Towards estimating the economic cost of invasive alien species to African crop and livestock production

Table 3 The absolute and relative contribution of labour, yield loss, lost livestock derived income and research to the annual cost of IAS to African agriculture in billions USD

	USD	Percentage
Yield loss	29.06	44.31
Weeding cost	36.34	55.42
Lost livestock derived income	0.17	0.26
Research costs	0.00	0.00
Total	65.58

ISSN: 2662-4044