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草地贪夜蛾(Spodoptera frugiperda (J.E. Smith))对南非林波波省小规模玉米种植农户的影响及其防治策略

Impact of fall armyworm () (J.E. Smith) on small-scale maize farmers and its control strategies in the Limpopo province, South Africa.

作者信息

Makgoba Mankwana C, Tshikhudo Phumudzo P, Nnzeru Livhuwani R, Makhado Rudzani A

机构信息

Centre for Sustainable Agriculture, Rural Development, and Extension, Faculty of Natural and Agricultural Sciences, University of the Free State, Bloemfontein, South Africa.

Department of Agriculture, Land Reform and Rural Development, Directorate Plant Health, Division Pest Risk Analysis, Arcadia, Pretoria, South Africa.

出版信息

Jamba. 2021 Oct 27;13(1):1016. doi: 10.4102/jamba.v13i1.1016. eCollection 2021.

Abstract

South Africa experienced major outbreaks of fall armyworm () (J.E. Smith) (Lepidoptera: Noctuidae), causing direct damage by feeding on both vegetative and reproductive parts of host plant. The study was conducted to determine the level of impact of fall armyworm on small-scale maize famers after the outbreak of fall armyworm and their control strategies at Ga-Mashashane and Mankweng villages in the Limpopo province. Semi-structured questionnaire was designed to gather information on the damage caused by fall armyworm, economic impact on the local market and control measures on fall armyworm. Using a snowball sampling procedure, 63 small-scale maize farmers from the two villages of the Limpopo province, South Africa, were randomly selected for this study. The results showed that all participants could correctly identify the fall armyworm and reported it as the most important maize pest during 2016-2017 cropping season. The maize yield loss experienced by affected farmers in the 2016-2017 cropping season was slightly lower as compared with the 2015-2016 harvest. These farmers used pesticides as a control measure for fall armyworm. Fall armyworm has become a major pest in South Africa and the tackling of fall armyworm by small-scale farmers and averting yield losses is thus critical. This study contributes to the knowledge on fall armyworm management by small-scale farmers, which is essential to enhancing food security.

摘要

南非经历了草地贪夜蛾(学名:Spodoptera frugiperda (J.E. Smith),鳞翅目:夜蛾科)的大规模暴发,其通过取食寄主植物的营养器官和生殖器官造成直接损害。本研究旨在确定草地贪夜蛾暴发后对林波波省加马沙 Shane 村和曼克翁村小规模玉米种植农户的影响程度以及他们的防治策略。设计了半结构化问卷,以收集有关草地贪夜蛾造成的损害、对当地市场的经济影响以及草地贪夜蛾防治措施的信息。采用滚雪球抽样程序,从南非林波波省的两个村庄随机选取了 63 位小规模玉米种植农户参与本研究。结果表明,所有参与者都能正确识别草地贪夜蛾,并将其报告为 2016 - 2017 种植季最重要的玉米害虫。与 2015 - 2016 收获季相比,受影响农户在 2016 - 2017 种植季遭受的玉米产量损失略低。这些农户使用杀虫剂作为草地贪夜蛾的防治措施。草地贪夜蛾已成为南非的主要害虫,因此小规模农户应对草地贪夜蛾并避免产量损失至关重要。本研究有助于了解小规模农户对草地贪夜蛾的管理情况,这对加强粮食安全至关重要。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b870/8603208/db2a114ff544/JAMBA-13-1016-g001.jpg

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