Persistence of the entomopathogenic nematode Steinernema feltiae in a novel capsule formulation
The post-application persistence of entomopathogenic nematodes (EPNs) depends on environmental conditions, which affect their efficacy as biocontrol agents in the field. This study evaluated the persistence of the EPN Steinernema feltiae in a novel hydrogel/emulsion capsule formulation under laborat...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-01-01
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| Series: | Biological Control |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1049964424002494 |
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| author | Jermaine D. Perier Shaohui Wu Steven P. Arthurs Michael D. Toews David I. Shapiro-Ilan |
| author_facet | Jermaine D. Perier Shaohui Wu Steven P. Arthurs Michael D. Toews David I. Shapiro-Ilan |
| author_sort | Jermaine D. Perier |
| collection | DOAJ |
| description | The post-application persistence of entomopathogenic nematodes (EPNs) depends on environmental conditions, which affect their efficacy as biocontrol agents in the field. This study evaluated the persistence of the EPN Steinernema feltiae in a novel hydrogel/emulsion capsule formulation under laboratory and field conditions. The new formulation was compared to the traditional aqueous application, using the baiting method with Tenebrio molitor larvae. In laboratory experiments, the capsule formulation of S. feltiae ENO2 strain was compared with aqueous applications of ENO2 and SN strain at 23 °C for 0, 7, 14, 21, and 28 days after treatment (DAT) in soil cups. The ENO2 capsule formulation persisted longer than ENO2 aqueous, while SN aqueous also persisted better than the ENO2 aqueous application but was not different from the ENO2 treatment. In field trials, the capsule formulation (applied sub-surface) persisted longer than the aqueous application (applied on the surface) of ENO2 when applied in recommended methods; however, there were no differences between formulations when applied in-furrow (sub-surface) or on the soil surface. Comparing the application methods, the sub-surface application improved the persistence of capsules over the surface application while it did not affect the performance of the aqueous application. Overall, these findings suggest the capsule formulation buried in the soil improves EPN persistence. |
| format | Article |
| id | doaj-art-2c169a83e81a4e1c8116edc13f41cce2 |
| institution | Kabale University |
| issn | 1049-9644 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Biological Control |
| spelling | doaj-art-2c169a83e81a4e1c8116edc13f41cce22025-01-09T06:13:12ZengElsevierBiological Control1049-96442025-01-01200105684Persistence of the entomopathogenic nematode Steinernema feltiae in a novel capsule formulationJermaine D. Perier0Shaohui Wu1Steven P. Arthurs2Michael D. Toews3David I. Shapiro-Ilan4Department of Entomology, University of Georgia, Tifton, GA 31793, USADepartment of Entomology, The Ohio State University, Columbus, OH, 43210, USABioBee USA, Salisbury, MD 21804, USADepartment of Entomology, University of Georgia, Tifton, GA 31793, USAUSDA-ARS, SE Fruit, and Tree Nut Research Unit, Byron, GA 31008, USA; Corresponding author at: USDA-ARS, Southeastern Fruit, and Tree Nut Research Lab, 21 Dunbar Rd., Byron, GA 31008, USA.The post-application persistence of entomopathogenic nematodes (EPNs) depends on environmental conditions, which affect their efficacy as biocontrol agents in the field. This study evaluated the persistence of the EPN Steinernema feltiae in a novel hydrogel/emulsion capsule formulation under laboratory and field conditions. The new formulation was compared to the traditional aqueous application, using the baiting method with Tenebrio molitor larvae. In laboratory experiments, the capsule formulation of S. feltiae ENO2 strain was compared with aqueous applications of ENO2 and SN strain at 23 °C for 0, 7, 14, 21, and 28 days after treatment (DAT) in soil cups. The ENO2 capsule formulation persisted longer than ENO2 aqueous, while SN aqueous also persisted better than the ENO2 aqueous application but was not different from the ENO2 treatment. In field trials, the capsule formulation (applied sub-surface) persisted longer than the aqueous application (applied on the surface) of ENO2 when applied in recommended methods; however, there were no differences between formulations when applied in-furrow (sub-surface) or on the soil surface. Comparing the application methods, the sub-surface application improved the persistence of capsules over the surface application while it did not affect the performance of the aqueous application. Overall, these findings suggest the capsule formulation buried in the soil improves EPN persistence.http://www.sciencedirect.com/science/article/pii/S1049964424002494Biological controlSteinernema feltiaeBiopesticide formulationPest management |
| spellingShingle | Jermaine D. Perier Shaohui Wu Steven P. Arthurs Michael D. Toews David I. Shapiro-Ilan Persistence of the entomopathogenic nematode Steinernema feltiae in a novel capsule formulation Biological Control Biological control Steinernema feltiae Biopesticide formulation Pest management |
| title | Persistence of the entomopathogenic nematode Steinernema feltiae in a novel capsule formulation |
| title_full | Persistence of the entomopathogenic nematode Steinernema feltiae in a novel capsule formulation |
| title_fullStr | Persistence of the entomopathogenic nematode Steinernema feltiae in a novel capsule formulation |
| title_full_unstemmed | Persistence of the entomopathogenic nematode Steinernema feltiae in a novel capsule formulation |
| title_short | Persistence of the entomopathogenic nematode Steinernema feltiae in a novel capsule formulation |
| title_sort | persistence of the entomopathogenic nematode steinernema feltiae in a novel capsule formulation |
| topic | Biological control Steinernema feltiae Biopesticide formulation Pest management |
| url | http://www.sciencedirect.com/science/article/pii/S1049964424002494 |
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