Effects of cassava pubescene on the behaviour, postembryonic development and reproduction of the cassava mealybug, Phenacoccus manihoti matileferrero (Homoptera: pseudococcidae)
Role of trichome density in cassava resistance to mealybug, Phenacoccus manihoti Matile-Ferrero was evaluated on the apex, the first expanded leaf and the stem in pubescent and glabrous cassava varieties. Pubescence significantly retarded the rate of settling and establishment of P. manihoti. The we...
| Autores principales: | , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Springer
1989
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/98664 |
| _version_ | 1855528917171961856 |
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| author | Kasu, T. Odebiyi, J. Lema, K. |
| author_browse | Kasu, T. Lema, K. Odebiyi, J. |
| author_facet | Kasu, T. Odebiyi, J. Lema, K. |
| author_sort | Kasu, T. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Role of trichome density in cassava resistance to mealybug, Phenacoccus manihoti Matile-Ferrero was evaluated on the apex, the first expanded leaf and the stem in pubescent and glabrous cassava varieties. Pubescence significantly retarded the rate of settling and establishment of P. manihoti. The weight of the developing larvae was also affected becoming more pronounced at the pre-ovipositing adult stage. However, the relationship between pubescence and P. manihoti weight was not significant. Moreover, the significant differences in weight at the preovipositing adult stage was not reflected in the corresponding fecundity on the glabrous and pubescent varieties. Pubescence accounted for only 18% of the differences in observed fecundity. There was also no significant difference in the development period of the mealybug on glabrous and pubescent varieties. Pubescence appeared to be a mechanical irritant only. |
| format | Journal Article |
| id | CGSpace98664 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 1989 |
| publishDateRange | 1989 |
| publishDateSort | 1989 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | CGSpace986642024-08-29T11:41:31Z Effects of cassava pubescene on the behaviour, postembryonic development and reproduction of the cassava mealybug, Phenacoccus manihoti matileferrero (Homoptera: pseudococcidae) Kasu, T. Odebiyi, J. Lema, K. cassava mealybugs feeding biological control genetic resistance Role of trichome density in cassava resistance to mealybug, Phenacoccus manihoti Matile-Ferrero was evaluated on the apex, the first expanded leaf and the stem in pubescent and glabrous cassava varieties. Pubescence significantly retarded the rate of settling and establishment of P. manihoti. The weight of the developing larvae was also affected becoming more pronounced at the pre-ovipositing adult stage. However, the relationship between pubescence and P. manihoti weight was not significant. Moreover, the significant differences in weight at the preovipositing adult stage was not reflected in the corresponding fecundity on the glabrous and pubescent varieties. Pubescence accounted for only 18% of the differences in observed fecundity. There was also no significant difference in the development period of the mealybug on glabrous and pubescent varieties. Pubescence appeared to be a mechanical irritant only. 1989-04 2018-12-19T07:01:17Z 2018-12-19T07:01:17Z Journal Article https://hdl.handle.net/10568/98664 en Limited Access Springer Kasu, T., Odebiyi, J. & Lema, K. (1989). Effects of cassava pubescene on the behaviour, post-embryonic development and reproduction of the cassava mealybug, Phenacoccus manihoti matile-ferrero (Homoptera: pseudococcidae). Insect Science Application, 10(2), 123-129. |
| spellingShingle | cassava mealybugs feeding biological control genetic resistance Kasu, T. Odebiyi, J. Lema, K. Effects of cassava pubescene on the behaviour, postembryonic development and reproduction of the cassava mealybug, Phenacoccus manihoti matileferrero (Homoptera: pseudococcidae) |
| title | Effects of cassava pubescene on the behaviour, postembryonic development and reproduction of the cassava mealybug, Phenacoccus manihoti matileferrero (Homoptera: pseudococcidae) |
| title_full | Effects of cassava pubescene on the behaviour, postembryonic development and reproduction of the cassava mealybug, Phenacoccus manihoti matileferrero (Homoptera: pseudococcidae) |
| title_fullStr | Effects of cassava pubescene on the behaviour, postembryonic development and reproduction of the cassava mealybug, Phenacoccus manihoti matileferrero (Homoptera: pseudococcidae) |
| title_full_unstemmed | Effects of cassava pubescene on the behaviour, postembryonic development and reproduction of the cassava mealybug, Phenacoccus manihoti matileferrero (Homoptera: pseudococcidae) |
| title_short | Effects of cassava pubescene on the behaviour, postembryonic development and reproduction of the cassava mealybug, Phenacoccus manihoti matileferrero (Homoptera: pseudococcidae) |
| title_sort | effects of cassava pubescene on the behaviour postembryonic development and reproduction of the cassava mealybug phenacoccus manihoti matileferrero homoptera pseudococcidae |
| topic | cassava mealybugs feeding biological control genetic resistance |
| url | https://hdl.handle.net/10568/98664 |
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