Table 4. Experimental results of larval challenge.

Group	The number of dead larvae at different time points (a/b/c)	Mortality (%)	95% CI (%)
1	7/8/9	35–45	[19–64]
2	13/15/14	65–75	[46–88]
3	17/16/18	80–90	[62–97]
4	20/20/20	100	[83–100]
5	20/20/20	100	[83–100]
6	4/4/5	20–25	[6–44]

Note:

a, b and c represent the number of dead larvae from three repeated experiments.