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Diagnóstico de la "mosca blanca" en Ecuador

Authors: Valarezo Cely, Oswaldo; Cañarte, E.; Navarrete C, B; Guerrero, J.M.; Arias, V.B.;

Diagnóstico de la "mosca blanca" en Ecuador

Abstract

El diagnóstico de la plaga de “mosca blanca” en el Ecuador tuvo como objetivo principal analizar su impacto a nivel socioeconómico y ambiental, llevándose a cabo durante 1998 una evaluación preliminar y ejecutándose entre los años 1999 y 2000 un muestreo para determinar la identificación y distribución de hospederos, especies y parásitos. En el diagnóstico se entrevistaron 122 productores y 113 técnicos en la Costa, Sierra, Amazonía y las Islas Galápagos, cubriendo 35 localidades de las provincias de: Manabí, Guayas, Los Ríos, Imbabura, Carchi, Orellana, Sucumbíos y Galápagos. En el muestreo se recolectaron datos en 23 localidades en las provincias de: Manabí, Guayas, Los Ríos, Pichincha e Imbabura. Los resultados del diagnóstico indican que este insecto es una plaga con alto impacto en 17 provincias del Ecuador, ocasionando pérdidas entre el 25% y 50% en una cosecha, determinándose que existen 23 hospederos, de los cuales se destacan 11 que se alojan por mayor susceptibilidad en los cultivos de: pimiento, tomate, melón, sandía, pepino, soya y fréjol. Las especies de “mosca blanca” registradas a nivel del país fueron: Aleurotrixus floccosus en las cuatro regiones; Bemisia tabaci y B. argentifolii en la Costa y las Islas Galápagos, y Trialeurodes vaporariorum en la Sierra. Los agricultores para erradicar la “mosca blanca” utilizan 34 químicos que son comercializados como insecticidas, muchos de amplio espectro y extremadamente tóxicos. Una alternativa para eliminar la “mosca blanca” es el control biológico con himenópteros que son parásitos de este insecto como: Amitus fuscipennis, Amitus sp., Encarsia nigricephala, Encarsia sp., y Eretmocerus sp.

Country
France
Related Organizations
Keywords

Science (General), S, Agriculture (General), mosca blanca, biological control, Agriculture, parásitos, S1-972, himenópteros, Q1-390, aleyrodidae, bemisia tabaci, hospederos, trialeurodes vaporariorum, Ecuador, control biológico

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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