Rice Science ›› 2019, Vol. 26 ›› Issue (3): 157-166.DOI: 10.1016/j.rsci.2019.04.002
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Matiar Rahaman Muhammad1(), Joseph Stout Michael2(
)
Received:
2018-02-17
Accepted:
2018-09-29
Online:
2019-05-28
Published:
2019-01-25
Matiar Rahaman Muhammad, Joseph Stout Michael. Comparative Efficacies of Next-Generation Insecticides Against Yellow Stem Borer and Their Effects on Natural Enemies in Rice Ecosystem[J]. Rice Science, 2019, 26(3): 157-166.
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Treatment | Insecticide name | Insecticide class | Formulated product (Active ingredient) | Manufacturer/Source |
---|---|---|---|---|
T1 | Carbufuran 5 G | Carbamate | 10.96 kg/hm2 (0.55 kg/hm2) | Masco Agro Chemicals |
T2 | Chlorantraniliprole 0.4% G | Anthranilic diamide | 10.96 kg/hm2 (0.55 kg/hm2) | Patrocom (BD) Ltd. |
T3 | Dinotefuran 20% SG | Neonicotinoid | 0.15 kg/hm2 (0.05 kg/hm2) | Indofil Industries Ltd. |
T4 | Methoxyfenozide 24% SC | Diacylhydrazine | 0.41 L/hm2 (0.10 kg/hm2) | Auto Crop Care Ltd. |
T5 | Quinalphos 25 EC | Organophosphate | 1.50 L/hm2 (0.38 kg/hm2) | Shadik Agrochemicals Company |
T6 | Untreated control | - | - | - |
Table 1 List of insecticides used in this study.
Treatment | Insecticide name | Insecticide class | Formulated product (Active ingredient) | Manufacturer/Source |
---|---|---|---|---|
T1 | Carbufuran 5 G | Carbamate | 10.96 kg/hm2 (0.55 kg/hm2) | Masco Agro Chemicals |
T2 | Chlorantraniliprole 0.4% G | Anthranilic diamide | 10.96 kg/hm2 (0.55 kg/hm2) | Patrocom (BD) Ltd. |
T3 | Dinotefuran 20% SG | Neonicotinoid | 0.15 kg/hm2 (0.05 kg/hm2) | Indofil Industries Ltd. |
T4 | Methoxyfenozide 24% SC | Diacylhydrazine | 0.41 L/hm2 (0.10 kg/hm2) | Auto Crop Care Ltd. |
T5 | Quinalphos 25 EC | Organophosphate | 1.50 L/hm2 (0.38 kg/hm2) | Shadik Agrochemicals Company |
T6 | Untreated control | - | - | - |
Category | Common name | Scientific name | Family | Order | |
---|---|---|---|---|---|
Predator | Lady bird beetle | Micraspis discolor | Coccinellidae | Coleoptera | |
Wolf spider | Lycosa pseudoannulata | Lycosidae | Araneae | ||
Carabid beetle | Ophionea indica | Carabidae | Coleoptera | ||
Earwig | Forticula auricularia | Forticulidae | Dermaptera | ||
Green mirid bug | Cyrtorhinus lividipennis | Miridae | Heteroptera | ||
Damsel fly | Agriocnemis pygmaea | Coenagrionidae | Odonata | ||
Parasitoid | Trichogramma japonicum | Trichogrammatidae | Hymeoptera | ||
Telenomus rowani | Scelionidae | Hymeoptera | |||
Tetrastichus schoenobii | Scelionidae | Hymeoptera |
Table 2 List of natural enemies recorded in rice field.
Category | Common name | Scientific name | Family | Order | |
---|---|---|---|---|---|
Predator | Lady bird beetle | Micraspis discolor | Coccinellidae | Coleoptera | |
Wolf spider | Lycosa pseudoannulata | Lycosidae | Araneae | ||
Carabid beetle | Ophionea indica | Carabidae | Coleoptera | ||
Earwig | Forticula auricularia | Forticulidae | Dermaptera | ||
Green mirid bug | Cyrtorhinus lividipennis | Miridae | Heteroptera | ||
Damsel fly | Agriocnemis pygmaea | Coenagrionidae | Odonata | ||
Parasitoid | Trichogramma japonicum | Trichogrammatidae | Hymeoptera | ||
Telenomus rowani | Scelionidae | Hymeoptera | |||
Tetrastichus schoenobii | Scelionidae | Hymeoptera |
Treatment | Deadheart in each plot (Mean ± SE, n = 3) | Reduction over control | ||||||
---|---|---|---|---|---|---|---|---|
1 DBS | 5 DAS | 10 DAS | 15 DAS | 5 DAS | 10 DAS | 15 DAS | ||
T1 | 4.06 ± 0.05 | 4.06 ± 0.31 b | 4.82 ± 0.09 b | 5.31 ± 0.09 b | 68.18 | 69.18 | 67.1 | |
T2 | 3.89 ± 0.13 | 2.02 ± 0.11 c | 2.84 ± 0.23 d | 3.45 ± 0.07 d | 84.16 | 81.84 | 78.62 | |
T3 | 3.55 ± 0.25 | 3.80 ± 0.02 b | 4.19 ± 0.10 c | 5.22 ± 0.17 b | 70.21 | 73.2 | 67.65 | |
T4 | 3.56 ± 0.16 | 2.65 ± 0.15 c | 3.81 ± 0.12 c | 4.18 ± 0.23 c | 79.23 | 75.63 | 74.1 | |
T5 | 3.33 ± 0.27 | 4.44 ± 0.08 b | 5.00 ± 0.27 b | 5.39 ± 0.19 b | 65.2 | 68.03 | 63.5 | |
T6 | 3.62 ± 0.18 | 12.76 ± 0.45 a | 15.64 ± 0.18 a | 16.14 ± 0.21 a | - | - | - | |
LSD0.05 | 0.606 | 0.823 | 0.527 | 0.427 | ||||
Level of significance | NS | ** | ** | ** | ||||
CV (%) | 9.05 | 9.13 | 4.78 | 3.34 | ||||
F-test | 1.857 | 226.267 | 812.29 | 1368.96 |
Table 3 Effect of insecticides on deadheart symptoms before and after the first spray (2014-2015).
Treatment | Deadheart in each plot (Mean ± SE, n = 3) | Reduction over control | ||||||
---|---|---|---|---|---|---|---|---|
1 DBS | 5 DAS | 10 DAS | 15 DAS | 5 DAS | 10 DAS | 15 DAS | ||
T1 | 4.06 ± 0.05 | 4.06 ± 0.31 b | 4.82 ± 0.09 b | 5.31 ± 0.09 b | 68.18 | 69.18 | 67.1 | |
T2 | 3.89 ± 0.13 | 2.02 ± 0.11 c | 2.84 ± 0.23 d | 3.45 ± 0.07 d | 84.16 | 81.84 | 78.62 | |
T3 | 3.55 ± 0.25 | 3.80 ± 0.02 b | 4.19 ± 0.10 c | 5.22 ± 0.17 b | 70.21 | 73.2 | 67.65 | |
T4 | 3.56 ± 0.16 | 2.65 ± 0.15 c | 3.81 ± 0.12 c | 4.18 ± 0.23 c | 79.23 | 75.63 | 74.1 | |
T5 | 3.33 ± 0.27 | 4.44 ± 0.08 b | 5.00 ± 0.27 b | 5.39 ± 0.19 b | 65.2 | 68.03 | 63.5 | |
T6 | 3.62 ± 0.18 | 12.76 ± 0.45 a | 15.64 ± 0.18 a | 16.14 ± 0.21 a | - | - | - | |
LSD0.05 | 0.606 | 0.823 | 0.527 | 0.427 | ||||
Level of significance | NS | ** | ** | ** | ||||
CV (%) | 9.05 | 9.13 | 4.78 | 3.34 | ||||
F-test | 1.857 | 226.267 | 812.29 | 1368.96 |
Treatment | Whitehead in each plot (Mean ± SE, n = 3) | Reduction over control (%) | |||||||
---|---|---|---|---|---|---|---|---|---|
1 DBS | 5 DAS | 10 DAS | 15 DAS | 5 DAS | 10 DAS | 15 DAS | |||
T1 | 1.73 ± 0.26 | 2.02 ± 0.14 c | 2.75 ± 0.09 b | 3.45 ± 0.18 bc | 85.36 | 81.76 | 77.69 | ||
T2 | 1.77 ± 0.23 | 0.98 ± 0.17 e | 1.23 ± 0.06 d | 2.22 ± 0.21 e | 92.89 | 91.94 | 85.64 | ||
T3 | 1.84 ± 0.15 | 1.56 ± 0.09 d | 2.00 ± 0.11 c | 2.92 ± 0.20 cd | 88.69 | 86.73 | 81.12 | ||
T4 | 1.64 ± 0.30 | 1.25 ± 0.16 de | 1.86 ± 0.06 c | 2.49 ± 0.15 de | 90.94 | 87.66 | 83.9 | ||
T5 | 1.72 ± 0.36 | 2.65 ± 0.05 b | 3.04 ± 0.23 b | 3.91 ± 0.08 b | 80.79 | 79.84 | 74.72 | ||
T6 | 1.86 ± 0.14 | 13.80 ± 0.16 a | 15.08 ± 0.17 a | 15.47 ± 0.38 a | - | - | - | ||
LSD0.05 | 0.841 | 0.33 | 0.354 | 0.632 | |||||
Level of significance | NS | ** | ** | ** | |||||
CV (%) | 26.25 | 4.93 | 4.49 | 6.85 | |||||
F-test | 0.091 | 2219.422 | 2239.03 | 651.32 |
Table 4 Effect of insecticides on whitehead symptoms before and after the second spray (2014-2015). %
Treatment | Whitehead in each plot (Mean ± SE, n = 3) | Reduction over control (%) | |||||||
---|---|---|---|---|---|---|---|---|---|
1 DBS | 5 DAS | 10 DAS | 15 DAS | 5 DAS | 10 DAS | 15 DAS | |||
T1 | 1.73 ± 0.26 | 2.02 ± 0.14 c | 2.75 ± 0.09 b | 3.45 ± 0.18 bc | 85.36 | 81.76 | 77.69 | ||
T2 | 1.77 ± 0.23 | 0.98 ± 0.17 e | 1.23 ± 0.06 d | 2.22 ± 0.21 e | 92.89 | 91.94 | 85.64 | ||
T3 | 1.84 ± 0.15 | 1.56 ± 0.09 d | 2.00 ± 0.11 c | 2.92 ± 0.20 cd | 88.69 | 86.73 | 81.12 | ||
T4 | 1.64 ± 0.30 | 1.25 ± 0.16 de | 1.86 ± 0.06 c | 2.49 ± 0.15 de | 90.94 | 87.66 | 83.9 | ||
T5 | 1.72 ± 0.36 | 2.65 ± 0.05 b | 3.04 ± 0.23 b | 3.91 ± 0.08 b | 80.79 | 79.84 | 74.72 | ||
T6 | 1.86 ± 0.14 | 13.80 ± 0.16 a | 15.08 ± 0.17 a | 15.47 ± 0.38 a | - | - | - | ||
LSD0.05 | 0.841 | 0.33 | 0.354 | 0.632 | |||||
Level of significance | NS | ** | ** | ** | |||||
CV (%) | 26.25 | 4.93 | 4.49 | 6.85 | |||||
F-test | 0.091 | 2219.422 | 2239.03 | 651.32 |
Fig. 1. Effects of insecticides (two applications) on rice yields. T1, Carbufuran 5 G; T2, Chlorantraniliprole 0.4% G; T3, Dinotefuran 20% SG; T4, Methoxyfenozide 24% SC; T5, Quinalphos 25 EC; T6, Untreated control.Data represent Mean ± SE (n = 3), and the same lowercase letters indicate no significant difference at the 0.05 level by the Duncan’s multiple range test.
Treatment | Dose | Filled grain (kg/m2) | Increased over control (kg/m2) | Adjusted increased yield (kg/hm2) | Market price | Benefit value (USD/hm2) | Cost (USD/hm2) | Rc |
---|---|---|---|---|---|---|---|---|
T1 | 10.96 kg/hm2 | 0.63 | 0.179 | 1 139.09 | 2.56 USD/kg | 364.5 | 28.05 | 12.99 |
T2 | 10.96 kg/hm2 | 0.78 | 0.329 | 2 093.63 | 4.67 USD/kg | 669.96 | 51.2 | 13.08 |
T3 | 0.15 kg/hm2 | 0.69 | 0.239 | 1 520.90 | 64.00 USD/kg | 486.69 | 9.6 | 50.69 |
T4 | 0.41 L/hm2 | 0.725 | 0.274 | 1 743.63 | 64.00 USD/L | 557.96 | 26.24 | 21.26 |
T5 | 1.50 L/hm2 | 0.6 | 0.149 | 948.18 | 15.36 USD/L | 303.41 | 23.04 | 13.16 |
T6 | - | 0.451 | - | - | - | - | - | - |
Table 5 Cost-benefit ratios (Rc) of five insecticides.
Treatment | Dose | Filled grain (kg/m2) | Increased over control (kg/m2) | Adjusted increased yield (kg/hm2) | Market price | Benefit value (USD/hm2) | Cost (USD/hm2) | Rc |
---|---|---|---|---|---|---|---|---|
T1 | 10.96 kg/hm2 | 0.63 | 0.179 | 1 139.09 | 2.56 USD/kg | 364.5 | 28.05 | 12.99 |
T2 | 10.96 kg/hm2 | 0.78 | 0.329 | 2 093.63 | 4.67 USD/kg | 669.96 | 51.2 | 13.08 |
T3 | 0.15 kg/hm2 | 0.69 | 0.239 | 1 520.90 | 64.00 USD/kg | 486.69 | 9.6 | 50.69 |
T4 | 0.41 L/hm2 | 0.725 | 0.274 | 1 743.63 | 64.00 USD/L | 557.96 | 26.24 | 21.26 |
T5 | 1.50 L/hm2 | 0.6 | 0.149 | 948.18 | 15.36 USD/L | 303.41 | 23.04 | 13.16 |
T6 | - | 0.451 | - | - | - | - | - | - |
Fig. 2. Reductions in abundances of non-target organisms relative to untreated plots at 10 d after the first (A) and the second (B) applications of insecticides. LBB, Ladybird beetle; WS, Wolf spider; CB, Carabid beetle; EW, Earwig; GMB, Green mirid bug; DF, Damsel fly.
Treatment | Number of egg parasitoid adults (Mean ± SE, n = 3) | Reduction over control (%) | |||||
---|---|---|---|---|---|---|---|
Tricogramma | Telenomus | Tetrastichus | Tricogramma | Telenomus | Tetrastichus | ||
T1 | 2.33 ± 0.16 c | 2.33 ± 0.17 c | 4.33 ± 0.03 bc | 56.28 | 63.19 | 48.01 | |
T2 | 3.00 ± 0.17 b | 2.67 ± 0.17 b | 5.00 ± 0.09 b | 43.71 | 57.97 | 39.97 | |
T3 | 2.00 ± 0.11 cd | 2.00 ± 0.14 c | 4.00 ± 0.17 c | 62.47 | 68.4 | 51.98 | |
T4 | 2.00 ± 0.11 cd | 1.67 ± 0.09 cd | 4.00 ± 0.23 c | 62.47 | 73.77 | 51.98 | |
T5 | 1.67 ± 0.16 d | 1.33 ± 0.03 d | 3.67 ± 0.24 c | 68.85 | 78.98 | 56.06 | |
T6 | 5.33 ± 0.16 a | 6.33 ± 0.17 a | 8.33 ± 0.33 a | - | - | - | |
LSD0.05 | 0.349 | 0.398 | 0.704 | ||||
Level of significance | ** | ** | ** | ||||
CV (%) | 7.08 | 8.21 | 7.91 | ||||
F-test | 148.69 | 212.95 | 61.15 |
Table 6 Effects of insecticides on numbers of adult egg parasitoids of yellow stem borer at 10 d after the first spray.
Treatment | Number of egg parasitoid adults (Mean ± SE, n = 3) | Reduction over control (%) | |||||
---|---|---|---|---|---|---|---|
Tricogramma | Telenomus | Tetrastichus | Tricogramma | Telenomus | Tetrastichus | ||
T1 | 2.33 ± 0.16 c | 2.33 ± 0.17 c | 4.33 ± 0.03 bc | 56.28 | 63.19 | 48.01 | |
T2 | 3.00 ± 0.17 b | 2.67 ± 0.17 b | 5.00 ± 0.09 b | 43.71 | 57.97 | 39.97 | |
T3 | 2.00 ± 0.11 cd | 2.00 ± 0.14 c | 4.00 ± 0.17 c | 62.47 | 68.4 | 51.98 | |
T4 | 2.00 ± 0.11 cd | 1.67 ± 0.09 cd | 4.00 ± 0.23 c | 62.47 | 73.77 | 51.98 | |
T5 | 1.67 ± 0.16 d | 1.33 ± 0.03 d | 3.67 ± 0.24 c | 68.85 | 78.98 | 56.06 | |
T6 | 5.33 ± 0.16 a | 6.33 ± 0.17 a | 8.33 ± 0.33 a | - | - | - | |
LSD0.05 | 0.349 | 0.398 | 0.704 | ||||
Level of significance | ** | ** | ** | ||||
CV (%) | 7.08 | 8.21 | 7.91 | ||||
F-test | 148.69 | 212.95 | 61.15 |
Treatment | Number of egg parasitoid adults (Mean ± SE, n = 2) | Reduction over control (%) | |||||
---|---|---|---|---|---|---|---|
Tricogramma | Telenomus | Tetrastichus | Tricogramma | Telenomus | Tetrastichus | ||
T1 | 2.67 ± 0.16 b | 2.67 ± 0.17 bc | 2.67 ± 0.16 c | 50.09 | 55.66 | 33.33 | |
T2 | 2.67 ± 0.17 b | 3.00 ± 0.11 b | 3.33 ± 0.17 b | 50.09 | 50 | 16.75 | |
T3 | 2.00 ± 0.08 c | 2.00 ± 0.28 cd | 2.33 ± 0.20 cd | 62.47 | 66.66 | 41.75 | |
T4 | 2.00 ± 0.05 c | 1.67 ± 0.33 d | 2.00 ± 0.11 de | 62.47 | 72.33 | 50 | |
T5 | 1.33 ± 0.07 d | 1.33 ± 0.08 d | 1.67 ± 0.06 e | 75.04 | 77.83 | 58.5 | |
T6 | 5.33 ± 0.24 a | 6.00 ± 0.17 a | 4.00 ± 2.00 a | - | - | - | |
LSD0.05 | 0.511 | 0.678 | 0.438 | ||||
Level of significance | ** | ** | ** | ||||
CV (%) | 10.53 | 13.4 | 9.01 |
Table 7 Effects of insecticides on numbers of adult egg parasitoids of yellow stem borer at 10 d after the second spray.
Treatment | Number of egg parasitoid adults (Mean ± SE, n = 2) | Reduction over control (%) | |||||
---|---|---|---|---|---|---|---|
Tricogramma | Telenomus | Tetrastichus | Tricogramma | Telenomus | Tetrastichus | ||
T1 | 2.67 ± 0.16 b | 2.67 ± 0.17 bc | 2.67 ± 0.16 c | 50.09 | 55.66 | 33.33 | |
T2 | 2.67 ± 0.17 b | 3.00 ± 0.11 b | 3.33 ± 0.17 b | 50.09 | 50 | 16.75 | |
T3 | 2.00 ± 0.08 c | 2.00 ± 0.28 cd | 2.33 ± 0.20 cd | 62.47 | 66.66 | 41.75 | |
T4 | 2.00 ± 0.05 c | 1.67 ± 0.33 d | 2.00 ± 0.11 de | 62.47 | 72.33 | 50 | |
T5 | 1.33 ± 0.07 d | 1.33 ± 0.08 d | 1.67 ± 0.06 e | 75.04 | 77.83 | 58.5 | |
T6 | 5.33 ± 0.24 a | 6.00 ± 0.17 a | 4.00 ± 2.00 a | - | - | - | |
LSD0.05 | 0.511 | 0.678 | 0.438 | ||||
Level of significance | ** | ** | ** | ||||
CV (%) | 10.53 | 13.4 | 9.01 |
Period | Treatment | Number of LBB in 20 hills (Mean ± SE, n = 2) | Reduction over control (%) | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 DBS | 5 DAS | 10 DAS | 15 DAS | 5 DAS | 10 DAS | 15 DAS | ||||||||
After the first application of insecticides | T1 | 10.67 ± 0.88 | 9.33 ± 0.66 b | 11.00 ± 0.57 b | 10.33 ± 0.33 abc | 25.69 | 26.66 | 16.22 | ||||||
T2 | 9.33 ± 0.88 | 10.00 ± 0.57 ab | 11.67 ± 0.88 b | 11.00 ± 0.55 ab | 23.07 | 22.2 | 10.78 | |||||||
T3 | 11.00 ± 1.16 | 9.00 ± 1.53 b | 10.33 ± 0.33 bc | 9.67 ± 0.33 bc | 30.76 | 31.13 | 21.66 | |||||||
T4 | 10.33 ± 1.20 | 9.00 ± 1.53 b | 10.00 ± 1.00 bc | 9.67 ± 0.33 bc | 30.76 | 33.33 | 21.66 | |||||||
T5 | 9.67 ± 0.66 | 7.33 ± 0.66 b | 8.33 ± 0.33 c | 8.00 ± 1.15 c | 43.61 | 44.66 | 35.11 | |||||||
T6 | 9.33 ± 0.33 | 13.00 ± 0.57 a | 15.00 ± 0.57 a | 12.33 ± 0.88 a | - | - | - | |||||||
LSD0.05 | 3.03 | 3.06 | 2.14 | 2.32 | ||||||||||
Level of significance | NS | * | ** | * | ||||||||||
CV (%) | 16.61 | 17.41 | 10.66 | 12.57 | ||||||||||
F-test | 0.545 | 3.71 | 10.79 | 3.89 | ||||||||||
After the second application of insecticides | T1 | 15.33 ± 0.66 | 15.00 ± 0.57 b | 16.67 ± 0.88 b | 15.00 ± 1.00 bc | 25 | 35.06 | 38.34 | ||||||
T2 | 17.33 ± 1.20 | 15.67 ± 0.88 b | 17.33 ± 0.66 b | 17.00 ± 0.57 b | 21.65 | 32.48 | 30.12 | |||||||
T3 | 14.67 ± 2.85 | 14.67 ± 1.86 b | 15.67 ± 0.88 bc | 14.00 ± 1.00 bc | 26.65 | 38.95 | 42.45 | |||||||
T4 | 15.33 ± 2.18 | 14.67 ± 0.66 b | 16.33 ± 0.88 b | 14.33 ± 0.33 bc | 26.65 | 36.38 | 41.1 | |||||||
T5 | 13.67 ± 2.02 | 10.67 ± 0.88 c | 13.00 ± 0.55 c | 13.67 ± 0.66 c | 46.65 | 49.35 | 43.81 | |||||||
T6 | 16.00 ± 1.15 | 20.00 ± 0.57 a | 25.67 ± 0.88 a | 24.33 ± 1.20 a | - | - | - | |||||||
LSD0.05 | 6.14 | 3.34 | 2.68 | 2.88 | ||||||||||
Level of significance | NS | ** | ** | ** | ||||||||||
CV (%) | 21.96 | 12.18 | 8.48 | 9.69 | ||||||||||
F-test | 0.401 | 7.85 | 25.31 | 19.68 |
Supplemental Table 1 Effects of insecticides on populations of ladybird beetle (LBB) after the first and second application of insecticides.
Period | Treatment | Number of LBB in 20 hills (Mean ± SE, n = 2) | Reduction over control (%) | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 DBS | 5 DAS | 10 DAS | 15 DAS | 5 DAS | 10 DAS | 15 DAS | ||||||||
After the first application of insecticides | T1 | 10.67 ± 0.88 | 9.33 ± 0.66 b | 11.00 ± 0.57 b | 10.33 ± 0.33 abc | 25.69 | 26.66 | 16.22 | ||||||
T2 | 9.33 ± 0.88 | 10.00 ± 0.57 ab | 11.67 ± 0.88 b | 11.00 ± 0.55 ab | 23.07 | 22.2 | 10.78 | |||||||
T3 | 11.00 ± 1.16 | 9.00 ± 1.53 b | 10.33 ± 0.33 bc | 9.67 ± 0.33 bc | 30.76 | 31.13 | 21.66 | |||||||
T4 | 10.33 ± 1.20 | 9.00 ± 1.53 b | 10.00 ± 1.00 bc | 9.67 ± 0.33 bc | 30.76 | 33.33 | 21.66 | |||||||
T5 | 9.67 ± 0.66 | 7.33 ± 0.66 b | 8.33 ± 0.33 c | 8.00 ± 1.15 c | 43.61 | 44.66 | 35.11 | |||||||
T6 | 9.33 ± 0.33 | 13.00 ± 0.57 a | 15.00 ± 0.57 a | 12.33 ± 0.88 a | - | - | - | |||||||
LSD0.05 | 3.03 | 3.06 | 2.14 | 2.32 | ||||||||||
Level of significance | NS | * | ** | * | ||||||||||
CV (%) | 16.61 | 17.41 | 10.66 | 12.57 | ||||||||||
F-test | 0.545 | 3.71 | 10.79 | 3.89 | ||||||||||
After the second application of insecticides | T1 | 15.33 ± 0.66 | 15.00 ± 0.57 b | 16.67 ± 0.88 b | 15.00 ± 1.00 bc | 25 | 35.06 | 38.34 | ||||||
T2 | 17.33 ± 1.20 | 15.67 ± 0.88 b | 17.33 ± 0.66 b | 17.00 ± 0.57 b | 21.65 | 32.48 | 30.12 | |||||||
T3 | 14.67 ± 2.85 | 14.67 ± 1.86 b | 15.67 ± 0.88 bc | 14.00 ± 1.00 bc | 26.65 | 38.95 | 42.45 | |||||||
T4 | 15.33 ± 2.18 | 14.67 ± 0.66 b | 16.33 ± 0.88 b | 14.33 ± 0.33 bc | 26.65 | 36.38 | 41.1 | |||||||
T5 | 13.67 ± 2.02 | 10.67 ± 0.88 c | 13.00 ± 0.55 c | 13.67 ± 0.66 c | 46.65 | 49.35 | 43.81 | |||||||
T6 | 16.00 ± 1.15 | 20.00 ± 0.57 a | 25.67 ± 0.88 a | 24.33 ± 1.20 a | - | - | - | |||||||
LSD0.05 | 6.14 | 3.34 | 2.68 | 2.88 | ||||||||||
Level of significance | NS | ** | ** | ** | ||||||||||
CV (%) | 21.96 | 12.18 | 8.48 | 9.69 | ||||||||||
F-test | 0.401 | 7.85 | 25.31 | 19.68 |
Period | Treatment | Number of LBB in 20 hills (Mean ± SE, n = 2) | Reduction over control (%) | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 DBS | 5 DAS | 10 DAS | 15 DAS | 5 DAS | 10 DAS | 15 DAS | ||||||||
After the first application of insecticides | T1 | 4.33 ± 1.20 | 3.67 ± 0.33b | 4.00 ± 0.57bc | 4.00 ± 0.57abc | 39 | 33.33 | 24.95 | ||||||
T2 | 4.67 ± 0.66 | 4.00 ± 0.57b | 4.67 ± 0.33ab | 4.33 ± 0.33ab | 33.33 | 22.33 | 18.76 | |||||||
T3 | 5.33 ± 1.76 | 3.33 ± 0.33bc | 3.67 ± 0.66bc | 3.67 ± .33abc | 44.5 | 39 | 31.33 | |||||||
T4 | 4.00 ± 0.33 | 3.00 ± 0.57bc | 3.33 ± 0.33bc | 3.33 ± 0.66bc | 50 | 44.5 | 37.52 | |||||||
T5 | 5.00 ± 1.00 | 2.33 ± 0.33c | 2.67 ± 0.33c | 2.33 ± 0.88c | 61.16 | 55.66 | 56.28 | |||||||
T6 | 4.67 ± 1.76 | 6.00 ± 0.57a | 6.00 ± 0.57a | 5.33 ± 0.66a | -- | -- | -- | |||||||
LSD0.05 | 3.16 | 1.22 | 1.51 | 1.68 | ||||||||||
Level of significance | NS | ** | ** | * | ||||||||||
CV (%) | 37.32 | 18.13 | 20.47 | 24.17 | ||||||||||
F-test | 0.219 | 10.36 | 5.88 | 3.53 | ||||||||||
After the second application of insecticides | T1 | 7.67 ± 0.33 | 7.00 ± 0.57 bc | 8.00 ± 0.57 ab | 7.67 ± 0.88 cd | 22.22 | 17.18 | 23.4 | ||||||
T2 | 8.67 ± 0.33 | 7.67 ± 0.66 ab | 8.33 ± 0.33 ab | 9.67 ± 0.33 ab | 14.88 | 13.76 | 3.4 | |||||||
T3 | 8.00 ± 0.57 | 6.67 ± 0.33 bc | 7.00 ± 0.57 bc | 8.33 ± 0.66 bcd | 26 | 27.53 | 16.7 | |||||||
T4 | 8.33 ± 1.20 | 6.00 ± 0.57 bc | 6.67 ± 0.33 bc | 9.00 ± 0.57 abc | 33.33 | 31.05 | 10 | |||||||
T5 | 7.67 ± 0.88 | 5.00 ± 0.57 c | 5.67 ± 0.88 c | 7.00 ± 0.57 d | 44.44 | 41.4 | 30 | |||||||
T6 | 7.33 ± 0.33 | 9.00 ± 0.55 a | 9.67 ± 0.33 a | 10.00 ± 0.57 a | -- | -- | -- | |||||||
LSD0.05 | 2.34 | 1.86 | 1.81 | 1.44 | ||||||||||
Level of significance | NS | ** | ** | ** | ||||||||||
CV (%) | 16.2 | 14.91 | 13.16 | 9.22 | ||||||||||
F-test | 0.436 | 5.38 | 6.02 | 6.43 |
Supplemental Table 2 Effect of insecticides on wolf spider populations after the first and second spray.
Period | Treatment | Number of LBB in 20 hills (Mean ± SE, n = 2) | Reduction over control (%) | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 DBS | 5 DAS | 10 DAS | 15 DAS | 5 DAS | 10 DAS | 15 DAS | ||||||||
After the first application of insecticides | T1 | 4.33 ± 1.20 | 3.67 ± 0.33b | 4.00 ± 0.57bc | 4.00 ± 0.57abc | 39 | 33.33 | 24.95 | ||||||
T2 | 4.67 ± 0.66 | 4.00 ± 0.57b | 4.67 ± 0.33ab | 4.33 ± 0.33ab | 33.33 | 22.33 | 18.76 | |||||||
T3 | 5.33 ± 1.76 | 3.33 ± 0.33bc | 3.67 ± 0.66bc | 3.67 ± .33abc | 44.5 | 39 | 31.33 | |||||||
T4 | 4.00 ± 0.33 | 3.00 ± 0.57bc | 3.33 ± 0.33bc | 3.33 ± 0.66bc | 50 | 44.5 | 37.52 | |||||||
T5 | 5.00 ± 1.00 | 2.33 ± 0.33c | 2.67 ± 0.33c | 2.33 ± 0.88c | 61.16 | 55.66 | 56.28 | |||||||
T6 | 4.67 ± 1.76 | 6.00 ± 0.57a | 6.00 ± 0.57a | 5.33 ± 0.66a | -- | -- | -- | |||||||
LSD0.05 | 3.16 | 1.22 | 1.51 | 1.68 | ||||||||||
Level of significance | NS | ** | ** | * | ||||||||||
CV (%) | 37.32 | 18.13 | 20.47 | 24.17 | ||||||||||
F-test | 0.219 | 10.36 | 5.88 | 3.53 | ||||||||||
After the second application of insecticides | T1 | 7.67 ± 0.33 | 7.00 ± 0.57 bc | 8.00 ± 0.57 ab | 7.67 ± 0.88 cd | 22.22 | 17.18 | 23.4 | ||||||
T2 | 8.67 ± 0.33 | 7.67 ± 0.66 ab | 8.33 ± 0.33 ab | 9.67 ± 0.33 ab | 14.88 | 13.76 | 3.4 | |||||||
T3 | 8.00 ± 0.57 | 6.67 ± 0.33 bc | 7.00 ± 0.57 bc | 8.33 ± 0.66 bcd | 26 | 27.53 | 16.7 | |||||||
T4 | 8.33 ± 1.20 | 6.00 ± 0.57 bc | 6.67 ± 0.33 bc | 9.00 ± 0.57 abc | 33.33 | 31.05 | 10 | |||||||
T5 | 7.67 ± 0.88 | 5.00 ± 0.57 c | 5.67 ± 0.88 c | 7.00 ± 0.57 d | 44.44 | 41.4 | 30 | |||||||
T6 | 7.33 ± 0.33 | 9.00 ± 0.55 a | 9.67 ± 0.33 a | 10.00 ± 0.57 a | -- | -- | -- | |||||||
LSD0.05 | 2.34 | 1.86 | 1.81 | 1.44 | ||||||||||
Level of significance | NS | ** | ** | ** | ||||||||||
CV (%) | 16.2 | 14.91 | 13.16 | 9.22 | ||||||||||
F-test | 0.436 | 5.38 | 6.02 | 6.43 |
Period | Treatment | Number of carabid beetle in 20 hills (Mean ± SE, n = 2) | |||
---|---|---|---|---|---|
1 DBS | 5 DAS | 10 DAS | 15 DAS | ||
After the first application of insecticides | T1 | 3.33 ± 0.88 | 3.00 ± 0.57bc | 3.33 ± 0.33 bc | 4.33 ± 0.33 abc |
T2 | 3.67 ± 0.66 | 3.67 ± 0.66b | 4.00 ± 0.57 b | 4.67 ± 0.33 ab | |
T3 | 4.00 ± 0.57 | 2.67 ± 0.33cd | 2.67 ± 0.33 bc | 3.67 ± 0.33 bcd | |
T4 | 3.33 ± 0.33 | 2.33 ± 0.33cd | 2.67 ± 0.33 c | 3.33 ± 0.33 cd | |
T5 | 4.33 ± 0.33 | 2.00 ± 0.57d | 2.33 ± 0.33 c | 2.67 ± 0.33 d | |
T6 | 4.00 ± 0.57 | 4.67 ± 0.33a | 5.33 ± 0.33 a | 5.00 ± 0.57 a | |
LSD0.05 | 1.92 | 0.841 | 1.27 | 1.23 | |
Level of significance | NS | ** | ** | ** | |
CV (%) | 28.04 | 15.14 | 20.63 | 17.11 | |
F-test | 0.435 | 13.35 | 7.75 | 5.09 | |
After the second application of insecticides | T1 | 6.33 ± 0.33 | 6.33 ± 0.66 a | 7.00 ± 0.57 ab | 7.67 ± 0.33 abc |
T2 | 7.33 ± 0.33 | 6.67 ± 0.33 a | 7.33 ± 0.33 ab | 8.33 ± 0.66 ab | |
T3 | 6.67 ± 0.66 | 6.00 ± 0.57 a | 6.67 ± 0.66 b | 7.00 ± 1.16 bcd | |
T4 | 7.00 ± 0.57 | 5.67 ± 0.33 ab | 6.33 ± 0.33 b | 6.33 ± 0.33 cd | |
T5 | 6.00 ± 0.57 | 4.00 ± 0.577 b | 4.33 ± 0.33 c | 5.67 ± 0.66 d | |
T6 | 6.00 ± 0.57 | 7.00 ± 0.577 a | 8.33 ± 0.57 a | 9.00 ± 0.33 a | |
LSD0.05 | 1.74 | 1.75 | 1.45 | 1.36 | |
Level of significance | NS | * | ** | ** | |
CV (%) | 14.65 | 16.15 | 11.94 | 10.22 | |
F-test | 0.963 | 3.67 | 8.42 | 8.31 |
Supplemental Table 3 Effect of insecticides on carabid beetle after the first and second spray.
Period | Treatment | Number of carabid beetle in 20 hills (Mean ± SE, n = 2) | |||
---|---|---|---|---|---|
1 DBS | 5 DAS | 10 DAS | 15 DAS | ||
After the first application of insecticides | T1 | 3.33 ± 0.88 | 3.00 ± 0.57bc | 3.33 ± 0.33 bc | 4.33 ± 0.33 abc |
T2 | 3.67 ± 0.66 | 3.67 ± 0.66b | 4.00 ± 0.57 b | 4.67 ± 0.33 ab | |
T3 | 4.00 ± 0.57 | 2.67 ± 0.33cd | 2.67 ± 0.33 bc | 3.67 ± 0.33 bcd | |
T4 | 3.33 ± 0.33 | 2.33 ± 0.33cd | 2.67 ± 0.33 c | 3.33 ± 0.33 cd | |
T5 | 4.33 ± 0.33 | 2.00 ± 0.57d | 2.33 ± 0.33 c | 2.67 ± 0.33 d | |
T6 | 4.00 ± 0.57 | 4.67 ± 0.33a | 5.33 ± 0.33 a | 5.00 ± 0.57 a | |
LSD0.05 | 1.92 | 0.841 | 1.27 | 1.23 | |
Level of significance | NS | ** | ** | ** | |
CV (%) | 28.04 | 15.14 | 20.63 | 17.11 | |
F-test | 0.435 | 13.35 | 7.75 | 5.09 | |
After the second application of insecticides | T1 | 6.33 ± 0.33 | 6.33 ± 0.66 a | 7.00 ± 0.57 ab | 7.67 ± 0.33 abc |
T2 | 7.33 ± 0.33 | 6.67 ± 0.33 a | 7.33 ± 0.33 ab | 8.33 ± 0.66 ab | |
T3 | 6.67 ± 0.66 | 6.00 ± 0.57 a | 6.67 ± 0.66 b | 7.00 ± 1.16 bcd | |
T4 | 7.00 ± 0.57 | 5.67 ± 0.33 ab | 6.33 ± 0.33 b | 6.33 ± 0.33 cd | |
T5 | 6.00 ± 0.57 | 4.00 ± 0.577 b | 4.33 ± 0.33 c | 5.67 ± 0.66 d | |
T6 | 6.00 ± 0.57 | 7.00 ± 0.577 a | 8.33 ± 0.57 a | 9.00 ± 0.33 a | |
LSD0.05 | 1.74 | 1.75 | 1.45 | 1.36 | |
Level of significance | NS | * | ** | ** | |
CV (%) | 14.65 | 16.15 | 11.94 | 10.22 | |
F-test | 0.963 | 3.67 | 8.42 | 8.31 |
Period | Treatment | Number of carabid beetle in 20 hills (Mean ± SE, n = 2) | |||
---|---|---|---|---|---|
1 DBS | 5 DAS | 10 DAS | 15 DAS | ||
After the first application of insecticides | T1 | 2.67 ± 0.66 | 1.67 ± 0.33 b | 1.33 ± 0.33c | 1.00 ± 0.57 c |
T2 | 3.33 ± 0.33 | 2.67 ± 0.33 a | 2.33 ± 0.33b | 2.00 ± 0.57 b | |
T3 | 2.00 ± 0.57 | 1.67 ± 0.88 b | 1.33 ± 0.33c | 2.00 ± 0.57 b | |
T4 | 1.67 ± 0.33 | 2.67 ± 0.33 a | 2.33 ± 0.33b | 2.33 ± 0.33 b | |
T5 | 2.33 ± 0.33 | 1.00 ± 0.57 b | 1.33 ± 0.33c | 1.00 ± 0.57 c | |
T6 | 2.67 ± 0.33 | 3.33 ± 0.66 a | 4.00 ± 0.57a | 3.00 ± 0.57 a | |
LSD0.05 | 1.31 | 0.76 | 0.75 | 0.66 | |
Level of significance | NS | ** | ** | ** | |
CV (%) | 29.56 | 19.31 | 19.83 | 19.37 | |
F-test | 1.95 | 12.76 | 18.76 | 13.61 | |
After the second application of insecticides | T1 | 3.33 ± 0.66 | 2.67 ± 0.33 bc | 3.00 ± 0.55 bcd | 3.67 ± 0.66 b |
T2 | 3.67 ± 0.88 | 3.33 ± 0.88 ab | 3.67 ± 0.66 ab | 4.33 ± 0.88 ab | |
T3 | 3.33 ± 0.33 | 2.67 ± 0.88 bc | 2.67 ± 0.66 cd | 3.67 ± 0.88 b | |
T4 | 3.33 ± 0.33 | 2.67 ± 0.33 bc | 3.33 ± 0.66 bc | 3.67 ± 0.33 b | |
T5 | 3.00 ± 0.57 | 2.00 ± 0.57 c | 2.33 ± 0.33 d | 2.67 ± 0.33 c | |
T6 | 3.00 ± 0.57 | 3.67 ± 0.66 a | 4.33 ± 0.33 a | 4.67 ± 0.88 a | |
LSD0.05 | 1.93 | 0.91 | 0.841 | 0.774 | |
Level of significance | NS | * | ** | ** | |
CV (%) | 32.32 | 17.65 | 14.35 | 11.25 | |
F-test | 0.168 | 4.13 | 7.27 | 7.87 |
Supplemental Table 4 Effect of insecticides on populations of earwigs after the first and second spray.
Period | Treatment | Number of carabid beetle in 20 hills (Mean ± SE, n = 2) | |||
---|---|---|---|---|---|
1 DBS | 5 DAS | 10 DAS | 15 DAS | ||
After the first application of insecticides | T1 | 2.67 ± 0.66 | 1.67 ± 0.33 b | 1.33 ± 0.33c | 1.00 ± 0.57 c |
T2 | 3.33 ± 0.33 | 2.67 ± 0.33 a | 2.33 ± 0.33b | 2.00 ± 0.57 b | |
T3 | 2.00 ± 0.57 | 1.67 ± 0.88 b | 1.33 ± 0.33c | 2.00 ± 0.57 b | |
T4 | 1.67 ± 0.33 | 2.67 ± 0.33 a | 2.33 ± 0.33b | 2.33 ± 0.33 b | |
T5 | 2.33 ± 0.33 | 1.00 ± 0.57 b | 1.33 ± 0.33c | 1.00 ± 0.57 c | |
T6 | 2.67 ± 0.33 | 3.33 ± 0.66 a | 4.00 ± 0.57a | 3.00 ± 0.57 a | |
LSD0.05 | 1.31 | 0.76 | 0.75 | 0.66 | |
Level of significance | NS | ** | ** | ** | |
CV (%) | 29.56 | 19.31 | 19.83 | 19.37 | |
F-test | 1.95 | 12.76 | 18.76 | 13.61 | |
After the second application of insecticides | T1 | 3.33 ± 0.66 | 2.67 ± 0.33 bc | 3.00 ± 0.55 bcd | 3.67 ± 0.66 b |
T2 | 3.67 ± 0.88 | 3.33 ± 0.88 ab | 3.67 ± 0.66 ab | 4.33 ± 0.88 ab | |
T3 | 3.33 ± 0.33 | 2.67 ± 0.88 bc | 2.67 ± 0.66 cd | 3.67 ± 0.88 b | |
T4 | 3.33 ± 0.33 | 2.67 ± 0.33 bc | 3.33 ± 0.66 bc | 3.67 ± 0.33 b | |
T5 | 3.00 ± 0.57 | 2.00 ± 0.57 c | 2.33 ± 0.33 d | 2.67 ± 0.33 c | |
T6 | 3.00 ± 0.57 | 3.67 ± 0.66 a | 4.33 ± 0.33 a | 4.67 ± 0.88 a | |
LSD0.05 | 1.93 | 0.91 | 0.841 | 0.774 | |
Level of significance | NS | * | ** | ** | |
CV (%) | 32.32 | 17.65 | 14.35 | 11.25 | |
F-test | 0.168 | 4.13 | 7.27 | 7.87 |
Period | Treatment | Number of carabid beetle in 20 hills (Mean ± SE, n = 2) | |||
---|---|---|---|---|---|
1 DBS | 5 DAS | 10 DAS | 15 DAS | ||
After the first application of insecticides | T1 | 3.33 ± 0.33 | 2.67 ± 0.33 bc | 3.00 ± 0.57 bc | 3.33 ± 0.33 bc |
T2 | 3.00 ± 0.57 | 3.00 ± 0.57 b | 3.33 ± 0.33 b | 3.67 ± 0.33 b | |
T3 | 2.67 ± 0.33 | 2.33 ± 0.33 bc | 2.67 ± 0.33 cd | 3.00 ± 0.57 bc | |
T4 | 2.67 ± 0.33 | 2.00 ± 0.57 c | 2.33 ± 0.33 d | 3.00 ± 0.57 bc | |
T5 | 2.33 ± 0.33 | 1.33 ± 0.33 d | 1.67 ± 0.33 e | 2.67 ± 0.33 c | |
T6 | 3.00 ± 0.57 | 3.67 ± 0.33 a | 4.00 ± 0.57 a | 5.00 ± 0.57 a | |
LSD0.05 | 0.94 | 0.661 | 0.575 | 0.845 | |
Level of significance | NS | ** | ** | ** | |
CV (%) | 18.23 | 14.51 | 11.18 | 13.48 | |
F-test | 1.37 | 14.94 | 19.6 | 9.69 | |
After the second application of insecticides | T1 | 3.67 ± 0.33 | 3.00 ± 0.57 b | 2.33 ± 0.33 abc | 2.67 ± 0.33 ab |
T2 | 3.00 ± 0.57 | 3.33 ± 0.88 b | 3.00 ± 0.57 ab | 3.00 ± 0.57 ab | |
T3 | 3.00 ± 0.57 | 2.67 ± 0.33 bc | 2.00 ± 0.57 bc | 2.33 ± 0.33 bc | |
T4 | 3.00 ± 0.57 | 2.67 ± 0.33 bc | 2.00 ± 0.57 bc | 2.33 ± 0.33 bc | |
T5 | 3.67 ± 0.33 | 2.00 ± 0.57 c | 1.67 ± 0.33 c | 1.67 ± 0.33 c | |
T6 | 2.67 ± 0.33 | 4.67 ± 0.33 a | 3.33 ± 0.33 a | 3.33 ± 0.88 a | |
LSD0.05 | 1.62 | 0.815 | 0.997 | 0.823 | |
Level of significance | NS | ** | * | ** | |
CV (%) | 28.25 | 14.66 | 22.92 | 17.73 | |
F-test | 0.625 | 12.24 | 4.18 | 4.98 |
Supplemental Table 5 Effect of insecticides on populations of green mirid bugs after the first and second spray.
Period | Treatment | Number of carabid beetle in 20 hills (Mean ± SE, n = 2) | |||
---|---|---|---|---|---|
1 DBS | 5 DAS | 10 DAS | 15 DAS | ||
After the first application of insecticides | T1 | 3.33 ± 0.33 | 2.67 ± 0.33 bc | 3.00 ± 0.57 bc | 3.33 ± 0.33 bc |
T2 | 3.00 ± 0.57 | 3.00 ± 0.57 b | 3.33 ± 0.33 b | 3.67 ± 0.33 b | |
T3 | 2.67 ± 0.33 | 2.33 ± 0.33 bc | 2.67 ± 0.33 cd | 3.00 ± 0.57 bc | |
T4 | 2.67 ± 0.33 | 2.00 ± 0.57 c | 2.33 ± 0.33 d | 3.00 ± 0.57 bc | |
T5 | 2.33 ± 0.33 | 1.33 ± 0.33 d | 1.67 ± 0.33 e | 2.67 ± 0.33 c | |
T6 | 3.00 ± 0.57 | 3.67 ± 0.33 a | 4.00 ± 0.57 a | 5.00 ± 0.57 a | |
LSD0.05 | 0.94 | 0.661 | 0.575 | 0.845 | |
Level of significance | NS | ** | ** | ** | |
CV (%) | 18.23 | 14.51 | 11.18 | 13.48 | |
F-test | 1.37 | 14.94 | 19.6 | 9.69 | |
After the second application of insecticides | T1 | 3.67 ± 0.33 | 3.00 ± 0.57 b | 2.33 ± 0.33 abc | 2.67 ± 0.33 ab |
T2 | 3.00 ± 0.57 | 3.33 ± 0.88 b | 3.00 ± 0.57 ab | 3.00 ± 0.57 ab | |
T3 | 3.00 ± 0.57 | 2.67 ± 0.33 bc | 2.00 ± 0.57 bc | 2.33 ± 0.33 bc | |
T4 | 3.00 ± 0.57 | 2.67 ± 0.33 bc | 2.00 ± 0.57 bc | 2.33 ± 0.33 bc | |
T5 | 3.67 ± 0.33 | 2.00 ± 0.57 c | 1.67 ± 0.33 c | 1.67 ± 0.33 c | |
T6 | 2.67 ± 0.33 | 4.67 ± 0.33 a | 3.33 ± 0.33 a | 3.33 ± 0.88 a | |
LSD0.05 | 1.62 | 0.815 | 0.997 | 0.823 | |
Level of significance | NS | ** | * | ** | |
CV (%) | 28.25 | 14.66 | 22.92 | 17.73 | |
F-test | 0.625 | 12.24 | 4.18 | 4.98 |
Period | Treatment | Number of carabid beetle in 20 hills (Mean ± SE, n = 2) | |||
---|---|---|---|---|---|
1 DBS | 5 DAS | 10 DAS | 15 DAS | ||
After the first application of insecticides | T1 | 2.67 ± 0.66 | 2.33 ± 0.33 b | 2.67 ± 0.33 bc | 2.67 ± 0.33 bc |
T2 | 3.33 ± 0.33 | 2.67 ± 0.33 b | 3.00 ± 0.57 b | 3.00 ± 0.57 b | |
T3 | 2.00 ± 0.57 | 2.00 ± 0.57 bc | 2.00 ± 0.57 cd | 2.33 ± 0.33 bc | |
T4 | 3.00 ± 0.57 | 2.00 ± 0.57 bc | 2.33 ± 0.33 bcd | 2.33 ± 0.33 bc | |
T5 | 2.33 ± 0.33 | 1.33 ± 0.33 c | 1.67 ± 0.33 d | 1.67 ± 0.33 c | |
T6 | 3.00 ± 0.57 | 4.67 ± 0.33 a | 5.00 ± 0.57 a | 4.67 ± 0.66 a | |
LSD0.05 | 1.18 | 0.861 | 0.822 | 1.22 | |
Level of significance | NS | ** | ** | ** | |
CV (%) | 23.87 | 18.95 | 16.26 | 24.11 | |
F-test | 1.71 | 17.68 | 20.7 | 7.03 | |
After the second application of insecticides | T1 | 3.33 ± 0.66 | 2.67 ± 0.33 bc | 2.67 ± 0.33 bc | 3.66 ± 0.66 b |
T2 | 3.67 ± 0.88 | 3.33 ± 0.88 b | 3.33 ± 0.33 b | 4.00 ± 0.57 b | |
T3 | 3.33 ± 0.33 | 2.67 ± 0.88 bc | 2.33 ± 0.33 bc | 3.33 ± 0.33 bc | |
T4 | 3.33 ± 0.33 | 2.67 ± 0.33 bc | 2.33 ± 0.33 bc | 3.33 ± 0.33 bc | |
T5 | 3.00 ± 0.55 | 2.00 ± 0.57 c | 2.00 ± 0.57 c | 2.33 ± 0.33 c | |
T6 | 3.00 ± 0.57 | 4.67 ± 0.33 a | 5.00 ± 0.57 a | 5.33 ± 0.33 a | |
LSD0.05 | 1.92 | 1.01 | 1.06 | 0.98 | |
Level of significance | NS | ** | ** | ** | |
CV (%) | 32.32 | 18.51 | 19.77 | 14.75 | |
F-test | 0.168 | 8.21 | 10.78 | 10.03 |
Supplemental Table 6 Effect of insecticides on damsel fly after the first and second spray.
Period | Treatment | Number of carabid beetle in 20 hills (Mean ± SE, n = 2) | |||
---|---|---|---|---|---|
1 DBS | 5 DAS | 10 DAS | 15 DAS | ||
After the first application of insecticides | T1 | 2.67 ± 0.66 | 2.33 ± 0.33 b | 2.67 ± 0.33 bc | 2.67 ± 0.33 bc |
T2 | 3.33 ± 0.33 | 2.67 ± 0.33 b | 3.00 ± 0.57 b | 3.00 ± 0.57 b | |
T3 | 2.00 ± 0.57 | 2.00 ± 0.57 bc | 2.00 ± 0.57 cd | 2.33 ± 0.33 bc | |
T4 | 3.00 ± 0.57 | 2.00 ± 0.57 bc | 2.33 ± 0.33 bcd | 2.33 ± 0.33 bc | |
T5 | 2.33 ± 0.33 | 1.33 ± 0.33 c | 1.67 ± 0.33 d | 1.67 ± 0.33 c | |
T6 | 3.00 ± 0.57 | 4.67 ± 0.33 a | 5.00 ± 0.57 a | 4.67 ± 0.66 a | |
LSD0.05 | 1.18 | 0.861 | 0.822 | 1.22 | |
Level of significance | NS | ** | ** | ** | |
CV (%) | 23.87 | 18.95 | 16.26 | 24.11 | |
F-test | 1.71 | 17.68 | 20.7 | 7.03 | |
After the second application of insecticides | T1 | 3.33 ± 0.66 | 2.67 ± 0.33 bc | 2.67 ± 0.33 bc | 3.66 ± 0.66 b |
T2 | 3.67 ± 0.88 | 3.33 ± 0.88 b | 3.33 ± 0.33 b | 4.00 ± 0.57 b | |
T3 | 3.33 ± 0.33 | 2.67 ± 0.88 bc | 2.33 ± 0.33 bc | 3.33 ± 0.33 bc | |
T4 | 3.33 ± 0.33 | 2.67 ± 0.33 bc | 2.33 ± 0.33 bc | 3.33 ± 0.33 bc | |
T5 | 3.00 ± 0.55 | 2.00 ± 0.57 c | 2.00 ± 0.57 c | 2.33 ± 0.33 c | |
T6 | 3.00 ± 0.57 | 4.67 ± 0.33 a | 5.00 ± 0.57 a | 5.33 ± 0.33 a | |
LSD0.05 | 1.92 | 1.01 | 1.06 | 0.98 | |
Level of significance | NS | ** | ** | ** | |
CV (%) | 32.32 | 18.51 | 19.77 | 14.75 | |
F-test | 0.168 | 8.21 | 10.78 | 10.03 |
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