Table 2 Evaluation of whorl application of sand mixed insecticides against Spodoptera frugiperda- 2021–2022
Treatment | % Reduction no. of larvae/thirty plants | % General mean reduction | |||
|---|---|---|---|---|---|
a T1 | b T2 | ||||
c 7 DAT | d 14 DAT | c 7 DAT | d 14 DAT | ||
Season 2021 | |||||
Spinosad | 82.68 (2.37)bc | 84.80 (2.44)c | 72.38 (1.54)c | 74.51 (3.06)b | 78.59 |
Lufenuron | 67.77 ( 2.57)d | 73.87 (2.90)de | 60.81 (2.53)d | 61.86 (3.97)c | 66.08 |
Buprofezin | 69.19 (4.14)d | 76.54 (3.13)d | 61.56 (2.15)d | 65.60 (4.64)c | 68.22 |
Profenofos | 63.00 (2.48)de | 56.17 (2.88)f | 51.97 (1.95)e | 49.23 (2.30)d | 55.09 |
Chlorantraniliprole | 100.0 (0.57)a | 100.0 (0.54)a | 90.00 (2.48)a | 84.77 (2.71)a | 93.69 |
Lambda-cyhalothrin | 50.62 (2.70)f | 53.86 (3.29)fg | 44.94 (3.56)f | 47.45 (2.12)d | 49.22 |
Emamectin benzoate | 85.18 (3.00)b | 90.27 (2.40)b | 81.11 (2.10)b | 82.39 (4.17)a | 84.74 |
Season 2022 | |||||
Spinosad | 83.71 (2.04)b | 86.25 (2.97)c | 73.94 (1.63)b | 75.55 (2.04)b | 79.86 |
Lufenuron | 66.97 ( 2.18)c | 73.06 (3.34)de | 59.83 (3.53)cd | 60.81 (2.79)c | 65.17 |
Buprofezin | 68.91 (2.34)c | 75.88 (3.51)d | 60.88 (2.04)c | 64.94 (4.23)c | 67.65 |
Profenofos | 62.04 (2.75)cd | 55.63 (4.16)f | 50.66 (1.65)de | 47.64 (2.53)d | 53.99 |
Chlorantraniliprole | 100.0 (0.57)a | 100.0 (0.54)a | 83.37 (2.44)a | 83.00 (1.91)a | 91.59 |
Lambda-cyhalothrin | 49.44 (2.18)e | 52.57 (3.93)fg | 43.65 (2.44)f | 46.42 (2.05)d | 48.02 |
Emamectin benzoate | 86.08 (3.76)b | 91.57 (2.09)b | 82.50 (1.57)a | 82.97 (3.26)a | 85.78 |