Table 3 Evaluation of whorl application of spray 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 | 70.75 (2.09)b | 77.00 (1.48)b | 65.40 (2.90)b | 68.19 (2.39)c | 70.34 |
Lufenuron | 63.54 ( 2.22)c | 70.45 (3.77)bc | 54.04 (2.19)c | 57.11 (4.80)d | 61.29 |
Buprofezin | 63.61 (4.01)c | 71.58 (2.00)c | 55.12 (4.77)c | 58.16 (4.63)d | 62.12 |
Profenofos | 48.85 (1.93)d | 46.41 (2.75)d | 44.65 (1.97)d | 41.53 (2.66)e | 45.36 |
Chlorantraniliprole | 92.47 (2.49)a | 84.71 (2.73)a | 81.00 (1.08)a | 79.27 (2.26)a | 84.38 |
Lambda-cyhalothrin | 34.87 (3.48)e | 37.15 (2.56)e | 30.65 (1.67)e | 32.75 (2.71)f | 33.86 |
Emamectin benzoate | 71.40 (3.52)b | 77.57 (2.99)b | 68.42 (2.55)b | 74.61 (3.70)ab | 73.00 |
Season 2022 | |||||
Spinosad | 73.16 (2.49)bc | 77.77 (2.55)b | 66.00 (2.50)c | 68.71 (1.90)c | 71.41 |
Lufenuron | 62.61 ( 2.02)d | 69.00 (1.96)c | 53.12 (2.74)d | 55.28 (1.69)d | 60.00 |
Buprofezin | 62.86 (2.60)d | 70.74 (2.06)bc | 54.49 (4.06)d | 57.86 (2.21)d | 61.49 |
Profenofos | 47.57 (3.14)e | 45.74 (1.67)d | 43.23 (3.81)e | 40.18 (2.23)e | 44.18 |
Chlorantraniliprole | 91.50 (3.20)a | 83.13 (4.10)a | 80.23 (1.54)a | 78.44 (2.15)a | 83.33 |
Lambda-cyhalothrin | 33.40 (3.47)f | 36.00 (3.39)e | 29.77 (1.44)f | 31.72 (2.00)f | 32.72 |
Emamectin benzoate | 74.46 (2.84)b | 78.66 (2.49)b | 70.44 (2.05)b | 73.78 (4.25)ab | 74.34 |