Table 2 Larval population of H. armigera in different treatment combinations in berseem during flowering stage
Treatments | H. armigera population/m row length in Egyptian clover | Pooled mean | Percent reduction | ||||
|---|---|---|---|---|---|---|---|
1st week March | 2nd week March | 3rd week March | 4th week March | 1st week April | |||
T1 | 7.0 (2.82) | 10.25 (3.34) | 6.5 (2.73) | 4.0 (2.23) | 3.0 (1.97) | 6.15 (2.63) | 52.50 |
T2 | 4.5 (2.33) | 5.5 (2.54) | 5.5 (2.54) | 2.75 (1.91) | 1.75 (1.64) | 4.0 (2.20) | 69.11 |
T3 | 9.75 (3.27) | 12 (3.6) | 9.25 (3.19) | 6.0 (2.41) | 3.25 (2.05) | 8.05 (2.96) | 38.0 |
T4 | 5.0 (2.44) | 8.0 (2.99) | 7.25 (2.86) | 4.75 (2.49) | 2.75 (1.92) | 5.55 (2.53) | 57.14 |
T5 | 4.75 (2.39) | 6.0 (2.64) | 5.75 (2.58) | 3.0 (2.43) | 1.5 (1.57) | 4.2 (2.24) | 67 |
T6 | 3.0 (1.99) | 3.5 (2.10) | 5.0 (2.44) | 1.5 (1.99) | 0.75 (1.28) | 2.75 (1.89) | 78 |
T7 | 4.0 (2.23) | 6.75 (2.78) | 7.25 (2.86) | 3.5 (1.72) | 2.75 (1.91) | 4.85 (2.39) | 62.5 |
T8 | 13 (3.73) | 16.75 (4.20) | 18.25 (4.38) | 12.75 (3.70) | 4.0 (2.86) | 12.95 (3.65) | – |
CD (p = 0.05) | 0.32 | 0.31 | 0.29 | 0.38 | 0.36 | 0.30 | |