Predicting the potential distribution of the fall armyworm Spodoptera frugiperda (J.E. Smith) under climate change in China

Jiang, Chengyao; Zhang, Xueyan; Xie, Weijun; Wang, Rulin; Feng, Chuanhong; Ma, Li; Li, Qing; Qunfang, Yang; Wang, Haijian

doi:10.1016/j.gecco.2021.e01994

Cited by 21 publications

(18 citation statements)

References 54 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Smith) (FAW)] (Lepidoptera: nocturnal) is one of the most important pests of maize in the world. It has a serious effect on the yield and quality of maize. − The larvae like to drill into the whorls and cobs of maize plants and feed on young leaves, filaments, and grains . According to previous research, an effective method for controlling FAW was by broadcasting insecticidal granules into maize leaf whorls.…”

Section: Introductionmentioning

confidence: 99%

Distribution of Emamectin Benzoate Granules in Maize Plants by Broadcasting into Maize Leaf Whorls

et al. 2023

View full text Add to dashboard Cite

Good control effects on fall armyworm (FAW) can be obtained by broadcasting emamectin benzoate (EB) granules into maize leaf whorls. However, the distribution of EB in maize plants is not clear. In this study, EB granules were prepared by the rotating granulation method, and the granules were characterized using a Fourier transform infrared spectrometer. The behavior of EB granules in water was observed using a microscope, and in vitro release of EB from granules was also studied. A method for the determination of EB in maize plants, old leaves, grains, and cobs was established by using ultra-performance liquid chromatography-tandem mass spectrometry. The results showed that EB was loaded in granules successfully, and the granules disintegrated slowly in water, so the release of granules could be regulated using various water contents. The prepared EB granules were qualified and stable. The field experiment showed that the concentration of EB in maize leaf whorls could be maintained above 0.23 mg·kg–1 within 3 days after broadcasting EB granules. This ensured that FAW could be killed in a short time. Then, EB gradually transferred to the old leaves. After 21 days of application, the content of EB in the old leaves was 0.07 mg·kg–1, which has long-time control effects on FAW. The control effects of the three doses of granules against Spodoptera frugiperda were higher than 78% after 14 days of application. At the tested dosage, no phytotoxicity to crops was observed. At harvest, neither the maize grain nor the cobs had EB content. New controlled formulations to S. frugiperda were developed and will be suitable for application in mountainous areas where the lack of water resources is a factor.

show abstract

Section: Introductionmentioning

confidence: 99%

Distribution of Emamectin Benzoate Granules in Maize Plants by Broadcasting into Maize Leaf Whorls

et al. 2023

View full text Add to dashboard Cite

show abstract

“…FAW started invading agricultural fields in China in January 2019. During spring and summer, FAW entered the Yangtze River Basin, Yellow River Basin, and northeast regions in China via northward seasonal monsoons (Jiang et al, 2019; Wu, 2020).…”

Section: Introductionmentioning

confidence: 99%

“…In the absence of its preferred hosts, the C‐strain also feeds on cabbage, potato, and other plants (Pashley & Martin, 1987; Liu et al, 2019; Zhao et al, 2019). When FAW first invaded the crop fields of Shanxi province, China, in 2019, a range of varieties of coarse cereals, that is, cereal grains other than wheat and rice, were planted (Jiang et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Preference and performance of the fall armyworm, Spodoptera frugiperda, on six cereal crop species

Zhang

Zhuang

et al. 2023

Entomologia Exp Applicata

View full text Add to dashboard Cite

The fall armyworm (FAW), Spodoptera frugiperda (JE Smith) (Lepidoptera: Noctuidae), is a major migratory invasive pest that poses a severe threat to agricultural production and food security in China. In this study, we estimated the effects of six cereal crops on the development, survival, and fecundity of FAW using the age‐stage, two‐sex life table: maize (Zea mays L.), wheat (Triticum aestivum L.), sorghum [Sorghum bicolor (L.) Moench], oats (Avena sativa L.), millet (species, authority) (all Poaceae), and quinoa (Chenopodium quinoa Willd.) (Amaranthaceae). In a six‐choice test using detached leaf material, FAW larvae preferentially occurred on maize, followed by sorghum, within 6–24 h, and occurred the least on millet and quinoa. After 24 h, they had consumed the most leaf material from sorghum and maize, and the least from quinoa. In no‐choice tests using detached leaf material, they performed best on maize in terms of development (e.g., short development time), survival (e.g., high larval survival and pupation rate), and fecundity (e.g., high number of oviposition days and number of eggs laid per female), resulting in the highest predicted population growth (e.g., high intrinsic rate of increase and net reproductive rate). Although maize was found to be the most appropriate host plant, FAW was able to complete its life cycle on all six tested cereals. Our findings can help in predicting population dynamics and deepening our understanding of the potential damage incurred by FAW infestation, especially in regions under maize cultivation.

show abstract

“…The fall armyworm (FAW), Spodoptera frugiperda (Smith), originating from tropical and subtropical areas of the Americas [ 1 , 2 ], is a global invasive migratory pest [ 3 , 4 , 5 ]. The biological and ecological characteristics of the FAW, such as a strong migratory capability, high fecundity, and polyphagous and ecological plasticity, are the main reasons for the invasions and outbreaks in its native and newly invaded areas [ 6 ]. Since 2016, FAWs have invaded and expanded rapidly from the Americas to Africa and Asia.…”

Section: Introductionmentioning

confidence: 99%

The Source Areas and Migratory Pathways of the Fall Armyworm Spodoptera frugiperda (Smith) in Sichuan Province, China

Jiang

Zhang

et al. 2022

Insects

View full text Add to dashboard Cite

The Sichuan Province, located in Southwest China, is one of China’s main maize-producing areas, and is also an important node along the north-south migratory pathways that pests follow within China. After its invasion, the fall armyworm (FAW), Spodoptera frugiperda (Smith), was found in 70.81% of all counties in Sichuan. However, FAW source areas and their migratory pathways into Sichuan remain unclear. This study simulated FAW sources and their migratory pathways into Sichuan during 2020 and 2021 using the trajectory simulation platform HYSPLIT with flight behavior parameters. Additionally, the seasonal horizontal wind field was also analyzed with the meteorological graphics processing software GrADS. The results showed that sporadic FAW migration into Sichuan began in April. By May, FAWs were found in much of the Sichuan Basin and moved further north and west in June. Except for year-round breeding areas, FAW sources varied monthly and expanded northward and eastward. The source areas were concentrated in Yunnan, Guizhou, Chongqing, and Myanmar on the western pathway of national migration and also in Vietnam, Guangxi, and Hunan of the eastern pathway. At various times, parts of Sichuan have also served as sources for other parts of Sichuan. FAWs migrated to Sichuan from the source areas via 6 potential pathways, 1 pathway into southwest Sichuan and 5 pathways into the Sichuan basin. The southwestern airflow from the Bay of Bengal, the southeastern airflow controlled by the western Pacific subtropical high, and the local topographically influenced airflow could provide the airflow needed for FAW migration. This work provides new information that can assist the monitoring and warning of the presence of FAW and support integrated management strategies for this pest in Sichuan and throughout China.

show abstract

Predicting the potential distribution of the fall armyworm Spodoptera frugiperda (J.E. Smith) under climate change in China

Cited by 21 publications

References 54 publications

Distribution of Emamectin Benzoate Granules in Maize Plants by Broadcasting into Maize Leaf Whorls

Distribution of Emamectin Benzoate Granules in Maize Plants by Broadcasting into Maize Leaf Whorls

Preference and performance of the fall armyworm, Spodoptera frugiperda, on six cereal crop species

The Source Areas and Migratory Pathways of the Fall Armyworm Spodoptera frugiperda (Smith) in Sichuan Province, China

Contact Info

Product

Resources

About