Impact of fall armyworm invasion on household income and food security in Zimbabwe,Food and Energy Security

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Impact of fall armyworm invasion on household income and food security in Zimbabwe
Food and Energy Security ( IF 4.0 ) Pub Date : 2021-03-15 , DOI: 10.1002/fes3.281
Justice A. Tambo ₁ , Monica K. Kansiime ₂ , Ivan Rwomushana ₂ , Idah Mugambi ₂ , Winnie Nunda ₂ , Catherine Mloza Banda ₃ , Shingirayi Nyamutukwa ₄ , Fernadis Makale ₂ , Roger Day ₂

Affiliation

Since 2016, the invasive fall armyworm (FAW), Spodoptera frugiperda, has been one of the most rapidly spreading and highly devastating maize pests across Africa and Asia. Although several studies have estimated the effect of FAW on maize yield, little is known about its impact on broader welfare outcomes. Using data from smallholder maize‐growing households in Zimbabwe, this article aimed to measure the impact of FAW on household income and food security, as well as the extent to which the adoption of a control strategy can help mitigate the negative welfare impacts due to FAW invasion. Regression results showed that households affected by FAW were 12% more likely to experience hunger, as measured by the household hunger scale. A disaggregated analysis indicated that minor FAW infestation did not exert significant impacts on incomes and food security, but severe level of infestation reduced per capita household income by 44% and increased a household's likelihood of experiencing hunger by 17%. We also found that compared to unaffected households, the FAW‐affected households who failed to implement a control strategy had a 50% lower per capita household income, while their counterparts that implemented a control strategy did not suffer a significant income loss. These findings point to the need to promote strategies to prevent high infestation levels of FAW so as to mitigate its detrimental welfare effects.

中文翻译：

秋季粘虫入侵对津巴布韦家庭收入和粮食安全的影响

自2016年以来，入侵性秋天粘虫（FAW），夜蛾（Spodoptera frugiperda）一直是非洲和亚洲传播最迅速，破坏力最强的玉米害虫之一。尽管有几项研究估计了一汽对玉米产量的影响，但对其对更广泛的福利成果的影响知之甚少。本文使用津巴布韦玉米小农户的数据，旨在衡量一汽对家庭收入和粮食安全的影响，以及采取控制策略可以在多大程度上减轻一汽对福利的负面影响入侵。回归结果显示，按家庭饥饿规模衡量，受一汽影响的家庭遭受饥饿的可能性增加12％。分解分析表明，一汽轻微侵染并未对收入和粮食安全产生重大影响，但是严重的侵扰使人均家庭收入减少了44％，使家庭遭受饥饿的可能性增加了17％。我们还发现，与未受影响的家庭相比，未实施控制策略的一汽受影响家庭的人均家庭收入降低了50％，而实施控制策略的同行家庭并未遭受重大的收入损失。这些发现表明，有必要促进策略来防止一汽高水平的侵扰，以减轻其有害的福利影响。而实施控制策略的同行并没有遭受重大的收入损失。这些发现表明，有必要促进策略来防止一汽高水平的侵扰，以减轻其有害的福利影响。而实施控制策略的同行并没有遭受重大的收入损失。这些发现表明，有必要促进策略来防止一汽高水平的侵扰，以减轻其有害的福利影响。

更新日期：2021-05-12

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