Fall armyworm: impacts and implications for Africa.
Fall armyworm: impacts and implications for Africa.
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DOI：
10.1564/v28_oct_02
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发表时间：
2017-01-01
影响因子：
--
通讯作者：
Witt, A.
中科院分区：
文献类型：
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作者：
Day, R.;Abrahams, P.;Witt, A.
秋粘虫（Spodoptera frugiperda）在非洲的出现引起了极大的恐慌。英国国际发展部委托CABI编制了一份证据说明，该说明于2017年9月由CABI发布。本文是证据说明的摘要，旨在评估如果不加控制，一汽在非洲的潜在影响，并建议和优先考虑控制方案。得出的结论是，非洲的一汽有可能造成玉米产量损失，每年830万至2060万吨，在没有任何控制方法的情况下，仅在12个非洲玉米生产国。这相当于这些国家3年期玉米平均年产量的21-53%。在未来几个种植季节内，FAW将在撒哈拉以南非洲大陆的所有适宜生境中传播。北方非洲和马达加斯加也处于危险之中。控制一汽需要综合虫害管理方法。立即提出的建议包括：（i）开展提高认识运动，宣传粮农组织的症状、早期发现和控制，包括有益的农艺做法;（ii）在各国编制和通报一份推荐的、受管制的农药和生物农药及其适当使用方法清单。还应立即开始工作，（i）评估首选作物品种对FAW的抗性或耐受性，（ii）从美洲引进经典生物防治剂。
The appearance of fall armyworm (FAW; Spodoptera frugiperda) in Africa has caused much consternation. The UK Department for International Development commissioned CABI to compile an evidence note, which was published by CABI in September 2017. This paper is a summary of the evidence note, which aimed to assess the potential impact of FAW in Africa if left uncontrolled, and recommend and prioritise control options. It is concluded that FAW in Africa has the potential to cause maize yield losses ranging from 8.3 to 20.6 m 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% of the annual production of maize averaged over a 3-year period in these countries. FAW 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. Control of FAW requires an integrated pest management approach. Immediate recommendations include (i) awareness raising campaigns on FAW symptoms, early detection and control, including beneficial agronomic practices, (ii) national preparation and communication of a list of recommended, regulated pesticides and biopesticides and their appropriate application methods. Work should also start immediately to (i) assess preferred crop varieties for resistance or tolerance to FAW, and (ii) introduce classical biological control agents from the Americas.