Table 4 Annual mean population of sucking pests over the years 2009–2019
Year | Cotton aphid per 3 leaves | Cotton jassid per 3 leaves | Cotton jassid catches per yellow sticky trap in a week | Cotton whitefly per 3 leaves | Cotton whitefly catches per yellow sticky trap in a week | Onion thrips per 3 leaves | Mirid bug per top one-third portion |
|---|---|---|---|---|---|---|---|
2009–2010 | 3.45 ± 1.23 | 8.61 ± 2.14 | – | 1.56 ± 0.19 | – | 1.46 ± 0.48 | 1.32 ± 0.23 |
2010–2011 | 4.36 ± 1.87 | 7.81 ± 1.47 | – | 1.66 ± 0.25 | – | 2.79 ± 0.33 | 0.40 ± 0.05 |
2011–2012 | 12.39 ± 2.92 | 2.27 ± 0.49 | – | 1.31 ± 0.25 | – | 4.09 ± 1.02 | 0.07 ± 0.06 |
2012–2013 | 9.62 ± 1.44 | 1.46 ± 0.15 | – | 2.40 ± 0.43 | – | 1.58 ± 0.57 | 0.76 ± 0.20 |
2013–2014 | 18.02 ± 3.81 | 6.27 ± 0.74 | 812.09 ± 52.85 | 1.38 ± 0.18 | 119.88 ± 14.41 | 1.23 ± 0.21 | 0.33 ± 0.05 |
2014–2015 | 5.11 ± 1.52 | 6.24 ± 1.40 | 833.36 ± 130.65 | 1.83 ± 0.48 | 66.29 ± 18.93 | 3.74 ± 1.71 | 0.33 ± 0.06 |
2015–2016 | 8.12 ± 2.69 | 3.83 ± 0.62 | 313.11 ± 45.08 | 1.00 ± 0.22 | 24.89 ± 8.93 | 1.35 ± 0.31 | 0.14 ± 0.03 |
2016–2017 | 1.86 ± 0.70 | 6.10 ± 1.08 | 821.50 ± 125.76 | 1.62 ± 0.40 | 41.21 ± 12.89 | 1.65 ± 0.69 | 0.09 ± 0.02 |
2017–2018 | 2.67 ± 0.93 | 6.51 ± 0.98 | 200.79 ± 29.92 | 1.92 ± 0.20 | 147.32 ± 20.53 | 2.18 ± 0.59 | 0.19 ± 0.05 |
2018–2019 | 11.01 ± 3.62 | 5.46 ± 0.66 | 635.18 ± 35.33 | 1.26 ± 0.20 | 303.27 ± 58.31 | 3.49 ± 0.77 | 0.19 ± 0.04 |
2019–2020 | 3.94 ± 0.46 | 3.62 ± 0.35 | 239.65 ± 25.84 | 1.19 ± 0.12 | 127.63 ± 11.26 | 1.81 ± 0.26 | 0.23 ± 0.04 |