Source Regions of the First Immigration of Fall Armyworm, Spodoptera frugiperda (Lepidoptera: Noctuidae) Invading Australia

Fall armyworm is recognized as one of most highly destructive global agricultural pests. In January 2020, it had first invaded Australia, posing a significant risk to its biosecurity, food security, and agricultural productivity. In this study, the migration paths and wind systems for the case of fa...

Full description

Saved in:
Bibliographic Details
Published in:Insects (Basel, Switzerland) Switzerland), 2021-12, Vol.12 (12), p.1104
Main Authors: Qi, Guo-Jun, Ma, Jian, Wan, Jing, Ren, Yong-Lin, McKirdy, Simon, Hu, Gao, Zhang, Zhen-Fei
Format: Article
Language:English
Subjects:
Ability tests
Agricultural production
Agriculture
Altitude
Australia
Biosecurity
Butterflies & moths
Flight
Flight behavior
Food security
Immigrants
Immigration
Insect migration
Islands
Migration
Morphology
Pests
Rain
Spodoptera frugiperda
Straits
Surveillance
Three dimensional analysis
Trajectory analysis
Weather
Weather forecasting
Wind
wind systems
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Fall armyworm is recognized as one of most highly destructive global agricultural pests. In January 2020, it had first invaded Australia, posing a significant risk to its biosecurity, food security, and agricultural productivity. In this study, the migration paths and wind systems for the case of fall armyworm invading Australia were analyzed using a three-dimensional trajectory simulation approach, combined with its flight behavior and NCEP meteorological reanalysis data. The analysis showed that fall armyworm in Torres Strait most likely came from surrounding islands of central Indonesia on two occasions via wind migration. Specifically, fall armyworm moths detected on Saibai and Erub Islands might have arrived from southern Sulawesi Island, Indonesia, between January 15 and 16. The fall armyworm in Bamaga most likely arrived from the islands around Arafura Sea and Sulawesi Island of Indonesia, between January 26 and 27. The high risk period for the invasion of fall armyworm is only likely to have occurred in January-February due to monsoon winds, which were conducive to flight across the Timor Sea towards Australia. This case study is the first to confirm the immigration paths and timing of fall armyworm from Indonesia to Australia via its surrounding islands.
ISSN:2075-4450
2075-4450
DOI:10.3390/insects12121104