Journal
GLOBAL FOOD SECURITY-AGRICULTURE POLICY ECONOMICS AND ENVIRONMENT
Volume 14, Issue -, Pages 31-37Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.gfs.2017.01.011
Keywords
Invasive alien species; Economic losses; Smallholder; Agriculture; Eastern Africa; Livelihoods
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Funding
- CABI Development Fund - Australian Centre for International Agricultural Research, Australia
- UK's Department for International Development
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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.
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