Rice resistance buffers against the induced enhancement of brown planthopper fitness by some insecticides
The brown planthopper, Nilaparvata lugens (Stål)[BPH], is a damaging pest of rice in Asia. Insecticides and rice varietal resistance are widely implemented BPH management practices. However, outbreaks of BPH have been linked to excessive insecticide use—challenging the compatibility of these two man...
| Autores principales: | , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
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MDPI
2021
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/164150 |
| _version_ | 1855524813578174464 |
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| author | Horgan, Finbarr G. Peñalver-Cruz, Ainara Almazan, Maria Liberty P. |
| author_browse | Almazan, Maria Liberty P. Horgan, Finbarr G. Peñalver-Cruz, Ainara |
| author_facet | Horgan, Finbarr G. Peñalver-Cruz, Ainara Almazan, Maria Liberty P. |
| author_sort | Horgan, Finbarr G. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | The brown planthopper, Nilaparvata lugens (Stål)[BPH], is a damaging pest of rice in Asia. Insecticides and rice varietal resistance are widely implemented BPH management practices. However, outbreaks of BPH have been linked to excessive insecticide use—challenging the compatibility of these two management practices. IR62 is a variety with resistance against BPH, the whitebacked planthopper, Sogatella furcifera Horváth [WBPH], and the green leafhopper, Nephotettix virescens (Distant)[GLH]. We compared BPH responses to IR62 and to the susceptible variety IR64 treated with buprofezin, carbofuran, cartap hydrochloride, cypermethrin, deltamethrin, fipronil, or thiamethoxam + chlorantraniliprole. In greenhouse bioassays, cypermethrin, fipronil and thiamethoxam + chlorantraniliprole reduced egg laying on both varieties, and, together with buprofezin, reduced nymph survival to zero. Buprofezin, carbofuran, and cartap hydrochloride stimulated egg laying, and carbofuran increased nymph biomass, but these effects were reduced on IR62. Planthopper populations were ten times higher on deltamethrin-treated rice than untreated rice in a screenhouse experiment. Host resistance failed to buffer against this insecticide-induced resurgence in BPH and WBPH. However, IR62 reduced the effect in GLH. Rice treated with cypermethrin and fipronil had reduced yields compared to untreated controls, suggesting possible phytotoxic effects. We found little evidence of synergies between the two management practices; but host resistance did buffer against the undesirable effects of some insecticides. |
| format | Journal Article |
| id | CGSpace164150 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | MDPI |
| publisherStr | MDPI |
| record_format | dspace |
| spelling | CGSpace1641502024-12-22T05:44:52Z Rice resistance buffers against the induced enhancement of brown planthopper fitness by some insecticides Horgan, Finbarr G. Peñalver-Cruz, Ainara Almazan, Maria Liberty P. nilaparvata lugens ir varieties planthoppers sogatella furcifera varieties pests pest control The brown planthopper, Nilaparvata lugens (Stål)[BPH], is a damaging pest of rice in Asia. Insecticides and rice varietal resistance are widely implemented BPH management practices. However, outbreaks of BPH have been linked to excessive insecticide use—challenging the compatibility of these two management practices. IR62 is a variety with resistance against BPH, the whitebacked planthopper, Sogatella furcifera Horváth [WBPH], and the green leafhopper, Nephotettix virescens (Distant)[GLH]. We compared BPH responses to IR62 and to the susceptible variety IR64 treated with buprofezin, carbofuran, cartap hydrochloride, cypermethrin, deltamethrin, fipronil, or thiamethoxam + chlorantraniliprole. In greenhouse bioassays, cypermethrin, fipronil and thiamethoxam + chlorantraniliprole reduced egg laying on both varieties, and, together with buprofezin, reduced nymph survival to zero. Buprofezin, carbofuran, and cartap hydrochloride stimulated egg laying, and carbofuran increased nymph biomass, but these effects were reduced on IR62. Planthopper populations were ten times higher on deltamethrin-treated rice than untreated rice in a screenhouse experiment. Host resistance failed to buffer against this insecticide-induced resurgence in BPH and WBPH. However, IR62 reduced the effect in GLH. Rice treated with cypermethrin and fipronil had reduced yields compared to untreated controls, suggesting possible phytotoxic effects. We found little evidence of synergies between the two management practices; but host resistance did buffer against the undesirable effects of some insecticides. 2021-12-03 2024-12-19T12:53:31Z 2024-12-19T12:53:31Z Journal Article https://hdl.handle.net/10568/164150 en Open Access MDPI Horgan, Finbarr G.; Peñalver-Cruz, Ainara and Almazan, Maria Liberty P. 2021. Rice resistance buffers against the induced enhancement of brown planthopper fitness by some insecticides. Crops, Volume 1 no. 3 p. 166-184 |
| spellingShingle | nilaparvata lugens ir varieties planthoppers sogatella furcifera varieties pests pest control Horgan, Finbarr G. Peñalver-Cruz, Ainara Almazan, Maria Liberty P. Rice resistance buffers against the induced enhancement of brown planthopper fitness by some insecticides |
| title | Rice resistance buffers against the induced enhancement of brown planthopper fitness by some insecticides |
| title_full | Rice resistance buffers against the induced enhancement of brown planthopper fitness by some insecticides |
| title_fullStr | Rice resistance buffers against the induced enhancement of brown planthopper fitness by some insecticides |
| title_full_unstemmed | Rice resistance buffers against the induced enhancement of brown planthopper fitness by some insecticides |
| title_short | Rice resistance buffers against the induced enhancement of brown planthopper fitness by some insecticides |
| title_sort | rice resistance buffers against the induced enhancement of brown planthopper fitness by some insecticides |
| topic | nilaparvata lugens ir varieties planthoppers sogatella furcifera varieties pests pest control |
| url | https://hdl.handle.net/10568/164150 |
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