Estimation of the Potential Infestation Area of Newly-invaded Fall Armyworm Spodoptera Frugiperda in the Yangtze River Valley of China

Wu, Qiong; He, Limei; Shen, Xiujing; Jiang, Yuying; Liu, Jie; Hu, Gao; Wu, Kongming

doi:10.3390/insects10090298

Cited by 77 publications

(67 citation statements)

References 35 publications

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“…The strong migration capacity of FAW adults has led to its recently rapid and wide spread throughout Africa, the Middle East, and several Asian countries including India, Bangladesh, Sri Lanka, Thailand, Yemen, Myanmar and China since their first appearance in west Africa in early 2016 (Goergen et al, 2016;Mallapur et al, 2018;CABI, 2019;Farmer, 2019). In January 2019, FAW was first reported in Yunnan Province of China (Jing et al, 2019), and then rapidly spread to 13 provinces and cities (Yunnan, Guizhou, Sichuan, Chongqing, Guangxi, Guangdong, Hainan, Hunan, Hubei, Fujian, Zhejiang, Jiangxi and Henan) of China within only four months (Wu et al, 2019). With the fast dispersal rates and available suitable habitats in the southwest, central and northern regions of China, the pest had already attacked 1,366 counties (cities and districts) across 24 provinces of China until August 17, 2019 (Xiao et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Genomic and transcriptomic analysis unveils population evolution and development of pesticide resistance in fall armyworm Spodoptera frugiperda

et al. 2020

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The fall armyworm (FAW), Spodoptera frugiperda, is a destructive pest native to America and has recently become an invasive insect pest in China. Because of its rapid spread and great risks in China, understanding of FAW genetic background and pesticide resistance is urgent and essential to develop effective management strategies. Here, we assembled a chromosome-level genome of a male FAW (SFynMstLFR) and compared re-sequencing results of the populations from America, Africa, and China. Strain identification of 163 individuals collected from America, Africa and China showed that both C and R strains were found in the American populations, while only C strain was found in the Chinese and African populations. Moreover, population genomics analysis showed that populations from Africa and China have close relationship with significantly genetic differentiation from American populations. Taken together, FAWs invaded into China were most likely originated from Africa. Comparative genomics analysis displayed that the cytochrome p450 gene family is extremely expanded to 425 members in FAW, of which 283 genes are specific to FAW. Treatments of Chinese populations with twenty-three pesticides showed the variant patterns of transcriptome profiles, and several detoxification genes such as AOX, UGT and GST specially responded to the pesticides. These findings will be useful in developing effective strategies for management of FAW in China and other invaded areas.

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Section: Introductionmentioning

confidence: 99%

Genomic and transcriptomic analysis unveils population evolution and development of pesticide resistance in fall armyworm Spodoptera frugiperda

et al. 2020

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“…The origin of S. frugiperda populations in Korea has not been identified as of 2019. Based on meteorological predictions, they might migrate from some part of China and East Asia to Korea at least twice (end of May to end of June and July) (Li et al, 2020;Wu et al, 2019).…”

Section: Disscussionmentioning

confidence: 99%

Development of a simple and accurate molecular tool for Spodoptera frugiperda species identification using LAMP

Kim

Nam

Kwon

et al. 2020

Preprint

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The fall armyworm, Spodoptera frugiperda is a native species in the Americas. However, nowadays it is one of the most serious invasive lepidopteran pests in African and Asian countries. S. frugiperda has been spread very quickly after the first outbreak was reported in many countries. Based on mt genome sequence alignment, S. frugiperda specific sequence region was identified in tRNAs coding region between NADH dehydrogenase, ND3 and ND5.By using this unique region, species diagnostic primers were designed and applied in LAMP (lamp loop mediated isothermal amplification) assay as well as conventional PCR to identify the field-collected samples of S. frugiperda. Optimal incubation condition of LAMP assay was 61℃ for 90 minutes with 4 LAMP primers, and additional loop primer increased the amplification efficiency. Also, wide range of DNA concentration responded in LAMP assay and minimum detectable DNA concentration was 10 pg. This LAMP assay was also applied in DNA releasing technique from larval and adult sample, without DNA extraction, 95℃ incubation for five minutes of the tissue sample. This new molecular diagnostic method is easy to use and accurate. It possibly applied in intensive field monitoring of S. frugiperda and its ecological studies.

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“…The fall armyworm (FAW), Spodoptera frugiperda (J. E. Smith), is the most important insect pest of corn crops in Mexico (Blanco et al, 2014), but it is also widely distributed from north of the USA to north of Argentina (Prowell et al, 2004;Hardke et al, 2011;Pashley, 1986). However, recently, FAW has become a harmful, invasive pest of corn in sub-Saharan Africa (Goergen et al, 2016;Stokstad, 2017) and Asia (Wu et al, 2019;Padhee & Prasanna, 2019).…”

Section: Introductionmentioning

confidence: 99%

A pheromone lure for catching fall armyworm males (Lepidoptera: Noctuidae) in Mexico

Cruz‐Esteban

Rojas

Malo

2020

AZM

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2020) A pheromone lure for catching fall armyworm males (Lepidoptera: Noctuidae) in Mexico. Acta Zoológica Mexicana (nueva serie), 36, 1-11.ABSTRACT. Moth sex pheromones can be used for monitoring or for control (e.g., mass trapping or mating disruption) of agricultural pests. However, pheromone application in field conditions requires that all crucial pheromonal components are included and optimized in a pheromone lure. In this study, we optimized a sex pheromone lure for monitoring Mexican populations from the fall armyworm (FAW), Spodoptera frugiperda Smith. In corn fields, we evaluated the activity of single compounds, three binary blends, and one tertiary blend of (Z)-7-dodecenyl acetate (Z7-12:OAc), (Z)-9-tetradecenyl acetate (Z9-14:OAc), and (Z)-11-hexadecenyl acetate (Z11-16:OAc). The results showed that the traps baited with a binary blend of Z7-12:Ac + Z9-14:Ac captured significantly more S. frugiperda males than single compounds, other binary blends or the tertiary blend. The absence of Z11-16:OAc in the blends did not significantly affect the capture of males, indicating that this compound is non-essential for male attraction in the field. We demonstrated that the dose of the binary blend of Z7-12:OAc and Z9-14:OAc influenced the catch rate of FAW males. The pheromone lure optimized in this study can be useful for capturing S. frugiperda in Mexico. Cruz-Esteban, S., Rojas, J. C., Malo, E. A. (2020) Feromona para la captura de machos del gusano cogollero (Lepidoptera: Noctuidae) en México. Acta Zoológica Mexicana (nueva serie), 36, 1-11. https://doi.org/10.21829/azm.2020.3612271 RESUMEN. Las feromonas sexuales de palomillas se pueden usar para monitoreo o control de plagas agrícolas (por ejemplo, trampeo masivo o interrupción del apareamiento). Sin embargo, la aplicación de feromonas en condiciones de campo requiere que los componentes feromonales activos estén incluidos y optimizados como un cebo feromonal. En este estudio, preparamos un señuelo con la feromona sexual para Cruz-Esteban et al.: Feromona sexual para atracción y captura de Spodoptera frugiperda 2 monitorear las poblaciones mexicanas del gusano cogollero, Spodoptera frugiperda (J. E. Smith).Evaluamos la actividad de compuestos individuales, tres mezclas binarias y una mezcla terciaria de (Z)-7dodecenil acetato (Z7-12: OAc), (Z)-9-tetradecenil acetato (Z9-14: OAc) y acetato de (Z)-11-hexadecenilo (Z11-16: OAc), en cultivos de maíz. Los resultados mostraron que las trampas cebadas con una mezcla binaria de Z7-12: Ac + Z9-14: Ac capturaron significativamente más machos de S. frugiperda que los compuestos individuales, y que las otras mezclas binarias o la mezcla terciaria. La ausencia de Z11-16: OAc en la mezcla no afectó significativamente la captura de machos, lo que indica que este compuesto no es esencial para la atracción de machos en el campo. Encontramos que la dosis de la mezcla binaria de Z7-12:OAc y Z9-14:OAc influyó en la tasa de captura de machos del gusano cogollero. El señuelo de feromona optimizado en este estudio puede ser út...

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Estimation of the Potential Infestation Area of Newly-invaded Fall Armyworm Spodoptera Frugiperda in the Yangtze River Valley of China

Cited by 77 publications

References 35 publications

Genomic and transcriptomic analysis unveils population evolution and development of pesticide resistance in fall armyworm Spodoptera frugiperda

Genomic and transcriptomic analysis unveils population evolution and development of pesticide resistance in fall armyworm Spodoptera frugiperda

Development of a simple and accurate molecular tool for Spodoptera frugiperda species identification using LAMP

A pheromone lure for catching fall armyworm males (Lepidoptera: Noctuidae) in Mexico

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