Table 1.
Percentage survival of mosquitoes following spray application of conidia retrieved from cloths that had been left under natural extra-domicile conditions for periods of 2 to 30 days
| Period exposed to natural conditions (days) | % end point survival | χ 2 (df = 1) | p |
|---|---|---|---|
| 2 |
28.8 |
31.01 |
<0.0001* |
| 6 |
41.1 |
16.5 |
<0.0001* |
| 12 |
48.8 |
9.01 |
0.0027* |
| 18 |
60 |
5.26 |
0.0218* |
| 24 |
70 |
0.578 |
0.4471 |
| 30 |
70 |
0.0004 |
0.9894 |
| CONTROL$ | 76.6 | - | - |
Gehan-Breslow-Wilcoxon test for pair-wise survival curve comparisons between the period the black cloths were exposed to natural conditions and control survival.
*significantly different to control survival at the 5% level.
$The result for the controls was the pooled value for control insects at each of the six time points and three repetitions.