Population fluctuation of Diaphorina citri Kuwayama (Hemiptera: Liviidae) and survey of some natural enemies in Ecuador
Diaphorina citri detected in Ecuador for the first time in 2013, is an insect pest of global relevance. It is the main vector of the phloem-limited bacterium Candidatus Liberibacter asiaticus, the causal agent of Huanglongbing (HLB), a devastating disease of citrus trees. During the period from Apri...
| Main Authors: | , , , , , , , |
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| Format: | Artículo |
| Language: | Inglés |
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Ediciones INTA
2019
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.12123/6552 |
| _version_ | 1855483835940077568 |
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| author | Chavez, Y. Castro, C. González, Guillermo F. Castro, Jessenia Peñarrieta Bravo, Soraya Perez-Almeida, Iris Chirinos, Dorys Terezinha Kondo Rodríguez, Demian Takumasa |
| author_browse | Castro, C. Castro, Jessenia Chavez, Y. Chirinos, Dorys Terezinha González, Guillermo F. Kondo Rodríguez, Demian Takumasa Perez-Almeida, Iris Peñarrieta Bravo, Soraya |
| author_facet | Chavez, Y. Castro, C. González, Guillermo F. Castro, Jessenia Peñarrieta Bravo, Soraya Perez-Almeida, Iris Chirinos, Dorys Terezinha Kondo Rodríguez, Demian Takumasa |
| author_sort | Chavez, Y. |
| collection | INTA Digital |
| description | Diaphorina citri detected in Ecuador for the first time in 2013, is an insect pest of global relevance. It is the main vector of the phloem-limited bacterium Candidatus Liberibacter asiaticus, the causal agent of Huanglongbing (HLB), a devastating disease of citrus trees. During the period from April 2016 - July 2017, population fluctuation studies and a search for natural enemies of D. citri were conducted on young shoots of orange jessamine, Murraya paniculata, and Citrus spp. The natural enemies of D. citri were collected in the Provinces of Guayas and Santa Elena, Ecuador. A total of 1660 specimens of predators belonging to five species were collected, consisting of three coccinellids, Cheilomenes sexmaculata, the most abundant species (39.9%, P <0.05), followed by Cycloneda sanguinea (15.8%), and Paraneda pallidula guticollis (4.1%) (Coleoptera: Coccinellidae), an assassin bug, Zelus sp. (Hemiptera: Reduviidae) (17.8%), and the lacewing Ceraeochrysa sp. (Neuroptera: Chrysopidae) (22.4%). The parasitoid wasp Tamarixia radiata also was found, reaching a parasitization rate of 90% of the psyllid nymphs. This study represents the first report of P. pallidula guticollis feeding on D. citri. The diversity of natural enemies and the high level of parasitism detected suggest the importance of natural enemies as biological control agents of this important phytophagous insect pest. The natural control by these beneficial insects would make unnecessary the applications of chemical insecticides that are carried out in Ecuador for the control of this insect, especially at this moment when the HLB causing bacterium has not been reported in Ecuador. |
| format | Artículo |
| id | INTA6552 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2019 |
| publishDateRange | 2019 |
| publishDateSort | 2019 |
| publisher | Ediciones INTA |
| publisherStr | Ediciones INTA |
| record_format | dspace |
| spelling | INTA65522024-11-05T17:19:07Z Population fluctuation of Diaphorina citri Kuwayama (Hemiptera: Liviidae) and survey of some natural enemies in Ecuador Chavez, Y. Castro, C. González, Guillermo F. Castro, Jessenia Peñarrieta Bravo, Soraya Perez-Almeida, Iris Chirinos, Dorys Terezinha Kondo Rodríguez, Demian Takumasa Diaphorina citri Dinámica de Poblaciones Enemigos Naturales Control de Plagas Control Biológico Vectores Psylloidea Population Dynamics Natural Enemies Pest Control Biological Control Vectors Ecuador Diaphorina citri detected in Ecuador for the first time in 2013, is an insect pest of global relevance. It is the main vector of the phloem-limited bacterium Candidatus Liberibacter asiaticus, the causal agent of Huanglongbing (HLB), a devastating disease of citrus trees. During the period from April 2016 - July 2017, population fluctuation studies and a search for natural enemies of D. citri were conducted on young shoots of orange jessamine, Murraya paniculata, and Citrus spp. The natural enemies of D. citri were collected in the Provinces of Guayas and Santa Elena, Ecuador. A total of 1660 specimens of predators belonging to five species were collected, consisting of three coccinellids, Cheilomenes sexmaculata, the most abundant species (39.9%, P <0.05), followed by Cycloneda sanguinea (15.8%), and Paraneda pallidula guticollis (4.1%) (Coleoptera: Coccinellidae), an assassin bug, Zelus sp. (Hemiptera: Reduviidae) (17.8%), and the lacewing Ceraeochrysa sp. (Neuroptera: Chrysopidae) (22.4%). The parasitoid wasp Tamarixia radiata also was found, reaching a parasitization rate of 90% of the psyllid nymphs. This study represents the first report of P. pallidula guticollis feeding on D. citri. The diversity of natural enemies and the high level of parasitism detected suggest the importance of natural enemies as biological control agents of this important phytophagous insect pest. The natural control by these beneficial insects would make unnecessary the applications of chemical insecticides that are carried out in Ecuador for the control of this insect, especially at this moment when the HLB causing bacterium has not been reported in Ecuador. Diaphorina citri, especie detectada en Ecuador por primera vez en 2013, es una plaga de relevancia mundial debido a que es el principal vector de la bacteria Candidatus Liberibacter asiaticus, agente causal del Huanglongbing (HLB), una devastadora enfermedad de los cítricos. Durante el período abril 2016 – julio 2017, se realizaron estudios de fluctuación poblacional e inventario de enemigos naturales de D. citri en brotes jóvenes de azahar de la India, Murraya paniculata y citricos, Citrus spp. Los enemigos naturales fueron colectados en las provincias de Guayas y Santa Elena, Ecuador. Se colectaron un total de 1660 especímenes pertenecientes a cinco especies, entre estos, tres coccinélidos, Cheilomenes sexmaculata, la especie más abundante (39,9%, P<0,05), seguido por Cycloneda sanguinea (15,8%) y Paraneda pallidula guticollis 4,1% (Coleoptera: Coccinellidae), una chinche depredadora, Zelus sp. (Hemiptera: Reduviidae) (17,8%) y la crisopa Ceraeochrysa sp. (Neuroptera: Chrysopidae) (22,4%). La avispita parasítica Tamarixia radiata también fue encontrada, alcanzando un porcentaje de parasitismo del 90% en las ninfas de psílido. Este estudio representa el primer reporte de P. pallidula guticollis alimentándose de D. citri. La diversidad de enemigos naturales y el alto nivel de parasitismo detectado sugieren la importancia de los enemigos naturales como agentes de control biológico de esta importante plaga. El control natural existente haría innecesarias las aplicaciones de insecticidas químicos que se llevan a cabo en el Ecuador para el control de este insecto, especialmente en este momento que el HLB no se ha encontrado en Ecuador. Gerencia de Comunicación Institucional, DG SICyP, INTA Fil: Chavez, Y. Ministerio de Agricultura y Ganadería; Ecuador Fil: Castro, C. Investigador independiente; Ecuador Fil: González, Guillermo F. Investigador independiente; Chile Fil: Castro, Jessenia. Universidad Técnica de Manabí. Facultad de Ingeniería Agronómica; Ecuador Fil: Peñarrieta Bravo, Soraya. Universidad Técnica de Manabí. Facultad de Ingeniería Agronómica; Ecuador Fil: Perez-Almeida, Iris. Universidad ECOTEC. Facultad de Ingenierías. Carrera de Ingeniería Agrónoma; Ecuador Fil: Chirinos, Dorys Terezinha. Universidad Técnica de Manabí. Facultad de Ingeniería Agronómica; Ecuador Fil: Kondo Rodríguez, Demian Takumasa. Corporación colombiana de investigación agropecuaria AGROSAVIA. Centro de Investigación Palmira; Colombia 2019-12-20T14:31:36Z 2019-12-20T14:31:36Z 2019-12 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/6552 0325-8718 1669-2314 eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Ediciones INTA RIA 45 (3) : 449-453 (Diciembre 2019) |
| spellingShingle | Diaphorina citri Dinámica de Poblaciones Enemigos Naturales Control de Plagas Control Biológico Vectores Psylloidea Population Dynamics Natural Enemies Pest Control Biological Control Vectors Ecuador Chavez, Y. Castro, C. González, Guillermo F. Castro, Jessenia Peñarrieta Bravo, Soraya Perez-Almeida, Iris Chirinos, Dorys Terezinha Kondo Rodríguez, Demian Takumasa Population fluctuation of Diaphorina citri Kuwayama (Hemiptera: Liviidae) and survey of some natural enemies in Ecuador |
| title | Population fluctuation of Diaphorina citri Kuwayama (Hemiptera: Liviidae) and survey of some natural enemies in Ecuador |
| title_full | Population fluctuation of Diaphorina citri Kuwayama (Hemiptera: Liviidae) and survey of some natural enemies in Ecuador |
| title_fullStr | Population fluctuation of Diaphorina citri Kuwayama (Hemiptera: Liviidae) and survey of some natural enemies in Ecuador |
| title_full_unstemmed | Population fluctuation of Diaphorina citri Kuwayama (Hemiptera: Liviidae) and survey of some natural enemies in Ecuador |
| title_short | Population fluctuation of Diaphorina citri Kuwayama (Hemiptera: Liviidae) and survey of some natural enemies in Ecuador |
| title_sort | population fluctuation of diaphorina citri kuwayama hemiptera liviidae and survey of some natural enemies in ecuador |
| topic | Diaphorina citri Dinámica de Poblaciones Enemigos Naturales Control de Plagas Control Biológico Vectores Psylloidea Population Dynamics Natural Enemies Pest Control Biological Control Vectors Ecuador |
| url | http://hdl.handle.net/20.500.12123/6552 |
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