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First report of Ovomermis sinensis (Nematoda: Mermithidae) parasitizing fall armyworm Spodoptera frugiperda (Lepidoptera: Noctuidae) in China

Bingjiao Sun

Bingjiao Sun

College of Life Sciences, Nankai UniversityTianjin, China
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Sun, Bingjiao
, 
Fen Li

Fen Li

Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests, Ministry of Education, College of Plant Protection, Hainan UniversityHaikou, China
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Li, Fen
, 
Xiaorui He

Xiaorui He

College of Life Sciences, Nankai UniversityTianjin, China
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He, Xiaorui
, 
Fengqin Cao

Fengqin Cao

Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests, Ministry of Education, College of Plant Protection, Hainan UniversityHaikou, China
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Cao, Fengqin
, 
Elizabeth Bandason

Elizabeth Bandason

Lilongwe University of Agriculture and Natural Resources, Bunda CampusLilongwe, Malawi
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Bandason, Elizabeth
, 
David Shapiro-Ilan

David Shapiro-Ilan

USDA-ARS, SEFTNRLByron, US
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Shapiro-Ilan, David
, 
Weibin Ruan

Weibin Ruan

College of Life Sciences, Nankai UniversityTianjin, China
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Ruan, Weibin
 und 
Shaoying Wu

Shaoying Wu

Key Laboratory of Green Prevention and Control of Tropical Plant Diseases and Pests, Ministry of Education, College of Plant Protection, Hainan UniversityHaikou, China
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Wu, Shaoying
  
18. Mai 2020
First report of Ovomermis sinensis (Nematoda: Mermithidae) parasitizing fall armyworm Spodoptera frugiperda (Lepidoptera: Noctuidae) in China's Cover Image
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Online veröffentlicht: 18. Mai 2020
Seitenbereich: 1 - 7
Eingereicht: 24. Dez. 2019
DOI: https://doi.org/10.21307/jofnem-2020-050
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© 2020 Bingjiao Sun et al., published by Sciendo.
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Figure 1:

Microscopic photo of Ovomermis sinensis. A: Stylet on the anterior portion of post-parasitic juvenile (arrow); B: Tail appendage on post-parasitic juvenile (arrow).
Microscopic photo of Ovomermis sinensis. A: Stylet on the anterior portion of post-parasitic juvenile (arrow); B: Tail appendage on post-parasitic juvenile (arrow).

Figure 2:

Post-parasitic juvenile Ovomermis sinensis nematode (scale bar: 1 cm).
Post-parasitic juvenile Ovomermis sinensis nematode (scale bar: 1 cm).

Figure 3:

Post-parasitic juvenile Ovomermis sinensis nematode emerging from Spodoptera frugiperda.
Post-parasitic juvenile Ovomermis sinensis nematode emerging from Spodoptera frugiperda.

Figure 4:

Neighbor-joining tree of the Mermithidae family. The tree was based on 18 S rDNA data and Kimura 2-parameter model; numbers on branches represent bootstrap support (>70%) based on 500 replicates; scale represents K2P genetic distance.
Neighbor-joining tree of the Mermithidae family. The tree was based on 18 S rDNA data and Kimura 2-parameter model; numbers on branches represent bootstrap support (>70%) based on 500 replicates; scale represents K2P genetic distance.

Figure 5:

Neighbor-joining tree of the Mermithidae family. The tree was based on 28 S rDNA data and Kimura 2-parameter model; numbers on branches represent bootstrap support (>70%) based on 500 replicates; scale represents K2P genetic distance.
Neighbor-joining tree of the Mermithidae family. The tree was based on 28 S rDNA data and Kimura 2-parameter model; numbers on branches represent bootstrap support (>70%) based on 500 replicates; scale represents K2P genetic distance.

Figure S1:

Alignment of 18 S sequences for comparative purposes of Ovomermis sinensis from Hainan province showed nucleotide identical to NCBI. Dashes are inferred insertion-deletion and dots indicate identity with the first sequence.
Alignment of 18 S sequences for comparative purposes of Ovomermis sinensis from Hainan province showed nucleotide identical to NCBI. Dashes are inferred insertion-deletion and dots indicate identity with the first sequence.

Location, date, coordinates, and number of larvae, parasitic nematodes of fall armyworm (FAW) Spodoptera frugiperda and conditions of plants at three surveyed sites in Hainan province, China_

Date Location Coordinates Total FAW (No.) Parasitized FAW (No.) Cornfield size (m2) Plant height (cm) Plant status Planting gap (cm) Spray insecticide situation
May 08, 2019 1 Wuna road, Qiongzhong Li and Miao autonomous county, Hainan Province, China N 19°2´20˝ E 109°50´40˝ 43 1 600 35 The late seedling 50 No spray insecticide
June 13, 2019 Qionghai X356, Hainan Province, China N 19°15´51˝ E 110°28´49˝ 52 1 2300 120 Jointing and booting stage 40 No spray insecticide
June 11, 2019 Foluo town, Ledong Li autonomous county, Hainan Province, China N 18°61´97˝ E 108°73´38˝ 105 2 990 150 Mature stage 45 No spray insecticide
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