Table 2. Cost-effectiveness of using targets and cattle to control tsetse.

Start of targets relative to cattle	Daily mortality at targets (%)	Days to stability	Costs for stabilisation ($)
			Cattle	Targets	Total
180 days ahead	2.5	494	719	116	835
	5.0	259	388	152	540
0 days ahead	2.5	559	845	96	941
	5.0	314	504	108	612
180 days later	2.5	696	1092	89	1181
	5.0	469	781	99	880

For each row, the days required to stabilise the tsetse distribution in Scenario L, and the costs of stabilisation are shown. The simulations assumed that insecticide-treated cattle, with a daily mortality of 10%, were deployed in all parts of the operational area, except for a central section 7 km wide where targets imposing various mortalities were started at various times in relation to the start of cattle treatments. Days to stability are counted from the start of cattle treatments.