The fall armyworm (FAW), Spodoptera frugiperda is one of the most damaging crop pests, and it has become major threat to food security many countries. In order monitor possible invasion this pest into China, a searchlight trap was established in March 2018 western Yunnan Province, where served as "first station" for pests that have migrated from Myanmar China. A number suspected FAW moths were captured identified by DNA sequencing. results showed moth first on December 11 formed its...

The fall armyworm (FAW), an invasive pest from the Americas, is rapidly spreading through Old World, and has recently invaded Indochinese Peninsula southern China. In FAW migrates winter-breeding areas in south into summer-breeding throughout North America where it a major of corn. Asian populations are also likely to evolve migrations corn-producing regions eastern China, they will pose serious threat food security.To evaluate invasion risk rate expansion future migratory range was modelled...

Fall armyworm has invaded China and colonized its populations in tropical sub-tropical regions of South since December 2018. Chemical spray been widely used to control the pest, which shall lead resistance evolution. In this research, we collected five pest from Yunnan, Hainan, Tibet, Fujian China, tested their susceptibilities pyrethroid, organophosphorus, oxadiazine, diamide, antibiotics other types insecticides (14 totally) laboratory. Based on susceptible baseline published previous...

The fall armyworm (FAW), native to the Americas, has rapidly invaded whole of Southern China since January 2019. In addition, it can survive and breed in key maize- rice- growing area Yangtze River Valley. Furthermore, this pest is also likely continue infiltrating other cropping regions China, where food security facing a severe threat. To understand potential infestation newly-invaded FAW from Valley, we simulated predicted possible flight pathways range populations using numerical...

The fall armyworm (FAW), Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae), a notorious migratory pest native to tropical and subtropical America, invaded China in December 2018, then spread through 26 provinces (autonomous regions, municipalities) 2019 27 2020, damaging 1.125 1.278 million hectares of crops, respectively. Maize was the most severely affected crop, although wheat other plants were also ruined. Considering biological characteristics, incidence regularity migration...

The fall armyworm (FAW), Spodoptera frugiperda, is a newly invasive, widespread agricultural pest in China. Understanding the suitability of main field crops Chinese system as host for this polyphagous herbivore especially important making control strategy. Here, after FAWs were fed three oil-bearing (oilseed rape, soybean and sunflower) planted China resultant population parameters compared using age-stage, two-sex life table method, survival larvae on was significantly lower than that...

Journal Article Effects of Temperature on the Age-Stage, Two-Sex Life Table Bradysia odoriphaga (Diptera: Sciaridae) Get access Wenxiang Li, Li 1Department Plant Protection, Institute Vegetables and Flowers, Chinese Academy Agricultural Sciences, Beijing 100081, P. R. China.2College Agriculture Forestry Technology, Hebei North University, Zhangjiakou, Hebei, 075000, China.3These authors have equally contributed to this work. Search for other works by author on: Oxford Academic PubMed Google...

Fall armyworm (FAW), Spodoptera frugiperda (J.E. Smith), has become an important pest in Chinese agricultural systems since its invasion on 11 December 2018. After establishment, FAW months the year-round breeding region have main source population migrating to other areas China. Field investigations were conducted tropical and subtropical regions improve understanding of area The results showed that larval density was significantly correlated with seasonal temperature location surveyed....

Abstract The fall armyworm Spodoptera frugiperda , an invasive insect pest native to the Americas, has established populations throughout eastern China. North China Plain—a key corn‐producing area in East with a unique topography—was invaded by 2019 and is seriously threatened this migratory pest. However, spatiotemporal extent of movements from Plain remains poorly understood. Using air transport‐based trajectory modeling approach that incorporates flight behavior, we simulated potential...

<List> <ListItem><ItemContent> ● Crop pests are a major factor restricting agricultural production in China. </ItemContent></ListItem> The National Monitoring and Early Warning System (NMEWS) was established > 40 years ago. Application of NMEWS has increased national capability to tackle pests. </ItemContent></ListItem></List> importance food security, especially combating the problem acute hunger, been underscored as key component sustainable development. Considering challenge rapidly...

The fall armyworm (FAW), Spodoptera frugiperda (J. E. Smith), is an important agricultural pest with a strong migratory ability. While the species native to Americas, it has recently invaded China, ravaging crops in many provinces (autonomous regions, municipalities). Its long-distance migration, which critical understand for management programs, been well studied its region. In other regions however, moth's migration patterns have not yet characterized. Here, behavior of FAW populations...

The fall armyworm (FAW, Lepidoptera: Noctuidae), Spodoptera frugiperda (J. E. Smith), invaded China in mid-December 2018; since then, it has become a great threat to Chinese agricultural production. Qinling Mountains–Huaihe River region (QM–HRR) is the transitional zone between northern and southern China, an important for both corn wheat Based on actual occurrence of QM–HRR by FAW 2019, daily mean surface air temperature nocturnal wind conditions at 925 hPa were examined, migratory routes...

Fall armyworm, Spodoptera frugiperda (J. E. Smith, 1797), a crop pest native to tropical and subtropical regions of America, has invaded spread into most in China, posing severe threat China's agriculture. The cold hardiness directly determines its geographic distribution through adapting winter temperatures different regions. Here, we measured supercooling points lethal time (LT) at low S. frugiperda. for developmental stages increasing order were: adults (−15.05°C)<pupae...

The fall armyworm (FAW) Spodoptera frugiperda Smith (Lepidoptera: Noctuidae) invaded Myanmar and China in 2018 greatly impacted agricultural production ecosystem balance these areas. FAW is a migratory insect, but its seasonal migration pattern between the two countries has been largely unknown. From 2019 to 2021, we monitored of China-Myanmar border area using searchlight trap, assessed reproductive development status female migrants traced routes by trajectory simulation.FAW moths were...

Many methods for trajectory simulation, such as Hybrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT), have been developed over the past several decades and contributed greatly to our knowledge in insect migratory movement. To improve accuracy of we a new numerical model, which self-powered flight behaviors insects are considered calculation is driven by high spatio-temporal resolution weather conditions simulated Weather Research Forecasting (WRF) model. However, rigorous...

Abstract Sex ratio bias is common in migratory animals and can affect population structure reproductive strategies, thereby altering development. However, little known about the underlying mechanisms that lead to sex insect populations. In this study, we used Cnaphalocrocis medinalis , a typical pest of rice, explore phenomenon. A total 1,170 moths were collected from searchlight traps during immigration periods 2015–2018. Females much more abundant than males each year (total females: =...

The fall armyworm (FAW), Spodoptera frugiperda, is a migratory noctuid pest that has recently invaded eastern Asia. From 2017 up till 2020, searchlight trapping was used to assess the extent of FAW migration across South China Sea. Molecular and morphology-based identification confirmed made its first appearance on Yongxing Island 11 April 2019, with most trapped individuals belonging S. frugiperda "corn-strain". Carbon isotope analysis further showed moths originated from C4 host plants,...

Abstract Background Natural enemies are important in pest control. However, control by natural is hindered the migration of rice planthoppers. Therefore, comigration and interactions between Laodelphax striatellus (Fallén) Sogatella furcifera (Horváth) five predator species, Chrysoperla sinica Tjeder, Harmonia axyridis (Pallas), Episyrphus balteatus , Syrphus corollae (Fab.) Chrysopa pallens (Rambur) eastern Asia were investigated. Results From 2012 to 2021, patterns two planthoppers enemy...

Many insects adopt seasonal, trans-latitudinal migration in response to altering climatic conditions, resource availability or reproductive requirements. Though the behavior of cotton bollworm, Helicoverpa armigera (Hübner)(Lepidoptera: Noctuidae), has been well-studied, little is known about extent intra-specific variation between northward- and southward-migrating individuals. In this study, we captured H. adults along species' route during 2017-2018 determine seasonal variability their...

Abstract BACKGROUND The fall armyworm (FAW), an invasive pest from the Americas, is rapidly spreading through Old World, and has recently invaded Indochinese Peninsula southern China. In FAW migrates winter-breeding areas in south into summer-breeding throughout North America where it a major of corn. Asian populations are also likely to evolve migrations corn-producing regions eastern China, they will pose serious threat food security. RESULTS To evaluate invasion risk rate expansion future...

The Asian corn borer (ACB), Ostrinia furnacalis (Guenée), is a notorious polyphagous insect pest in China and other regions of East Asia. long-distance flight behavior the ACB moths, however, not well understood, especially field conditions. In this study, nightly monitoring data for multiple years (2003-2017) on adults crossing Bohai Strait northern China, showed that large number frequently flew across from May to September with peak migrations usually occurred, followed order by...

In this study we investigated the effects of climate change on fall armyworm, Spodoptera frugiperda (Lepidoptera: Noctuidae).Based current distribution records S. and selected bioclimatic factors, modelled its potential habitat suitability in China under four scenarios using Maximum Entropy Models (MaxEnt) Geographic Information Systems (GIS).Our results showed that: (1) mean area curve (AUC) values both our initial final models were greater than 0.978, indicating high accuracy predictions;...