Decrease of larval and subsequent adult Anopheles sergentii populations following feeding of adult mosquitoes from Bacillus sphaericus-containing attractive sugar baits

Table 1 The proportions of different female An. sergentii age groups from the bacillus sphaericus treated experimental site and from the control site, where treatment did not include B. sphaericus

Site & time	(%) with meconium	*% females in groups classified by the numbers of gonotrophic cycles**
Site & time	(%) with meconium	0*	1	2	3	4	5	6	>7
Control pre- treatment	12.5	34.0	21.0	12.5	11.5	8.5	4.0	3.0	5.5
Control post- treatment	16.0	31.5	27.5	15.5	5.5	6.0	5.0	2.0	7.0
Experimental pre-treatment	15.0	32.5	23.5	18.5	8.0	7.5	2.5	3.5	4.0
Experimental post-treatment	5.5	13.0	16.0	14.0	20.5	12.0	8.5	6.5	9.5

Each of the examined four groups included 200 specimens. Physiological is age was defined by the number of gonotrophic cycles as indicated by ovarian dilatations, or by the presence of meconium tissue, a common marker of newly-emerged mosquitoes.
*Including specimens with meconium.

ISSN: 1756-3305