New report reveals cost of Fall Armyworm to farmers in Africa, provides recommendations for control

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CABI has published an ‘evidence note’ report on the invasive Fall Armyworm pest, showing how the caterpillar could cause maize losses costing 12 African countries up to US$6.1 billion per annum, unless control methods are urgently put in place.

Fall Armyworm: Impacts and Implications for Africa was commissioned by the UK’s Department for International Development (DFID) to review current evidence of the potential impact of Fall Armyworm in Africa. The document quantifies the likely economic effect on agricultural sectors in affected countries and regions if left unmanaged, and draws lessons for Africa from experience controlling the pest in the Americas.

Fall Armyworm in Africa has the potential to cause maize yield losses ranging from 8.3 to 20.6 million tonnes per annum, in the absence of any control methods, in just 12 of Africa’s maize-producing countries. This represents a range of 21-53 per cent of the annual production of maize averaged over a three year period in these countries. The value of these losses is estimated at between US$2,481-6,187 million.

According to the report, Fall Armyworm should be expected to spread throughout suitable habitats in mainland sub-Saharan Africa within the next few cropping seasons. Northern Africa and Madagascar are also at risk. This month, 28 countries in Africa have confirmed the pest on their territory, compared to only 12 five months earlier. A further nine countries have conducted or are presently conducting surveys, and either strongly suspect its presence or are awaiting official confirmation.

Dr Roger Day, CABI’s Sanitary and Phytosanitary (SPS) Coordinator, says, “Thanks to DFID’s support, we have been able to assemble exactly the information that many people in Africa are looking for. In the smaller-scale farming systems of central and southern America, Fall Armyworm is controlled using an integrated approach, and this is what is required in Africa.”

Immediate recommendations in the report include raising awareness on Fall Armyworm symptoms, early detection and control, and the creation and communication of a list of recommended, regulated pesticides and biopesticides to control the pest. Work must also start to assess which crop varieties can resist or tolerate Fall Armyworm. In the longer run national policies should promote lower risk control options through short term subsidies and rapid assessment and registration of biopesticides and biological control products.

Fall Armyworm’s rapid spread in Africa

FAW Distribution Maps

Download the 10 page summary of the evidence note here→

Download the full evidence note here→

One thought on “New report reveals cost of Fall Armyworm to farmers in Africa, provides recommendations for control

  1. Cibarani October 7, 2017 / 11:55 am

    Tha full evidence note is really instructive aout the FAW in many way. But we’re really sorry to notice in it that fall army worm presence is still awaiting to be confirmed out here in Mali; while it’s presence has already been documented in many malian village.
    If the confirmationCabi needs to have about the FAW presence in Mali is dependant on official opinion, we think it wil still take a long time for them to confirm it’s presence i here. But from the evidence we collected and even shared with Cabi we’re dead sure the FAW presence is well confirmed out here in Mali.

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