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

Journal of Nematology
Volume 52 (2020): Issue 1 (January 2020)
By:
Open Access
|May 2020

Figures & Tables

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_

DateLocationCoordinatesTotal FAW (No.)Parasitized FAW (No.)Cornfield size (m2)Plant height (cm)Plant statusPlanting gap (cm)Spray insecticide situation
May 08, 20191 Wuna road, Qiongzhong Li and Miao autonomous county, Hainan Province, ChinaN 19°2´20˝ E 109°50´40˝43160035The late seedling50No spray insecticide
June 13, 2019Qionghai X356, Hainan Province, ChinaN 19°15´51˝ E 110°28´49˝5212300120Jointing and booting stage40No spray insecticide
June 11, 2019Foluo town, Ledong Li autonomous county, Hainan Province, ChinaN 18°61´97˝ E 108°73´38˝1052990150Mature stage45No spray insecticide
DOI: https://doi.org/10.21307/jofnem-2020-050 | Journal eISSN: 2640-396X | Journal ISSN: 0022-300X
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Language: English
Page range: 1 - 7
Submitted on: Dec 24, 2019
Published on: May 18, 2020
Published by: Society of Nematologists, Inc.
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year
Keywords:
Biological control,
Monoxenous obligate parasites,
Fall armyworm,
Mermithidae,
Insect parasitism
Related subjects:
Life sciences,
Life sciences, other

© 2020 Bingjiao Sun, Fen Li, Xiaorui He, Fengqin Cao, Elizabeth Bandason, David Shapiro-Ilan, Weibin Ruan, Shaoying Wu, published by Society of Nematologists, Inc.
This work is licensed under the Creative Commons Attribution 4.0 License.

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