2.2b 42.37 ± 1.9c
Control 93.73 ± 1.5a 93.73 ± 3.4a 110.79 ± 0.8a 112.48 ± 0.5a 114.92 ± 1.9a
LSD0.05 6.46 4.02 8.16 6.04 6.63
  1. L.S.D0.05 least significant difference at 0.05 level of probability; N.S not significant difference at 0.05 level of probability; Means accompanied by the same letter in a column are not significantly different at 0.05 level of probability