Functional responses of Neoseiulus idaeus and Iphiseius degenerans (Acarina: Phytoseiidae) feeding on the cassava green mite, Mononychellus tanajoa (Acarina: Tetranychidae)
The functional responses of larva and female Iphiseius degenerans BERLESE and protonymph and female Neoseiulus idaeus (DENMARK & MUMA) were determined with different developmental stages of the cassava green mite (CGM), Mononychellus tanajoa BONDAR, as food supplied at densities of 1, 2, 5, 10, 20,...
| Autores principales: | , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
1990
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| Acceso en línea: | https://hdl.handle.net/10568/98671 |
| _version_ | 1855537683500105728 |
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| author | Akpokodje, G. Odebiyi, J. Ochieng, R. Herren, H. |
| author_browse | Akpokodje, G. Herren, H. Ochieng, R. Odebiyi, J. |
| author_facet | Akpokodje, G. Odebiyi, J. Ochieng, R. Herren, H. |
| author_sort | Akpokodje, G. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | The functional responses of larva and female Iphiseius degenerans BERLESE and protonymph and female Neoseiulus idaeus (DENMARK & MUMA) were determined with different developmental stages of the cassava green mite (CGM), Mononychellus tanajoa BONDAR, as food supplied at densities of 1, 2, 5, 10, 20, 30, 40, and 50 individuals per 3,14cm² cassava leaf disc arena. All functional responses obtained were of the Holling's Type II curve with the highest plateaux when adult females of both N.idaeus and I. degenerans were preying on CGM eggs. Mean highest number of 14.3 CGM eggs/5-hours consumed by a female N. idaeus was not significantly different from the 13.0CGM eggs/5-hours of I. degenerans. There was a significant non-linear positive correlation between predator's search rate and prey density in all treatments. Larvae of I. degenrans displayed a unique search rate curve apparently associated with its non-obligatory predatory nature. |
| format | Journal Article |
| id | CGSpace98671 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 1990 |
| publishDateRange | 1990 |
| publishDateSort | 1990 |
| record_format | dspace |
| spelling | CGSpace986712025-11-11T10:44:18Z Functional responses of Neoseiulus idaeus and Iphiseius degenerans (Acarina: Phytoseiidae) feeding on the cassava green mite, Mononychellus tanajoa (Acarina: Tetranychidae) Akpokodje, G. Odebiyi, J. Ochieng, R. Herren, H. economic importance predators cassava mealybugs arthropods The functional responses of larva and female Iphiseius degenerans BERLESE and protonymph and female Neoseiulus idaeus (DENMARK & MUMA) were determined with different developmental stages of the cassava green mite (CGM), Mononychellus tanajoa BONDAR, as food supplied at densities of 1, 2, 5, 10, 20, 30, 40, and 50 individuals per 3,14cm² cassava leaf disc arena. All functional responses obtained were of the Holling's Type II curve with the highest plateaux when adult females of both N.idaeus and I. degenerans were preying on CGM eggs. Mean highest number of 14.3 CGM eggs/5-hours consumed by a female N. idaeus was not significantly different from the 13.0CGM eggs/5-hours of I. degenerans. There was a significant non-linear positive correlation between predator's search rate and prey density in all treatments. Larvae of I. degenrans displayed a unique search rate curve apparently associated with its non-obligatory predatory nature. 1990 2018-12-19T07:01:21Z 2018-12-19T07:01:21Z Journal Article https://hdl.handle.net/10568/98671 en Open Access application/pdf Akpokodje, G., Odebiyi, J., Ochieng, R. & Herren, H. (1990). Functional responses of Neoseiulus idaeus and Iphiseius degenerans (Acarina: Phytoseiidae) feeding on the cassava green mite, Mononychellus tanajoa (Acarina: Tetranychidae). Bulletin de la Societe Entomologique Suisse, 63, 327-335. |
| spellingShingle | economic importance predators cassava mealybugs arthropods Akpokodje, G. Odebiyi, J. Ochieng, R. Herren, H. Functional responses of Neoseiulus idaeus and Iphiseius degenerans (Acarina: Phytoseiidae) feeding on the cassava green mite, Mononychellus tanajoa (Acarina: Tetranychidae) |
| title | Functional responses of Neoseiulus idaeus and Iphiseius degenerans (Acarina: Phytoseiidae) feeding on the cassava green mite, Mononychellus tanajoa (Acarina: Tetranychidae) |
| title_full | Functional responses of Neoseiulus idaeus and Iphiseius degenerans (Acarina: Phytoseiidae) feeding on the cassava green mite, Mononychellus tanajoa (Acarina: Tetranychidae) |
| title_fullStr | Functional responses of Neoseiulus idaeus and Iphiseius degenerans (Acarina: Phytoseiidae) feeding on the cassava green mite, Mononychellus tanajoa (Acarina: Tetranychidae) |
| title_full_unstemmed | Functional responses of Neoseiulus idaeus and Iphiseius degenerans (Acarina: Phytoseiidae) feeding on the cassava green mite, Mononychellus tanajoa (Acarina: Tetranychidae) |
| title_short | Functional responses of Neoseiulus idaeus and Iphiseius degenerans (Acarina: Phytoseiidae) feeding on the cassava green mite, Mononychellus tanajoa (Acarina: Tetranychidae) |
| title_sort | functional responses of neoseiulus idaeus and iphiseius degenerans acarina phytoseiidae feeding on the cassava green mite mononychellus tanajoa acarina tetranychidae |
| topic | economic importance predators cassava mealybugs arthropods |
| url | https://hdl.handle.net/10568/98671 |
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