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Economic impacts of invasive alien species on African smallholder livelihoods

Published: September, 2017

Journal article

Corin Pratt, Kate Constantine, Sean T Murphy

In developing countries, invasive alien species (IAS) threaten smallholder farmer production and the food security of subsistence growers, but economic impacts are widely under-reported. Here, the economic impacts of IAS that threaten smallholder mixed maize farming in eastern Africa are presented. Maize is important for most smallholders and is commonly grown with horticultural crops and other cereals which collectively provide nutrition and income. These crops are also important for national economies. Estimates of the economic impacts of five major IAS: Chilo partellus, Maize Lethal Necrosis Disease, Parthenium hysterophorus, Liriomyza spp. and Tuta absoluta on mixed maize smallholders in six countries gave current combined annual losses of US$0.9–1.1 billion; and future annual losses (next 5–10 years) of US$1.0–1.2 billion.

Economic impacts of invasive alien species on African smallholder livelihoods

DOI https://doi.org/10.1016/j.gfs.2017.01.011

Type Journal article

Published in A paper that analyses the threat that invasive species pose to agriculture and smallholder farmers in East Africa. In: Global Food Security.

Language English

Year 2017