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Table 7 Yield loss and ET values along with crop production values (Mean ± SE of 3 observations/cultivars) of S. obliqua Walkar on the selected sesame (S. indicum) cultivars (Rama, Shubhra and Amrit) observed over a traditional synthetic pesticide (Triazophos 40 EC) along with control (without pesticide) side by side having plant density of 30 ± 2 plants/m2 during summer season in 2019

From: Population ecology and economic thresholds-based time series for climate smart pest management of Spilosoma obliqua Walker (Lepidoptera: Arctiidae) on three sesame cultivars

Crop Parameter

Rama

Shubhra

Amrit

F2,6

Sig

Yield damage without treatment (Yd %)

20.984 ± 4.419a

22.072 ± 4.061a

16.805 ± 3.962a

0.449

0.658

Proportion of insect controlled (PC %)

16.537 ± 4.262a

17.929 ± 3.978a

12.960 ± 3.857a

0.366

0.708

Yield damage reduction after treatment (Yr %)

76.667 ± 5.092a

75.000 ± 4.811a

80.238 ± 3.095a

0.404

0.685

Damage per pest per plant (D%)

4.446 ± 0.215a

4.143 ± 0.298a

3.845 ± 0.181a

1.618

0.274

EIL (pest/30 plants)

36.316 ± 3.911

44.319 ± 3.372

62.853 ± 6.225

5.421

0.042

ETL (pest/30 plants)

33.243 ± 2.734

42.423 ± 3.971

58.404 ± 5.077

5.435

0.041

EEIL(pest/30 plants)

36.353 ± 3.926

44.365 ± 3.382

62.919 ± 6.242

5.421

0.042

Time to reach EIL/pest/30 plants (Ti days)

39.132 ± 3.969

55.231 ± 4.214

85.513 ± 5.399

26.551

 < 0.001

Time to reach ETL/pest/30 plants (Tt days)

38.132 ± 3.969

54.231 ± 4.214

84.513 ± 5.399

26.551

 < 0.001

Production values

Seed Yield [SY] (Kg/ha)

857.099 ± 0.000

695.269 ± 0.000

617.351 ± 0.000

–

–

Production cost [C] (Rs/ha)

22,400.000 ± 0.000a

22,400.000 ± 0.000a

22,400.000 ± 0.000a

–

–

Economic yield [EY](Rs/ha)

35,998.162 ± 0.000

29,201.306 ± 0.000

25,928.746 ± 0.000

–

–

Net Profit [NP] (Rs/ha)

13,598.162 ± 0.000

6801.306 ± 0.000

3528.746 ± 0.000

–

–

Benefit cost ratio (BCR/ha)

0.607 ± 0.000

0.304 ± 0.000

0.158 ± 0.000

–

–

Carbon sequestration efficiencies

Biomass produced (lbs dry wt/ m2)

0.279

0.222

0.152

–

–

Carbon sequestration (lbs/ m2)

0.14

0.111

0.076

–

–

Equivalent CO2 sequestration (lbs/ m2)

0.512

0.407

0.279

–

–

Carbon sequestration (lbs/ha)

1397.088

1111.320

762.048

–

–

Equivalent CO2 sequestration (lbs/ ha)

5122.656

4074.840

2794.176

–

–

Equivalent CO2 sequestration (Tons/ ha)

25,613.280

20,374.200

13,970.880

–

–

  1. Within the row means followed by same letter(s) are not significantly different at P < 0.05 by Tukey’s (HSD) test along with F values (ANOVA)