Table 4.

Effects of Bacillus sphaericus (Griselesf®) on densities of immature stages of mosquitoes (Anopheles and culicines combined) and percent reduction in open-field settings during three subsequent treatments (T) with varying doses

Day	Average number per dip												Percentage reduction
	Early instars				Late instars				Pupae				Early instars			Late instars			Pupae
	C	T1	T2	T3	C	T1	T2	T3	C	T1	T2	T3	T1	T2	T3	T1	T2	T3	T1	T2	T3
0a	1.8	1.5	3.2	1.8	2.1	3.5	4.1	4.1	1.2	2.2	2.4	3.8	–	–	–	–	–	–	–	–	–
1	1.5	0.0	0	0	1.6	0	0	0.1	3.2	2.6	1.6	3.8	100	100	100	100	100	96.8	55.7	75.0	62.5
2	4.1	0.7	0.6	0	0.8	0	0	0	2.8	0	0	0	79.5	91.8	100	100	100	100	100	100	100
3	2.0	0.6	1.5	1.5	0.5	0.6	0.8	0.1	2.0	0.4	0	0	64.0	57.8	25.0	28.0	18.0	89.8	89.1	100	100
4	4.6	1.0	1.4	3.1	0.6	1.5	0	0	3.4	0	0	0.2	73.9	82.9	32.6	0	100	100	100	100	98.1
5	3.2	1.6	1.3	1.6	1.4	0.5	1.2	0.9	0.4	0	0	0	40.0	51.3	50.0	78.6	48.6	67.1	100	100	100
6	2.4	1.2	0.5	0.4	2.3	0.3	1.2	1.0	1.0	0	0	1.6	40.0	88.3	83.3	92.2	73.3	77.7	100	100	100
7	0.5	0.4	0.5	0.9	0.2	0.5	0.6	0.8	1.6	0.2	0	0	4.0	43.8	0	0	0	0	93.2	100	100
8	1.3	1.7	0.3	0.8	0.2	0.1	0	0.3	0.8	0.2	0	0.4	0	87.0	38.5	70.0	100	23.2	86.4	100	84.2
9	0.3	0.3	0.4	0.7	0.4	0.4	0.1	0.5	2.8	2.2	1.6	2.0	0	25.0	0	40.0	87.2	36.0	57.2	71.4	77.4
10	0.3	0.5	0.2	1.1	0.1	0.3	0.8	0.4	2.2	3.4	1.2	1.4	0	62.5	0	0	0	0	15.7	72.7	79.9

Abbreviations: T1, minimum label rate (5 ml/m²); T2, maximum label rate (10 ml/m²); T3, twice the maximum label rate (20 ml/m²); C, control.

^aDay of application.