Pub Date : 2021-07-28DOI: 10.25100/socolen.v47i2.10243
Mayra Ramos Lima, José de Jesús Ayala-Ortega, Ma. Blanca Nieves Lara-Chávez, Margarita Vargas-Sandoval
Como apoyo a la descripción de la diversidad de ácaros Phytoseiidae y en consecuencia al control biológico, se informa, para México, al ácaro Euseius consors. Éste fue recolectado en plantas de aguacate (Persea americana) en siete municipios del Estado de Michoacán, asociado a Oligonychus persea (Acari: Tetranychidae), uno de los ácaros plagas más importantes en este cultivo. La presente nota es un aporte al conocimiento, base para la descripción de un potencial agente de control biológico y del servicio ecosistémico que potencialmente presta en este agroecosistema.
{"title":"Registro de Euseius consors (Acari: Phytoseiidae) en aguacates de Michoacán, México","authors":"Mayra Ramos Lima, José de Jesús Ayala-Ortega, Ma. Blanca Nieves Lara-Chávez, Margarita Vargas-Sandoval","doi":"10.25100/socolen.v47i2.10243","DOIUrl":"https://doi.org/10.25100/socolen.v47i2.10243","url":null,"abstract":"Como apoyo a la descripción de la diversidad de ácaros Phytoseiidae y en consecuencia al control biológico, se informa, para México, al ácaro Euseius consors. Éste fue recolectado en plantas de aguacate (Persea americana) en siete municipios del Estado de Michoacán, asociado a Oligonychus persea (Acari: Tetranychidae), uno de los ácaros plagas más importantes en este cultivo. La presente nota es un aporte al conocimiento, base para la descripción de un potencial agente de control biológico y del servicio ecosistémico que potencialmente presta en este agroecosistema.\u0000 ","PeriodicalId":54476,"journal":{"name":"Revista Colombiana de Entomologia","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2021-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43697352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-22DOI: 10.25100/socolen.v47i2.10535
Y. Ayala-Sulca, Percy Colos-Galindo, Edwin Portal-Quicaña, Luis Ibarra-Juárez, Reynán Cóndor-Alarcón, Carlos Carrasco-Badajoz, R. Ramírez
La depredación es un factor biótico que influye en la estructura y funcionamiento de los ecosistemas, su efecto se puede cuantificar a través de la respuesta funcional (RF) y numérica en un contexto de éxito-invasión. Utilizamos la RF para entender las relaciones coevolutivas y medir la respuesta biológica de los depredadores Notonecta peruviana y Buenoa fasciata en el control de larvas de cuarto estadio de Aedes aegypti (F1) a diferentes densidades (5, 10, 20, 35, 55 y 80 larvas/litro). Los depredadores en ayuno (48 horas) se introdujeron a los envases de ensayo (un individuo por especie) y se evaluó a las 24 horas la RF, número de presas consumidas (Ne), coeficiente de ataque (a) y tiempo de manipuleo (Th). N. peruviana y B. fasciata desarrollaron una RF tipo II en el consumo de larvas de Ae. aegypti (p ≤ 0,01) y ocuparon cercanos tiempos de manipuleo (Th) (t = –1,93; gl = 12; p = 0,078). N. peruvianadepredó (Ne) el doble de larvas de Ae. aegypti (p ≤ 0,05) y mostró un mayor coeficiente de ataque (a) en relación con B. fasciata (t = 14,92; gl = 12; p = 0,000). Los depredadores N. peruviana y B. fasciata desestabilizaron y consumieron en forma rápida las presas. N. peruviana devoró el doble de larvas atribuible al efecto depredador-presa de origen reciente en comparación al posible ajuste coevolutivo entre B. fasciata y Ae. aegypti. Sería importante considerar a las especies de depredadores en los programas de control larval de mosquitos aedinos.
{"title":"Respuesta biológica cuantitativa de dos depredadores (Heteroptera: Notonectidae) en el control larval de Aedes aegypti (Diptera: Culicidae)","authors":"Y. Ayala-Sulca, Percy Colos-Galindo, Edwin Portal-Quicaña, Luis Ibarra-Juárez, Reynán Cóndor-Alarcón, Carlos Carrasco-Badajoz, R. Ramírez","doi":"10.25100/socolen.v47i2.10535","DOIUrl":"https://doi.org/10.25100/socolen.v47i2.10535","url":null,"abstract":"La depredación es un factor biótico que influye en la estructura y funcionamiento de los ecosistemas, su efecto se puede cuantificar a través de la respuesta funcional (RF) y numérica en un contexto de éxito-invasión. Utilizamos la RF para entender las relaciones coevolutivas y medir la respuesta biológica de los depredadores Notonecta peruviana y Buenoa fasciata en el control de larvas de cuarto estadio de Aedes aegypti (F1) a diferentes densidades (5, 10, 20, 35, 55 y 80 larvas/litro). Los depredadores en ayuno (48 horas) se introdujeron a los envases de ensayo (un individuo por especie) y se evaluó a las 24 horas la RF, número de presas consumidas (Ne), coeficiente de ataque (a) y tiempo de manipuleo (Th). N. peruviana y B. fasciata desarrollaron una RF tipo II en el consumo de larvas de Ae. aegypti (p ≤ 0,01) y ocuparon cercanos tiempos de manipuleo (Th) (t = –1,93; gl = 12; p = 0,078). N. peruvianadepredó (Ne) el doble de larvas de Ae. aegypti (p ≤ 0,05) y mostró un mayor coeficiente de ataque (a) en relación con B. fasciata (t = 14,92; gl = 12; p = 0,000). Los depredadores N. peruviana y B. fasciata desestabilizaron y consumieron en forma rápida las presas. N. peruviana devoró el doble de larvas atribuible al efecto depredador-presa de origen reciente en comparación al posible ajuste coevolutivo entre B. fasciata y Ae. aegypti. Sería importante considerar a las especies de depredadores en los programas de control larval de mosquitos aedinos.","PeriodicalId":54476,"journal":{"name":"Revista Colombiana de Entomologia","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2021-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44219659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-29DOI: 10.25100/socolen.v47i1.8943
Gezilene Fernandes de Souza, G. Leite, F. W. Silva, R. A. Sampaio, Júlia Letícia Silva, Gustavo Leal Texeira, M. A. Soares, J. Zanuncio
Sewage sludge is a nitrogen-rich organic compound, which can be used to aid development in plants such as Platycyamus regnellii (Fabaceae), in the recovery of degraded areas. This study aimed to assess the bottom-up effects on leaf mass and percentage ofground cover (leaf litter, herbaceous plants, and grasses) in P. regnellii trees fertilized (or not) with dehydrated sewage sludge and arthropod communities over 24 months. Platycyamus regnellii trees fertilized with dehydrated sewage sludge presented significantly more leavesper branch, branches per tree, and a higher percentage of ground cover compared to unfertilized trees. Phenacoccus sp. (Pseudococcidae) was the most abundant phytophagous insect associated with P. regnellii trees. Fertilization did not affect the abundance, diversity, and species richness of Hemiptera phytophagous on P. regnellii trees. However, fertilizedtrees presented higher abundance and species richness of trophobiont-tending ants compared to unfertilized trees, with Camponotus sp. being the most abundant regardless of the treatment. Fertilized P. regnellii trees also presented higher species richness of natural enemies compared to unfertilized ones, with Aranae and Dolichopodidae being the most abundant. We concluded that fertilization with dehydrated sewage sludge improved P. regnellii trees leafmass and ground cover and increased the diversity of trophobiont-tending ants and natural enemies. To our knowledge, this is the first study on the arthropods community associated withthis tree species. This suggests that upon fertilization, P. renellii trees are useful for ecological restoration in severely disturbed areas.
{"title":"Bottom-up effects on arthropod communities in Platycyamus regnellii (Fabaceae) fertilized with dehydrated sewage sludge","authors":"Gezilene Fernandes de Souza, G. Leite, F. W. Silva, R. A. Sampaio, Júlia Letícia Silva, Gustavo Leal Texeira, M. A. Soares, J. Zanuncio","doi":"10.25100/socolen.v47i1.8943","DOIUrl":"https://doi.org/10.25100/socolen.v47i1.8943","url":null,"abstract":"Sewage sludge is a nitrogen-rich organic compound, which can be used to aid development in plants such as Platycyamus regnellii (Fabaceae), in the recovery of degraded areas. This study aimed to assess the bottom-up effects on leaf mass and percentage ofground cover (leaf litter, herbaceous plants, and grasses) in P. regnellii trees fertilized (or not) with dehydrated sewage sludge and arthropod communities over 24 months. Platycyamus regnellii trees fertilized with dehydrated sewage sludge presented significantly more leavesper branch, branches per tree, and a higher percentage of ground cover compared to unfertilized trees. Phenacoccus sp. (Pseudococcidae) was the most abundant phytophagous insect associated with P. regnellii trees. Fertilization did not affect the abundance, diversity, and species richness of Hemiptera phytophagous on P. regnellii trees. However, fertilizedtrees presented higher abundance and species richness of trophobiont-tending ants compared to unfertilized trees, with Camponotus sp. being the most abundant regardless of the treatment. Fertilized P. regnellii trees also presented higher species richness of natural enemies compared to unfertilized ones, with Aranae and Dolichopodidae being the most abundant. We concluded that fertilization with dehydrated sewage sludge improved P. regnellii trees leafmass and ground cover and increased the diversity of trophobiont-tending ants and natural enemies. To our knowledge, this is the first study on the arthropods community associated withthis tree species. This suggests that upon fertilization, P. renellii trees are useful for ecological restoration in severely disturbed areas.","PeriodicalId":54476,"journal":{"name":"Revista Colombiana de Entomologia","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2021-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46888204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-18DOI: 10.25100/socolen.v47i1.9279
Joselyn Briggite Averos, Jessenia Castro-Olaya, Malena Martínez-Chevez, M. Guachambala-Cando, S. Peñarrieta-Bravo, Dorys Chirinos-Torres, Luz García-Cruzatty
El objetivo de este estudio fue determinar la fluctuación poblacional de Premnobius cavipennis y el efecto de la altura de trampa en plantaciones de balso (Ochroma pyramidale) en las localidades de El Vergel, El Empalme y Guapara en Ecuador. Se usaron trampas de intercepción de vuelo con alcohol como atrayente, colocadas a uno, cuatro y ocho metros de alto. La recolecta y evaluación se realizó cada semana durante un año por localidad. Las poblaciones de P. cavipennis, fluctuaron durante el año, con máximas poblacionales en el periodo lluvioso en las tres localidades. En El Vergel se encontró mayor abundancia con 2.382 individuos, máxima poblacional en diciembre. En El Empalme se capturaron 1.263 individuos, con alzas poblacionales en enero y abril. En Guapara se registraron 525 individuos, con un pico poblacional en marzo. Los individuos de P. cavipennis se capturaron en las tres alturas de las trampas en las tres localidades. Hubo diferencias altamente significativas entre las alturas con un mayor efecto de altura de trampa en la captura de individuos a un metro, comportamiento que fue igual en las tres localidades.
{"title":"Fluctuación poblacional de Premnobius cavipennis (Coleoptera: Curculionidae: Scolytinae) en plantaciones de balso (Ochroma pyramidale) en la zona central del litoral ecuatoriano","authors":"Joselyn Briggite Averos, Jessenia Castro-Olaya, Malena Martínez-Chevez, M. Guachambala-Cando, S. Peñarrieta-Bravo, Dorys Chirinos-Torres, Luz García-Cruzatty","doi":"10.25100/socolen.v47i1.9279","DOIUrl":"https://doi.org/10.25100/socolen.v47i1.9279","url":null,"abstract":"El objetivo de este estudio fue determinar la fluctuación poblacional de Premnobius cavipennis y el efecto de la altura de trampa en plantaciones de balso (Ochroma pyramidale) en las localidades de El Vergel, El Empalme y Guapara en Ecuador. Se usaron trampas de intercepción de vuelo con alcohol como atrayente, colocadas a uno, cuatro y ocho metros de alto. La recolecta y evaluación se realizó cada semana durante un año por localidad. Las poblaciones de P. cavipennis, fluctuaron durante el año, con máximas poblacionales en el periodo lluvioso en las tres localidades. En El Vergel se encontró mayor abundancia con 2.382 individuos, máxima poblacional en diciembre. En El Empalme se capturaron 1.263 individuos, con alzas poblacionales en enero y abril. En Guapara se registraron 525 individuos, con un pico poblacional en marzo. Los individuos de P. cavipennis se capturaron en las tres alturas de las trampas en las tres localidades. Hubo diferencias altamente significativas entre las alturas con un mayor efecto de altura de trampa en la captura de individuos a un metro, comportamiento que fue igual en las tres localidades.","PeriodicalId":54476,"journal":{"name":"Revista Colombiana de Entomologia","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2021-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45511131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-15DOI: 10.25100/socolen.v47i1.9364
Diana Obregon-Corredor, Francisco Javier Hernández-Guzmán, Diana Katherinne Ríos-Moyano
Se evaluó la diversidad y dinámica poblacional de la artropofauna presente en cultivos de arroz bajo los sistemas de siembra secano y riego, con dos variedades de arroz (Fedearroz 174 y Fedearroz 733) y en tres densidades de siembra (60, 100 y 180 kg/ha) en relación a diferentes variables climáticas. Para la recolección de especímenes, se realizaron 10 pases dobles de red entomológica cada ocho días desde la emergencia hasta el inicio de la fase de maduración del grano. Los morfotipos encontrados fueron identificados y agrupados según su tipo de interacción con el cultivo en chupadores, masticadores, depredadores y parasitoides. Las variables climáticas más relevantes se seleccionaron con un análisis de Random Forest. Se identificaron 126 morfotipos en 12 órdenes. La mayor riqueza se encontró en Hemiptera, Coleoptera y Diptera, así como en el grupo de chupadores. No se encontraron diferencias en la abundancia o riqueza de artrópodos entre variedades o densidades de siembra. El sistema de siembra con riego presentó una mayor abundancia total de artrópodos en comparación con el sistema secano, pero en este sistema hubo una mayor riqueza de especies. Las poblaciones de parasitoides y depredadores se correlacionaron negativamente con los masticadores, pero no se presentó ningún efecto sobre los chupadores. La temperatura y la humedad relativa fueron las variables climáticas de mayor relevancia en la dinámica de los artrópodos. Estos resultados contribuyen para el desarrollo de sistemas de monitoreo y manejo de plagas que tengan en cuenta las dinámicas de interacción entre grupos ecológicos y el efecto del clima local.
{"title":"Efecto de los factores climáticos, variedades y densidades de siembra en la dinámica de artrópodos en cultivos de arroz en Yopal-Casanare, Colombia","authors":"Diana Obregon-Corredor, Francisco Javier Hernández-Guzmán, Diana Katherinne Ríos-Moyano","doi":"10.25100/socolen.v47i1.9364","DOIUrl":"https://doi.org/10.25100/socolen.v47i1.9364","url":null,"abstract":"Se evaluó la diversidad y dinámica poblacional de la artropofauna presente en cultivos de arroz bajo los sistemas de siembra secano y riego, con dos variedades de arroz (Fedearroz 174 y Fedearroz 733) y en tres densidades de siembra (60, 100 y 180 kg/ha) en relación a diferentes variables climáticas. Para la recolección de especímenes, se realizaron 10 pases dobles de red entomológica cada ocho días desde la emergencia hasta el inicio de la fase de maduración del grano. Los morfotipos encontrados fueron identificados y agrupados según su tipo de interacción con el cultivo en chupadores, masticadores, depredadores y parasitoides. Las variables climáticas más relevantes se seleccionaron con un análisis de Random Forest. Se identificaron 126 morfotipos en 12 órdenes. La mayor riqueza se encontró en Hemiptera, Coleoptera y Diptera, así como en el grupo de chupadores. No se encontraron diferencias en la abundancia o riqueza de artrópodos entre variedades o densidades de siembra. El sistema de siembra con riego presentó una mayor abundancia total de artrópodos en comparación con el sistema secano, pero en este sistema hubo una mayor riqueza de especies. Las poblaciones de parasitoides y depredadores se correlacionaron negativamente con los masticadores, pero no se presentó ningún efecto sobre los chupadores. La temperatura y la humedad relativa fueron las variables climáticas de mayor relevancia en la dinámica de los artrópodos. Estos resultados contribuyen para el desarrollo de sistemas de monitoreo y manejo de plagas que tengan en cuenta las dinámicas de interacción entre grupos ecológicos y el efecto del clima local.","PeriodicalId":54476,"journal":{"name":"Revista Colombiana de Entomologia","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2021-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43531229","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-10DOI: 10.25100/SOCOLEN.V47I1.8445
Germano Leão Demolin Leite, Edilson Paulo Rodrigues Bispo, Anarelly Costa Alvarenga, P. D. De Paulo, M. A. Soares, P. G. Lemes
Weeds should be controlled with low impact methods and selective agrochemicals that have little or no effect on non-target organisms. This study aimed to evaluate the effect of the herbicide atrazine (triazine class) on 10 Trichogrammatidae (Hymenoptera) species. A female of 10 species of these natural enemies was individually placed in a glass test tube (free-choice test) with two paper cards containing 45 Anagasta (Ephestia) kuehniella (Lepidoptera: Pyralidae) eggs (treatment and control), with 10 replications. The cards were sprayed with the herbicide atrazine at 8.07 L/ha; the control was sprayed with distilled water. Parasitism by these natural enemies was allowed for 48 h. Atrazine changes the behavior of female parasitoids, reducing the parasitism (≈ 71 %) and emergence (≈ 74 %) rates and sex ratio (≈ 74 %) of the Trichogrammatidae species, except for Trichogramma galloi and T. bennetti. No females emerged from eggs parasitized by T. acacioi, Trichogrammatoidea annulata, T. atopovirilia, T. bruni, T. brasiliensis, T. demoraesi, and T. soaresi with atrazine. The results revealed that atrazine herbicide is harmless to T. bennetti and T. galloi, but it was moderately harmful (80 – 99 % reduction) to the other Trichogrammatidae species based on the parasitism and emergence rates.
{"title":"Toxicological and behavioral impacts of atrazine on Trichogrammatidae (Hymenoptera) in choice tests","authors":"Germano Leão Demolin Leite, Edilson Paulo Rodrigues Bispo, Anarelly Costa Alvarenga, P. D. De Paulo, M. A. Soares, P. G. Lemes","doi":"10.25100/SOCOLEN.V47I1.8445","DOIUrl":"https://doi.org/10.25100/SOCOLEN.V47I1.8445","url":null,"abstract":"Weeds should be controlled with low impact methods and selective agrochemicals that have little or no effect on non-target organisms. This study aimed to evaluate the effect of the herbicide atrazine (triazine class) on 10 Trichogrammatidae (Hymenoptera) species. A female of 10 species of these natural enemies was individually placed in a glass test tube (free-choice test) with two paper cards containing 45 Anagasta (Ephestia) kuehniella (Lepidoptera: Pyralidae) eggs (treatment and control), with 10 replications. The cards were sprayed with the herbicide atrazine at 8.07 L/ha; the control was sprayed with distilled water. Parasitism by these natural enemies was allowed for 48 h. Atrazine changes the behavior of female parasitoids, reducing the parasitism (≈ 71 %) and emergence (≈ 74 %) rates and sex ratio (≈ 74 %) of the Trichogrammatidae species, except for Trichogramma galloi and T. bennetti. No females emerged from eggs parasitized by T. acacioi, Trichogrammatoidea annulata, T. atopovirilia, T. bruni, T. brasiliensis, T. demoraesi, and T. soaresi with atrazine. The results revealed that atrazine herbicide is harmless to T. bennetti and T. galloi, but it was moderately harmful (80 – 99 % reduction) to the other Trichogrammatidae species based on the parasitism and emergence rates.","PeriodicalId":54476,"journal":{"name":"Revista Colombiana de Entomologia","volume":"7 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2021-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74441524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-05-28DOI: 10.25100/SOCOLEN.V47I1.7661
Eloina Mesa-Fúquen, Juan Sebastián Hernández-Henández, Jhonatan Eduardo Campero
The analysis of data coming from the counting of events must consider tools that are appropriate to deal with this type of variable. A valid approach to cope with this task consists of using the Generalized Linear Model (GLM). The use of GLM allows working with density functions such as Poisson or Negative Binomial. This work presents the results of analyzing the data from an experiment carried out at the Research Station of Cenipalma located in the municipality of Barrancabermeja (Colombia). The experiment was established to evaluate, at the field level, the entomopathogenic fungus Purpureocillium lilacinum as a strategy to control the population of the lace bug, Leptopharsa gibbicarina. The experiment was carried out in two plots, in one of them, the control of L. gibbicarina with P. lilacinum was implemented as suggested by the Entomology research program of Cenipalma and, in the other plot there was no control strategy. The data were analyzed by using GLM and two different density functions (Poisson and the negative binomial). Results showed statistically significant differences between the treatments. The estimator of the maximum likelihood associated with the P. lilacinum treatment indicated that the application of the entomopathogenic fungus reduced the populations of L. gibbicarina with a rate of incidence of 0.28 times more than the control.
{"title":"Uso de modelos lineales generalizados en el conteo de Leptopharsa gibbicarina (Hemiptera: Tingidae) en palma de aceite","authors":"Eloina Mesa-Fúquen, Juan Sebastián Hernández-Henández, Jhonatan Eduardo Campero","doi":"10.25100/SOCOLEN.V47I1.7661","DOIUrl":"https://doi.org/10.25100/SOCOLEN.V47I1.7661","url":null,"abstract":"The analysis of data coming from the counting of events must consider tools that are appropriate to deal with this type of variable. A valid approach to cope with this task consists of using the Generalized Linear Model (GLM). The use of GLM allows working with density functions such as Poisson or Negative Binomial. This work presents the results of analyzing the data from an experiment carried out at the Research Station of Cenipalma located in the municipality of Barrancabermeja (Colombia). The experiment was established to evaluate, at the field level, the entomopathogenic fungus Purpureocillium lilacinum as a strategy to control the population of the lace bug, Leptopharsa gibbicarina. The experiment was carried out in two plots, in one of them, the control of L. gibbicarina with P. lilacinum was implemented as suggested by the Entomology research program of Cenipalma and, in the other plot there was no control strategy. The data were analyzed by using GLM and two different density functions (Poisson and the negative binomial). Results showed statistically significant differences between the treatments. The estimator of the maximum likelihood associated with the P. lilacinum treatment indicated that the application of the entomopathogenic fungus reduced the populations of L. gibbicarina with a rate of incidence of 0.28 times more than the control.","PeriodicalId":54476,"journal":{"name":"Revista Colombiana de Entomologia","volume":"1 1","pages":"2-5"},"PeriodicalIF":0.4,"publicationDate":"2021-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80776710","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-05-27DOI: 10.25100/SOCOLEN.V47I1.8945
S. M. Jahnke, Robin Gebbers, Daniel Capella Zanotta, Joachim Intreβ
Una alternativa al uso de inseticidas sinteticos en el control de especies importantes de moscas de la fruta (Tephritidae) es la tecnica del insecto esteril (TIE). La TIE se basa en liberaciones masivas de machos esteriles (sometidos a radiacion) para controlar una poblacion de plagas. Para especies de importancia como Rhagoletis pomonella, Bractocera oleae y Anastrepha fraterculus, es un desafio diferenciar los machos de las hembras en el estadio pupal. Aunque para algunas especies se liberan hembras esteriles en campo, esto no es deseable en Anastrepha spp., ya que puede ocasionar dano por puncion. Por lo tanto, hemos investigado imagenes hiperespectrales y RGB para classificar el sexo en pupas de A. fraterculus. Nuestro objetivo fue discriminar, a traves de la descripcion de espectros RGB y de perfiles hiperespectrales, machos y hembras en diferentes estadios de desarrollo pupal. Se obtuvieron imagenes de pupas de diferentes tiempos de desarrollo de grados-dia (GD). Los perfiles hiperespectrales de las pupas de 288, 345 y 403 GD mostraron diferencias, indicando que el tono de la pupa se altera durante el desarrollo. En el espectro NIR (800 a 1.700 nm) se observo una mayor reflectancia entre 1.100 y 1.400 nm. En estas bandas ocurren diferencias en la desviacion estandar de la reflectancia entre machos y hembras. En las imagenes RGB se observaron diferencias en el angulo de variacion radiometrica, desde la parte superior hasta la parte basal de las pupas. Para las hembras, el angulo de variacion radiometrica fue mayor (26°) que para los machos (15°). Por lo tanto, es posible determinar caracteristicas discriminantes utilizando los perfiles espectrales, tecnicas de imagen y analisis de datos para separar los sexos.
{"title":"Diferencias en las propiedades ópticas de pupas de machos y hembras de Anastrepha fraterculus (Diptera: Tephritidae)","authors":"S. M. Jahnke, Robin Gebbers, Daniel Capella Zanotta, Joachim Intreβ","doi":"10.25100/SOCOLEN.V47I1.8945","DOIUrl":"https://doi.org/10.25100/SOCOLEN.V47I1.8945","url":null,"abstract":"Una alternativa al uso de inseticidas sinteticos en el control de especies importantes de moscas de la fruta (Tephritidae) es la tecnica del insecto esteril (TIE). La TIE se basa en liberaciones masivas de machos esteriles (sometidos a radiacion) para controlar una poblacion de plagas. Para especies de importancia como Rhagoletis pomonella, Bractocera oleae y Anastrepha fraterculus, es un desafio diferenciar los machos de las hembras en el estadio pupal. Aunque para algunas especies se liberan hembras esteriles en campo, esto no es deseable en Anastrepha spp., ya que puede ocasionar dano por puncion. Por lo tanto, hemos investigado imagenes hiperespectrales y RGB para classificar el sexo en pupas de A. fraterculus. Nuestro objetivo fue discriminar, a traves de la descripcion de espectros RGB y de perfiles hiperespectrales, machos y hembras en diferentes estadios de desarrollo pupal. Se obtuvieron imagenes de pupas de diferentes tiempos de desarrollo de grados-dia (GD). Los perfiles hiperespectrales de las pupas de 288, 345 y 403 GD mostraron diferencias, indicando que el tono de la pupa se altera durante el desarrollo. En el espectro NIR (800 a 1.700 nm) se observo una mayor reflectancia entre 1.100 y 1.400 nm. En estas bandas ocurren diferencias en la desviacion estandar de la reflectancia entre machos y hembras. En las imagenes RGB se observaron diferencias en el angulo de variacion radiometrica, desde la parte superior hasta la parte basal de las pupas. Para las hembras, el angulo de variacion radiometrica fue mayor (26°) que para los machos (15°). Por lo tanto, es posible determinar caracteristicas discriminantes utilizando los perfiles espectrales, tecnicas de imagen y analisis de datos para separar los sexos.","PeriodicalId":54476,"journal":{"name":"Revista Colombiana de Entomologia","volume":"10 1","pages":"1-10"},"PeriodicalIF":0.4,"publicationDate":"2021-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76975599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-05-21DOI: 10.25100/SOCOLEN.V47I1.8944
Ihab H. Ghabeish, M. Sweiss, G. Anfoka
Whiteflies are economically important plant pests that cause damage to crops worldwide. This study aimed to update the status of whiteflies in Jordan by combining the classical morphological identification and the DNA markers using the mitochondrial cytochrome oxidase I (mtCOI) gene. Over the course of three consecutive years, 111 whiteflies were collected from different geographical regions and different plant hosts in Jordan. The results showed that, in addition to Bemisia tabaci, another nine different whitefly species were identified, including two species that were recorded for the first time in Jordan: Africaleurodes coffeacola, and Tetraleurodes neemani. A special focus has been given to economically important plant pests like the B. tabaci species complex. Three different diagnostic techniques were used to identify B. tabaci putative species based on mtCOI gene. All the collected samples of B. tabaci species complex were identified as Middle East–Asia Minor 1 (MEAM1) putative species.
{"title":"Updated status of whiteflies (Hemiptera: Aleyrodidae) in Jordan with emphasis on the Bemisia tabaci species complex","authors":"Ihab H. Ghabeish, M. Sweiss, G. Anfoka","doi":"10.25100/SOCOLEN.V47I1.8944","DOIUrl":"https://doi.org/10.25100/SOCOLEN.V47I1.8944","url":null,"abstract":"Whiteflies are economically important plant pests that cause damage to crops worldwide. This study aimed to update the status of whiteflies in Jordan by combining the classical morphological identification and the DNA markers using the mitochondrial cytochrome oxidase I (mtCOI) gene. Over the course of three consecutive years, 111 whiteflies were collected from different geographical regions and different plant hosts in Jordan. The results showed that, in addition to Bemisia tabaci, another nine different whitefly species were identified, including two species that were recorded for the first time in Jordan: Africaleurodes coffeacola, and Tetraleurodes neemani. A special focus has been given to economically important plant pests like the B. tabaci species complex. Three different diagnostic techniques were used to identify B. tabaci putative species based on mtCOI gene. All the collected samples of B. tabaci species complex were identified as Middle East–Asia Minor 1 (MEAM1) putative species.","PeriodicalId":54476,"journal":{"name":"Revista Colombiana de Entomologia","volume":"48 1","pages":"1-9"},"PeriodicalIF":0.4,"publicationDate":"2021-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86830411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-05-14DOI: 10.25100/SOCOLEN.V47I1.7806
Víctor Tello-Mercado, M. Zarzar-Maza
The effect of three different types of crop management on parasitism of Aleurothrixus floccosus in the Atacama Desert was studied. The studied parasitoids were: Cales noacki, Eretmocerus paulistus, Amitus spiniferus, and the hyperparasitoid Signiphora sp. The study was performed in Pica Oasis, located in the Atacama Desert, Tarapacá region, Chile, from February 2009 until February 2011. Three orchards were selected based on the type of plantation: the Bajo Miraflores Sector with plantation frames (5 x 5 m) and pruning management; the San Lorenzo Sector without plantation frames or pruning management; and Miraflores Sector that represents a mixed system between both of them. Two sampling procedures were applied. One was of the absolute type, in which 36 leaves per tree were collected from four labeled trees that were sampled twice a month, and the other was collected through yellow sticky chrome-attracting traps set in the central part of each of the labeled trees used for absolute sampling. The results indicate that in the Oasis of Pica, the different stages of A. floccosus are distributed throughout the year; with all stages represented during every month. The three sampled sectors exhibited different population levels of A. floccosus. The hyperparasitoid Signophora sp. presented the highest population density. The average parasitism percentage of A. floccosus in Pica was lower than 15 %.
研究了阿塔卡马沙漠3种不同作物管理方式对絮状粉虱寄生的影响。研究的拟寄生蜂为:卡勒斯·诺acki、绿僵螨、刺螨和超拟寄生蜂。研究于2009年2月至2011年2月在智利塔拉帕ac地区阿塔卡马沙漠的Pica绿洲进行。根据种植园类型选择了三个果园:Bajo Miraflores区，种植园框架(5 x 5米)和修剪管理;圣洛伦索地区没有种植园框架或修剪管理;以及米拉弗洛雷斯区，代表了两者之间的混合系统。采用了两种抽样程序。一种是绝对型，从4棵标记的树中收集每棵树36片叶子，每月采样两次;另一种是通过在每棵标记的树的中心设置黄色粘性引诱铬的陷阱来收集，用于绝对采样。结果表明:在Pica绿洲，絮蚤的不同生长阶段分布在一年四季;每个月都有不同的阶段。3个采样区均表现出不同的絮蚤种群水平。超寄生蜂的种群密度最高。异食癖蝇的平均寄生率低于15%。
{"title":"Fluctuación poblacional y parasitismo de Aleurothrixus floccosus (Hemiptera: Aleyrodidae) en cítricos del Desierto de Atacama, Chile","authors":"Víctor Tello-Mercado, M. Zarzar-Maza","doi":"10.25100/SOCOLEN.V47I1.7806","DOIUrl":"https://doi.org/10.25100/SOCOLEN.V47I1.7806","url":null,"abstract":"The effect of three different types of crop management on parasitism of Aleurothrixus floccosus in the Atacama Desert was studied. The studied parasitoids were: Cales noacki, Eretmocerus paulistus, Amitus spiniferus, and the hyperparasitoid Signiphora sp. The study was performed in Pica Oasis, located in the Atacama Desert, Tarapacá region, Chile, from February 2009 until February 2011. Three orchards were selected based on the type of plantation: the Bajo Miraflores Sector with plantation frames (5 x 5 m) and pruning management; the San Lorenzo Sector without plantation frames or pruning management; and Miraflores Sector that represents a mixed system between both of them. Two sampling procedures were applied. One was of the absolute type, in which 36 leaves per tree were collected from four labeled trees that were sampled twice a month, and the other was collected through yellow sticky chrome-attracting traps set in the central part of each of the labeled trees used for absolute sampling. The results indicate that in the Oasis of Pica, the different stages of A. floccosus are distributed throughout the year; with all stages represented during every month. The three sampled sectors exhibited different population levels of A. floccosus. The hyperparasitoid Signophora sp. presented the highest population density. The average parasitism percentage of A. floccosus in Pica was lower than 15 %.","PeriodicalId":54476,"journal":{"name":"Revista Colombiana de Entomologia","volume":"8 1","pages":"3"},"PeriodicalIF":0.4,"publicationDate":"2021-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87993625","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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