Table 4.
Activity of Y. entomophaga MH96 culture or sonicated filtrates to C. zealandica larvae at various culture temperatures on day 5
| Culture or filtrate and strain | Culture temp (°C) | Mortality (n)a |
Significance level of the differenceb | |
|---|---|---|---|---|
| Treated | Control | |||
| Sonicated filtrate | ||||
| MH96 | 25 | 34 (36) | 0 (36) | <0.000 (0.4930) |
| 30 | 36 (36) | 0 (36) | <0.000 (2.2 × 10−16) | |
| 37 | 31 (36) | 0 (36) | <0.000 (3.4 × 10−15) | |
| ΔTC strain | 25 | 0 (36) | 0 (36) | NS (1.000) |
| 30 | 1 (36) | 0 (36) | NS (1.000) | |
| 37 | 0 (36) | 0 (36) | NS (1.000) | |
| Culture supernatant | ||||
| MH96 | 25 | 36 (36) | 0 (36) | <0.000 (2.2 × 10−16) |
| 30 | 1 (36) | 0 (36) | NS (1.000) | |
| 37 | 0 (36) | 0 (36) | 0 (36) | |
| ΔTC strain | 25 | 0 (36) | 0 (36) | NS (1.000) |
| 30 | 0 (36) | 0 (36) | NS (1.000) | |
| 37 | 0 (36) | 0 (36) | NS (1.000) | |
a
Mortality is given as the number of larvae killed. n is the sample size in the treated group or in the negative-control group. The negative Y. entomophaga ΔTC culture supernatant was prepared as Y. entomophaga MH96 was.
b
<0.000 significant difference at a 0.1% level (= 99.9% confidence level). NS, not significant.