Entomología
In 1980 major studies on entomology were directed to accumulating information on the complex of insects that attack the cassava crop, emphasizing biological control studies of important pests, especially Erinnyis ello and Phenacoccus sp. Basic studies on the stemborer (Chilomina clarkei) were conduc...
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| Format: | Book Chapter |
| Language: | Español |
| Published: |
International Center for Tropical Agriculture
1980
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| Online Access: | https://hdl.handle.net/10568/81728 |
| _version_ | 1855539611014529024 |
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| author | International Center for Tropical Agriculture |
| author_browse | International Center for Tropical Agriculture |
| author_facet | International Center for Tropical Agriculture |
| author_sort | International Center for Tropical Agriculture |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | In 1980 major studies on entomology were directed to accumulating information on the complex of insects that attack the cassava crop, emphasizing biological control studies of important pests, especially Erinnyis ello and Phenacoccus sp. Basic studies on the stemborer (Chilomina clarkei) were conducted for the 1st time and a new pest, a subterranean Hemiptera (Cyrtomenus bergi) which causes considerable damage to cassava roots, is described. Three trials were conducted at the Nataima station of the Instituto Colombiano Agopecuario to determine losses from whitefly (Aleurotrachelus socialis) infestations. It was found that when whiteflies were not controlled, av. yields decreased from 26 to 9 t/ha. Nutritional habits, insect biology, and biological control of the mites Mononychellus tanajoa, M. urticae, and Oligonychus peruvianus were studied. The germplasm bank at the Centro Internacional de Agricultura Tropical was evaluated for resistance to the cassava lacebug (Vatiga manihotae); of the 1865 fines tested, 527 (28 percent) were scored less than 1 on a 0-5 damage scale. (CIAT) |
| format | Book Chapter |
| id | CGSpace81728 |
| institution | CGIAR Consortium |
| language | Español |
| publishDate | 1980 |
| publishDateRange | 1980 |
| publishDateSort | 1980 |
| publisher | International Center for Tropical Agriculture |
| publisherStr | International Center for Tropical Agriculture |
| record_format | dspace |
| spelling | CGSpace817282025-11-05T17:07:26Z Entomología International Center for Tropical Agriculture manihot esculenta aleurotrachelus socialis biological control entomology erinnyis ello field experiments injurious insects injurious mites insect biology mononychellus tanajoa noxious animals oligonychus peruvianus pests phenacoccus research aleyrodidae vectors In 1980 major studies on entomology were directed to accumulating information on the complex of insects that attack the cassava crop, emphasizing biological control studies of important pests, especially Erinnyis ello and Phenacoccus sp. Basic studies on the stemborer (Chilomina clarkei) were conducted for the 1st time and a new pest, a subterranean Hemiptera (Cyrtomenus bergi) which causes considerable damage to cassava roots, is described. Three trials were conducted at the Nataima station of the Instituto Colombiano Agopecuario to determine losses from whitefly (Aleurotrachelus socialis) infestations. It was found that when whiteflies were not controlled, av. yields decreased from 26 to 9 t/ha. Nutritional habits, insect biology, and biological control of the mites Mononychellus tanajoa, M. urticae, and Oligonychus peruvianus were studied. The germplasm bank at the Centro Internacional de Agricultura Tropical was evaluated for resistance to the cassava lacebug (Vatiga manihotae); of the 1865 fines tested, 527 (28 percent) were scored less than 1 on a 0-5 damage scale. (CIAT) En 1980, los principales trabajos de entomologia de yuca se dirigieron hacia la acumulacion de informacion sobre el complejo de insectos que ataca el cultivo, con enfasis en el estudio del control biologico de las plagas importantes, especialmente Erinnyis ello y Phenacoccus sp. Por primera vez se realizaron estudios basicos del barrenador del tallo (Chilomina clarkei) y se describio una nueva plaga, un hemiptero subterraneo (Cyrtomenus bergi) que causa graves danos a las raices. Se realizaron 3 ensayos en la estacion Nataima del Instituto Colombiano Agropecuario para determinar las perdidas por las infestaciones de mosca blanca (Aleurotrachelus socialis) encontrandose que cuando no se controlan, el prom. de rendimientos disminuye de 26 a 9 t/ha. Se estudio el habito alimenticio, la biologia y el control biologico de los acaros Mononychellus tanajoa, M. urticae y Oligonychus peruvianus. Se evaluo el banco de germoplasma del Centro Internacional de Agricultura Tropical en cuanto a la resistencia al chinche de encaje de la yuca (Vatiga manihotae); de las 1865 lineas evaluadas, 527 (28 por ciento) presentaron un dano menor o igual que 1 en una escala de 0-5. (CIAT) 1980 2017-06-20T08:51:32Z 2017-06-20T08:51:32Z Book Chapter https://hdl.handle.net/10568/81728 es Open Access application/pdf International Center for Tropical Agriculture Entomología.1980. In: Centro Internacional de Agricultura Tropical. Informe anual del programa de yuca 1979 . CIAT, Cali, CO. p. 11-17. (Serie CIAT no. 02SC1-79) |
| spellingShingle | manihot esculenta aleurotrachelus socialis biological control entomology erinnyis ello field experiments injurious insects injurious mites insect biology mononychellus tanajoa noxious animals oligonychus peruvianus pests phenacoccus research aleyrodidae vectors International Center for Tropical Agriculture Entomología |
| title | Entomología |
| title_full | Entomología |
| title_fullStr | Entomología |
| title_full_unstemmed | Entomología |
| title_short | Entomología |
| title_sort | entomologia |
| topic | manihot esculenta aleurotrachelus socialis biological control entomology erinnyis ello field experiments injurious insects injurious mites insect biology mononychellus tanajoa noxious animals oligonychus peruvianus pests phenacoccus research aleyrodidae vectors |
| url | https://hdl.handle.net/10568/81728 |
| work_keys_str_mv | AT internationalcenterfortropicalagriculture entomologia |