Patterns of tsetse abundance and trypanosome infection rates among habitats of surveyed villages in Maasai steppe of northern Tanzania

Table 4 Age structure of trapped and infected tsetse sampled in different habitats during the dry and wet season

Habitats	Wing fray categories, n (%)						Total	Age MWFV	Estimated age (days)
Trapped flies	1	2	3	4	5	6
Ecotone	140 (10)	3 (5)	1 (3)	2 (8)	1 (7)	0 (0)	147	1.1	Under 11
Riverine	139 (55)	64 (96)	30 (97)	24 (92)	14 (93)	7 (100)	878	1.4	Under 11
Open woodland	277 (21)	0 (0)	0 (0)	0 (0)	0 (0)	0 (0)	277	1.0	Under 11
Swampy	181 (14)	0 (0)	0 (0)	0 (0)	0 (0)	0 (0)	181	1.0	Under 11
Total	1337	67	31	26	15	7	1483
Infected flies
Ecotone	29 (34)	0 (0)	0 (0)	0 (0)	0 (0)	0 (0)	29	1.0	13 days
Riverine	43 (50)	6 (100)	5 (80)	3 (100)	4 (100)	3 (100)	64	2.0	Under 11
Open woodland	10 (12)	0 (0)	1 (20)	0 (0)	0 (0)	0 (0)	11	1.2	Under 11
Swampy	3 (4)	0 (0)	0 (0)	0 (0)	0 (0)	0 (0)	3	1.0	Under 11
Total	85	6	6	3	4	3	107

The numbers in brackets present percentage in the wingfrey category while the numbers outside the brackets present the number of tsetse flies in the wing free category. MWFV means mean wing fray Value

ISSN: 2049-9957