Ciclo biológico, comportamiento e importancia económica de Amblystira machalana (Heteroptera: Tingidae) en el cultivo de la yuca (Manihot esculenta Crantz)
Amblystira machalana (Black lacebug) is a new pest attacking cassava leaves. The insect was first observed causing damage to cassava in 1985 in different regions of Colombia, Venezuela and Ecuador. Several research studies were conduced at CIAT on pest behavior, and life cycle. Life cycle studies we...
| Main Authors: | , |
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| Format: | Journal Article |
| Language: | Español |
| Published: |
2003
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/44260 |
| _version_ | 1855516442016874496 |
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| author | Arias, B. Bellotti, Anthony C. |
| author_browse | Arias, B. Bellotti, Anthony C. |
| author_facet | Arias, B. Bellotti, Anthony C. |
| author_sort | Arias, B. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Amblystira machalana (Black lacebug) is a new pest attacking cassava leaves. The insect was first observed causing damage to cassava in 1985 in different regions of Colombia, Venezuela and Ecuador. Several research studies were conduced at CIAT on pest behavior, and life cycle. Life cycle studies were done in the laboratory (28° C and 60-70°70 RH), using petri dishes (10 cm diameter), and infecting cassava leaves with A. machalana. Studies of the insect behavior, to determine population fluctuation were done in the field using different planting time and crops stages. In addition, observations on the pest vertical plant distribution were carried out. In order to determine the economic damage and importance, field studies were conducted by protecting plants at different periods of the crop cycle using a randomized block design (3 replication per treatment and the cassava variety Mcol 22). Results show that A. machalana has five nymphal stages with an average duration of 22,3 days from eggs to adult. Field studies indicated that pest attack can occur during both wet and dry seasons, but more likely during rainy periods. Plant distribution studies indicate that insect populations are highest on leaves of the middle and lower third of the plant, were they feed. In accordance with the varietal susceptibility yield losses can range from 8,1 to 42,7% depending on the duration of the insect attack. |
| format | Journal Article |
| id | CGSpace44260 |
| institution | CGIAR Consortium |
| language | Español |
| publishDate | 2003 |
| publishDateRange | 2003 |
| publishDateSort | 2003 |
| record_format | dspace |
| spelling | CGSpace442602025-11-12T05:53:32Z Ciclo biológico, comportamiento e importancia económica de Amblystira machalana (Heteroptera: Tingidae) en el cultivo de la yuca (Manihot esculenta Crantz) Biology, behavior and economic importance of Ambystira machalana (Heteroptera: Tingidae) on the cassava (Manihot esculenta Crantz) Arias, B. Bellotti, Anthony C. manihot esculenta tingidae life cycle pest insects losses germplasm pest resistance ciclo vital insectos dañinos pérdidas germoplasma resistencia a las plagas Amblystira machalana (Black lacebug) is a new pest attacking cassava leaves. The insect was first observed causing damage to cassava in 1985 in different regions of Colombia, Venezuela and Ecuador. Several research studies were conduced at CIAT on pest behavior, and life cycle. Life cycle studies were done in the laboratory (28° C and 60-70°70 RH), using petri dishes (10 cm diameter), and infecting cassava leaves with A. machalana. Studies of the insect behavior, to determine population fluctuation were done in the field using different planting time and crops stages. In addition, observations on the pest vertical plant distribution were carried out. In order to determine the economic damage and importance, field studies were conducted by protecting plants at different periods of the crop cycle using a randomized block design (3 replication per treatment and the cassava variety Mcol 22). Results show that A. machalana has five nymphal stages with an average duration of 22,3 days from eggs to adult. Field studies indicated that pest attack can occur during both wet and dry seasons, but more likely during rainy periods. Plant distribution studies indicate that insect populations are highest on leaves of the middle and lower third of the plant, were they feed. In accordance with the varietal susceptibility yield losses can range from 8,1 to 42,7% depending on the duration of the insect attack. Amblystira machalana Drake (Chinche negro de encaje) es una plaga del follaje de la yuca, que se ha venido observando desde 1985 en diferentes partes de Colombia, Ecuador y Venezuela provocando daños en este cultivo. Varios trabajos se realizaron en el CIAT con el objeto de conocer su ciclo de vida, comportamiento, dinámica de la población y el efecto en la producción debido al ataque de esta plaga. El ciclo de vida se realizó a nivel de laboratorio a 28°C y 60-70% HR, utilizando cajas de petri de 10 cm de diámetro, infestando hojas con insectos provenientes del campo. Para el comportamiento del insecto, se realizaron evaluaciones a nivel de campo para determinar su fluctuación en diferentes etapas y épocas del cultivo; al mismo tiempo, se realizaron observaciones de la distribución vertical en la planta. Para determinar su importancia económica, se hizo un ensayo en parcelas de campo con diferentes períodos de protección en bloques al azar con tres repeticiones con la variedad MCol 22. Los resultados indicaron que el ciclo de vida del insecto pasa por cinco ínstares ninfales con una duración promedia total de huevo hasta adulto dc 22,3 días. El comportamiento del insecto en condiciones de campo, indicó que es una plaga que puede atacar el cultivo en las épocas secas y lluviosas con preferencia de las últimas y que las poblaciones son más altas en las hojas del tercio medio y bajo de la planta las que elige para alimentarse. De acuerdo con las variedades, sus daños pueden ser severos y reducen la producción de raíces entre 8,1 y 42,7%, dependiendo de la duración del ataque del insecto. 2003 2014-10-02T08:33:30Z 2014-10-02T08:33:30Z Journal Article https://hdl.handle.net/10568/44260 es Open Access application/pdf |
| spellingShingle | manihot esculenta tingidae life cycle pest insects losses germplasm pest resistance ciclo vital insectos dañinos pérdidas germoplasma resistencia a las plagas Arias, B. Bellotti, Anthony C. Ciclo biológico, comportamiento e importancia económica de Amblystira machalana (Heteroptera: Tingidae) en el cultivo de la yuca (Manihot esculenta Crantz) |
| title | Ciclo biológico, comportamiento e importancia económica de Amblystira machalana (Heteroptera: Tingidae) en el cultivo de la yuca (Manihot esculenta Crantz) |
| title_full | Ciclo biológico, comportamiento e importancia económica de Amblystira machalana (Heteroptera: Tingidae) en el cultivo de la yuca (Manihot esculenta Crantz) |
| title_fullStr | Ciclo biológico, comportamiento e importancia económica de Amblystira machalana (Heteroptera: Tingidae) en el cultivo de la yuca (Manihot esculenta Crantz) |
| title_full_unstemmed | Ciclo biológico, comportamiento e importancia económica de Amblystira machalana (Heteroptera: Tingidae) en el cultivo de la yuca (Manihot esculenta Crantz) |
| title_short | Ciclo biológico, comportamiento e importancia económica de Amblystira machalana (Heteroptera: Tingidae) en el cultivo de la yuca (Manihot esculenta Crantz) |
| title_sort | ciclo biologico comportamiento e importancia economica de amblystira machalana heteroptera tingidae en el cultivo de la yuca manihot esculenta crantz |
| topic | manihot esculenta tingidae life cycle pest insects losses germplasm pest resistance ciclo vital insectos dañinos pérdidas germoplasma resistencia a las plagas |
| url | https://hdl.handle.net/10568/44260 |
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