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Table 8 Effect of the tested insecticides on chlorophyll a, b, carotene content, and total pigments of tomato leaves at different intervals of application

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

Treatments Chlorophyll (a) ± SD
(mg/g f.w.t)
Chlorophyll (b) ± SD
(mg/g f.w.)
Carotene content ± SD
(mg/g f.w.)
Total pigments ± SD
(mg/g f.w.)
Before spray
 Challenger 6.48 ± 0.29 4.50 ± 0.30 4.91 ± 0.82 15.89 ± 0.85
 Coragen 6.41 ± 0.13 4.64 ± 0.49 5.07 ± 1.10 16.11 ± 0.47
 Emperor 6.52 ± 0.43 4.69 ± 0.43 5.04 ± 0.32 16.26 ± 0.14
 Radiant 6.54 ± 0.43 4.58 ± 0.50 5.08 ± 2.51 16.20 ± 2.47
 Vapcomic 6.44 ± 0.38 4.75 ± 0.40 4.93 ± 0.64 16.11 ± 0.48
 Control 5.88 ± 0.12 4.69 ± 0.68 4.93 ± 0.88 15.49 ± 0.62
 LSD0.05 NS NS NS NS
After 1 day of application
 Challenger 6.70 ± 0.20a 4.61 ± 0.27 5.31 ± 0.87 16.63 ± 0.99a
 Coragen 6.78 ± 0.07a 4.85 ± 0.18 5.31 ± 0.67 16.94 ± 0.59a
 Emperor 6.91 ± 0.48a 4.83 ± 0.44 5.12 ± 0.45 16.86 ± 0.48a
 Radiant 6.79 ± 0.18a 4.71 ± 0.26 5.28 ± 0.25 16.78 ± 0.25a
 Vapcomic 6.74 ± 0.06a 4.86 ± 0.25 5.13 ± 0.18 16.78 ± 0.27a
 Control 5.62 ± 0.02b 4.38 ± 0.35 4.41 ± 0.46 14.42 ± 0.46b
 LSD0.05 0.41 NS Ns 0.91
After 3 days of application
 Challenger 7.61 ± 0.29c 5.20 ± 0.64 5.37 ± 0.62 17.23 ± 0.19c
 Coragen 8.20 ± 0.09ab 4.93 ± 0.60 5.45 ± 0.66 18.57 ± 0.23ab
 Emperor 8.42 ± 0.20a 4.95 ± 0.07 5.45 ± 0.56 18.81 ± 0.73a
 Radiant 7.89 ± 0.28bc 4.70 ± 0.75 5.25 ± 0.44 17.84 ± 0.20bc
 Vapcomic 7.93 ± 0.19bc 4.91 ± 0.23 5.21 ± 0.15 17.86 ± 0.36bc
 Control 5.67 ± 0.15d 4.36 ± 0.37 4.42 ± 0.39 14.45 ± 0.45d
 LSD0.05 0.39 NS NS 0.85
After 5 days of application
 Challenger 7.98 ± 0.17b 5.88 ± 0.62a 5.70 ± 0.94a 19.56 ± 0.70b
 Coragen 8.58 ± 0.16a 6.40 ± 0.49a 6.12 ± 0.36a 21.09 ± 024a
 Emperor 8.72 ± 0.07a 6.41 ± 0.87a 6.19 ± 0.85a 21.33 ± 0.13a
 Radiant 8.15 ± 0.07b 6.10 ± 0.40a 5.86 ± 0.43a 20.10 ± 0.23b
 Vapcomic 8.15 ± 0.12b 6.17 ± 0.49a 5.87 ± 0.52a 20.17 ± 0.36b
 Control 5.44 ± 0.34c 4.45 ± 0.44b 4.19 ± 0.24b 14.07 ± 0.16c
 LSD0.05 0.32 1.02 1.09 0.63
After 7 days of application
 Challenger 8.51 ± 0.30c 6.07 ± 0.60a 5.95 ± 0.67a 20.53 ± 0.75c
 Coragen 9.18 ± 0.07ab 6.75 ± 0.40a 6.30 ± 0.24a 22.23 ± 0.39ab
 Emperor 9.44 ± 0.30a 6.85 ± 0.86a 6.34 ± 0.70a 22.6 3 ± 0.15a
 Radiant 8.84 ± 0.26bc 6.29 ± 0.60a 6.12 ± 0.90a 21.25 ± 0.72bc
 Vapcomic 8.94 ± 0.41abc 6.25 ± 0.92a 6.07 ± 0.77a 21.26 ± 0.55bc
 Control 5.45 ± 0.33d 4.32 ± 0.33b 4.24 ± 0.75b 14.00 ± 0.77d
 LSD0.05 0.53 1.17 1.25 1.07
  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