Table 5 Densities of natural enemies in different weed management treatments.
Weed management treatments | Densities of natural enemies | ||
---|---|---|---|
Coccinella septompunctata (no. m−2) | Coccinella undecimpunctata (no. m−2) | Orius niger (no. m−2) | |
Weed-freea | 3.3 ± 0.4 e | 2.1 ± 0.3 e | 5.6 ± 0.8 d |
Trifluralin | 10.6 ± 0.9 b | 6.3 ± 0.2 c | 9.2 ± 1.2 c |
WSM | 5.3 ± 0.6 d | 3.9 ± 0.2 d | 8.4 ± 1.3 c |
FLM | 11.1 ± 0.8 b | 8.4 ± 0.8 b | 14.9 ± 1.4 b |
VLM | 10.5 ± 1.0 b | 8.9 ± 0.9 b | 16.9 ± 1.1 b |
CLM | 14.4 ± 1.4 a | 11.3 ± 1.1 a | 21.1 ± 2.1 a |
OHW | 8.1 ± 0.7 c | 7.9 ± 0.7 b | 15.6 ± 1.3 b |
Weed-infested | 8.3 ± 0.8 c | 6.2 ± 0.3 c | 8.9 ± 1.4 c |