FALL ARMYWORM OUTBREAKS IN ASIA: ANALYZING THE STRATEGIES TO CONTROL

J. Y. Joaty, Md. Mamunur Rahman, Md. Ruhul Amin, Md. Arifur Rahman Khan
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Abstract

Fall armyworm (Spodoptera frugiperda) is a Lepidopteran moth of Noctuidae family. Due to its polyphagous characteristic with a large host range, strong migration ability, high fecundity (average egg production per female is about 1500) and lack of diapause has already contributed to its invasiveness in America and Africa. Recently it has been introduced in Asia in the year 2018. Though it has been only around three years of Fall armyworm (FAW) introduction, it has already spread into many Asian countries and on the way to cause havoc. Though it can infest many crops, its main target and maximum yield loss has occurred in case of Maize. In America and Africa, farmers are already well known to this pest and have adapted themselves to reduce crop loss to some extent by undertaking several management options. As this pest is completely new to Asia, farmers do not know much about its biology, nature of damage and control measures. And their misdiagnosis of the pest leads to panic and increased crop loss. Therefore, it is very important to increase awareness among the farmers to identify its attack on the right time to take suitable control measures as well as preventive measures for upcoming cropping seasons. Some of the cultural, mechanical, biological and chemical control measures those were effective in reducing its infestation outside Asia, has also found to be effective inside Asia. Collaboration of these control measures according to the field condition is main concern for the cultivators. But the integrated pest management option alone can also help to keep FAW population much below economic injury level and prevent its invasiveness as a tool of sustainable management for ensuring food security.
亚洲秋粘虫疫情防控策略分析
秋粘虫(Spodoptera frugiperda)是夜蛾科鳞翅目飞蛾。由于其多食性、寄主范围大、迁徙能力强、繁殖力高(每只雌性平均产卵约1500枚)和缺乏滞育的特点,已经成为其入侵美洲和非洲的原因之一。最近,它已于2018年在亚洲推出。虽然秋粘虫(FAW)传入只有三年左右的时间,但它已经蔓延到许多亚洲国家,并正在造成严重破坏。虽然它可以侵染许多作物,但其主要目标和最大的产量损失发生在玉米上。在美洲和非洲,农民对这种有害生物已经很熟悉,并已采取若干管理办法,在一定程度上减少作物损失。由于这种害虫对亚洲来说是全新的,农民对其生物学、危害性质和控制措施都不太了解。他们对害虫的误诊导致了恐慌和作物损失的增加。因此,提高农民的认识,及时发现病害,采取适当的控制措施和预防措施,对即将到来的种植季节非常重要。一些文化、机械、生物和化学控制措施在减少亚洲以外地区的蝗灾方面是有效的,在亚洲内部也是有效的。这些防治措施根据田间条件的协同作用是耕耘者关注的主要问题。但是,单独的害虫综合治理方案也可以帮助将FAW种群数量保持在经济伤害水平以下,并防止其入侵,作为确保粮食安全的可持续管理工具。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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