Temporal and Spatial Distribution Patterns of <i>Spodoptera frugiperda</i> in Mountain Maize Fields in China
<i>Spodoptera frugiperda</i> (Lepidoptera: Noctuidae) is a major pest of maize worldwide. This pest colonized maize in Shizong, Qujing, Yunnan, China in 2019. To explore the temporal and spatial distribution of <i>S. frugiperda</i> in local fields, “W” type 5-point sampling w...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-10-01
|
| Series: | Insects |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-4450/13/10/938 |
| _version_ | 1797440810642309120 |
|---|---|
| author | Yanyan He Kun Wang Guangzu Du Qiong Zhang Bin Li Lin Zhao Ping He Bin Chen |
| author_facet | Yanyan He Kun Wang Guangzu Du Qiong Zhang Bin Li Lin Zhao Ping He Bin Chen |
| author_sort | Yanyan He |
| collection | DOAJ |
| description | <i>Spodoptera frugiperda</i> (Lepidoptera: Noctuidae) is a major pest of maize worldwide. This pest colonized maize in Shizong, Qujing, Yunnan, China in 2019. To explore the temporal and spatial distribution of <i>S. frugiperda</i> in local fields, “W” type 5-point sampling was performed from 2020 to 2021. The spatial distribution was analyzed using the aggregation index, Iwao’s regression, and Taylor’s power law. The temporal distribution showed two peaks for both 2020 and 2021 when the density of eggs, larvae, and adults was high throughout the maize growth period. Additionally, 1st and 3rd instar larvae were higher in number during the maize seedling, jointing, and spinning stages. Fourth to 6th instar larvae were higher in number after the tasseling stage. Additionally, the spatial distribution results showed that 1st to 3rd instar larvae were aggregated, while 4th to 6th instar larvae were uniformly distributed in mountain maize fields. This study provides monitoring data for <i>S. frugiperda</i> and clarifies the temporal and spatial distribution characteristics for larvae in mountain maize fields. Further, it also provides guidance for investigation into population dynamics and the development of predictive models for integrated <i>S. frugiperda</i> management. |
| first_indexed | 2024-03-09T12:13:48Z |
| format | Article |
| id | doaj.art-62da8520286649b4ba4957ac5b3f80bb |
| institution | Directory Open Access Journal |
| issn | 2075-4450 |
| language | English |
| last_indexed | 2024-03-09T12:13:48Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Insects |
| spelling | doaj.art-62da8520286649b4ba4957ac5b3f80bb2023-11-30T22:48:36ZengMDPI AGInsects2075-44502022-10-01131093810.3390/insects13100938Temporal and Spatial Distribution Patterns of <i>Spodoptera frugiperda</i> in Mountain Maize Fields in ChinaYanyan He0Kun Wang1Guangzu Du2Qiong Zhang3Bin Li4Lin Zhao5Ping He6Bin Chen7State Key Laboratory of Conservation and Utilization of Biological Resources of Yunnan, College of Plant Protection, Yunnan Agricultural University, Kunming 650201, ChinaState Key Laboratory of Conservation and Utilization of Biological Resources of Yunnan, College of Plant Protection, Yunnan Agricultural University, Kunming 650201, ChinaState Key Laboratory of Conservation and Utilization of Biological Resources of Yunnan, College of Plant Protection, Yunnan Agricultural University, Kunming 650201, ChinaPlant Protection and Inspection Station of Qujing City, Qujing 655000, ChinaPlant Protection and Inspection Station of Shizong County, Shizong 655700, ChinaPlant Protection and Inspection Station of Qujing City, Qujing 655000, ChinaPlant Protection and Inspection Station of Qujing City, Qujing 655000, ChinaState Key Laboratory of Conservation and Utilization of Biological Resources of Yunnan, College of Plant Protection, Yunnan Agricultural University, Kunming 650201, China<i>Spodoptera frugiperda</i> (Lepidoptera: Noctuidae) is a major pest of maize worldwide. This pest colonized maize in Shizong, Qujing, Yunnan, China in 2019. To explore the temporal and spatial distribution of <i>S. frugiperda</i> in local fields, “W” type 5-point sampling was performed from 2020 to 2021. The spatial distribution was analyzed using the aggregation index, Iwao’s regression, and Taylor’s power law. The temporal distribution showed two peaks for both 2020 and 2021 when the density of eggs, larvae, and adults was high throughout the maize growth period. Additionally, 1st and 3rd instar larvae were higher in number during the maize seedling, jointing, and spinning stages. Fourth to 6th instar larvae were higher in number after the tasseling stage. Additionally, the spatial distribution results showed that 1st to 3rd instar larvae were aggregated, while 4th to 6th instar larvae were uniformly distributed in mountain maize fields. This study provides monitoring data for <i>S. frugiperda</i> and clarifies the temporal and spatial distribution characteristics for larvae in mountain maize fields. Further, it also provides guidance for investigation into population dynamics and the development of predictive models for integrated <i>S. frugiperda</i> management.https://www.mdpi.com/2075-4450/13/10/938<i>Spodoptera frugiperda</i>mountain maizetemporal distributionspatial distribution |
| spellingShingle | Yanyan He Kun Wang Guangzu Du Qiong Zhang Bin Li Lin Zhao Ping He Bin Chen Temporal and Spatial Distribution Patterns of <i>Spodoptera frugiperda</i> in Mountain Maize Fields in China Insects <i>Spodoptera frugiperda</i> mountain maize temporal distribution spatial distribution |
| title | Temporal and Spatial Distribution Patterns of <i>Spodoptera frugiperda</i> in Mountain Maize Fields in China |
| title_full | Temporal and Spatial Distribution Patterns of <i>Spodoptera frugiperda</i> in Mountain Maize Fields in China |
| title_fullStr | Temporal and Spatial Distribution Patterns of <i>Spodoptera frugiperda</i> in Mountain Maize Fields in China |
| title_full_unstemmed | Temporal and Spatial Distribution Patterns of <i>Spodoptera frugiperda</i> in Mountain Maize Fields in China |
| title_short | Temporal and Spatial Distribution Patterns of <i>Spodoptera frugiperda</i> in Mountain Maize Fields in China |
| title_sort | temporal and spatial distribution patterns of i spodoptera frugiperda i in mountain maize fields in china |
| topic | <i>Spodoptera frugiperda</i> mountain maize temporal distribution spatial distribution |
| url | https://www.mdpi.com/2075-4450/13/10/938 |
| work_keys_str_mv | AT yanyanhe temporalandspatialdistributionpatternsofispodopterafrugiperdaiinmountainmaizefieldsinchina AT kunwang temporalandspatialdistributionpatternsofispodopterafrugiperdaiinmountainmaizefieldsinchina AT guangzudu temporalandspatialdistributionpatternsofispodopterafrugiperdaiinmountainmaizefieldsinchina AT qiongzhang temporalandspatialdistributionpatternsofispodopterafrugiperdaiinmountainmaizefieldsinchina AT binli temporalandspatialdistributionpatternsofispodopterafrugiperdaiinmountainmaizefieldsinchina AT linzhao temporalandspatialdistributionpatternsofispodopterafrugiperdaiinmountainmaizefieldsinchina AT pinghe temporalandspatialdistributionpatternsofispodopterafrugiperdaiinmountainmaizefieldsinchina AT binchen temporalandspatialdistributionpatternsofispodopterafrugiperdaiinmountainmaizefieldsinchina |