Table 1. Termite mortality after 11 d when exposed to Metarhizium anisopliae in planar arena.
| Conidia per g of sand† | Average mortality (%) | Hazard ratio of death‡ | Lower and upper 95% C.I. | Pairwise comparison¤ | |
| 0 (Control) | 5.67 | 0.107 | (0.065 | –0.180) | a |
| 2×102 | 5.67 | 0.109 | (0.065 | –0.180) | a |
| 2×103 | 7.33 | 0.140 | (0.089 | –0.221) | ab |
| 5×103 | 13.67 | 0.278 | (0.196 | –0.395) | bc |
| 1×104 | 13.67 | 0.274 | (0.192 | –0.389) | bc |
| 2×104 | 21.33 | 0.455 | (0.337 | –0.614) | cd |
| 3×104 | 30.00 | 0.669 | (0.511 | –0.877) | de |
| 4×104 | 32.33 | 0.713 | (0.547 | –0.929) | de |
| 5×104 | 42.33 | 0.976 | (0.763 | –1.250) | ef |
| 6×104 | 42.33 | 1 (Ref) | N | /A | ef |
| 7×104 | 45.33 | 1.150 | (0.903 | –1.460) | fg |
| 8×104 | 51.00 | 1.260 | (0.994 | –1.590) | fg |
| 9×104 | 57.33 | 1.600 | (1.270 | –2.010) | gh |
| 1.0×105 | 69.00 | 2.170 | (1.740 | –2.710) | hi |
| 1.1×105 | 79.00 | 2.810 | (2.260 | –3.490) | ij |
| 1.2×105 | 87.33 | 3.790 | (3.050 | –4.700) | j |
| 2.0×105 | 95.67 | 5.360 | (4.310 | –6.670) | k |
†
The sand introduced into the arenas was treated with a solution of 0.05% Tween80 containing a suspension of M. anisopliae conidia ranging from 0 to 2.0×105 conidia/g.
‡
The hazard ratio of death is displayed using 6×104 c/g (≈LD50) as a reference point.
¤
Pairwise comparison of survivorship using a Cox proportional-hazards regression model (α = 0.05, modified with the Holm-Bonferroni method). The same letter indicates no significant difference of ratio of death among treatments (300 termites per treatment).