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Susceptibilidad a insecticidas en dos poblaciones mexicanas del salerillo, Bactericera cockerelli (Sulc) (Hemiptera: Triozidae)
Vega-Gutiérrez, Marco T.;Rodríguez-Maciel, J. Concepción;Díaz-Gómez, Ovidio;Bujanos-Mu?iz, Rafael;Mota-Sánchez, David;Martínez-Carrillo, J. Luis;Lagunes-Tejeda, ángel;Garzón-Tiznado, José A.;
Agrociencia , 2008,
Abstract: the tomato-potato psyllid, bactericera cockerelli (sulc.), is one of the most important pests of chili pepper (capsicum spp.), tomato (lycopersicon esculentum mill.), and potato (solanum tuberosum l.) in méxico. insecticides are used for its control, and the farmers perceive that their biological effectiveness is not satisfactory. in nymphs, lc50, lc95, confidence limits at 95%, values of resistance ratio at a level of lc50 (rr50) and lc95 (rr95) to six insecticides were determined in one susceptible and two field-collected populations (el huizache, state of san luis potosí, and arteaga-galeana of coahuila and nuevo león). all the populations were susceptible to fenpropathrin, abamectin, cyfluthrin, dimetoate, esfenvalerate, and pyriproxyfen. it is documented that the lack of biological effectiveness in field is not due to resistance to insecticides.
Toxicidad de spiromesifen en los estados biológicos de Bactericera cockerelli (Sulc) (Hemiptera: Triozidae)
Tucuch-Haas, Jorge I;Rodríguez-Maciel, J Concepción;Lagunes-Tejeda, ángel;Silva-Aguayo, Gonzalo;Aguilar-Medel, Sotero;Robles-Bermudez, Agustín;Gonzalez-Camacho, Juan M;
Neotropical Entomology , 2010, DOI: 10.1590/S1519-566X2010000300019
Abstract: spiromesifen is an insecticide that inhibits the synthesis of lipids and, in mexico, its use against the tomato-potato psyllid, bactericera cockerelli (sulc), on chili pepper (capsicum annum), tomato (lycopersicon sculentum) and potato (solanum tuberosum) began in 2005; however more information is needed to understand its toxicity on this insect pest. the aim of this research was to determine the toxicity of spiromesifen against each of the biological stages of tomato-potato psyllid, its effect on fertility and viability of eggs deposited by treated females, as well as the female preference to lay eggs on treated and non treated plants. the relative toxicity at 95% mortality (highest lc95 value /lc95 value of the respective biological stage) of spiromesifen in egg, nymph 1, nymph 2, nymph 3, nymph 4, and nymph 5 were 517.5; 31316.2; 2950.1; 315.6; 18.2 and 1-fold, respectively. there were no differences in the toxicity of spiromesifen between adult males and females. the number of laid eggs was reduced as the spiromesifen concentration used to treat female increased and egg hatch was reduced in all tested doses. in the "no choice" test, females deposited 38.6 ± 2.01 eggs by leaf of non treated chili pepper type jalape?o, while in the treated with 360 mg l-1 we observed 0.3 ± 0.08 eggs by leaf. in the "choice" test, the oviposition decreased as the dose increased. there were no eggs on plants treated with 2400 mg l-1 of spiromesifen.
Records of Tamarixia radiata (Hymenoptera: Eulophidae) in Northwestern Argentina
Lizondo,Marcelo J.; Gastaminza,Gerardo; Costa,Valmir A.; Augier,Lucrecia; Gómez Torres,Mariuxi L.; Willink,Eduardo; Parra,José R. P.;
Revista industrial y agr?-cola de Tucum??n , 2007,
Abstract: the presence of tamarixia radiata waterston (hymenoptera: eulophidae) is reported for the first time in northwestern argentina.
Records of Tamarixia radiata (Hymenoptera: Eulophidae) in Northwestern Argentina Presencia de Tamarixia radiata (Hymenoptera: Eulophidae) en el noroeste argentino  [cached]
Marcelo J. Lizondo,Gerardo Gastaminza,Valmir A. Costa,Lucrecia Augier
Revista Industrial y Agrícola de Tucumán , 2007,
Abstract: The presence of Tamarixia radiata Waterston (Hymenoptera: Eulophidae) is reported for the first time in Northwestern Argentina. La presencia de Tamarixia radiata Waterston (Hymenoptera: Eulophidae) fue detectada por primera vez en el noroeste argentino.
Distribución de la punta morada y Bactericera cockerelli Sulc. en las principales zonas productoras de papa en México
Rubio Covarrubias, Oswaldo ángel;Almeyda León, Isidro Humberto;Ireta Moreno, Javier;Sánchez Salas, José Alfredo;Fernández Sosa, Rogelio;Borbón Soto, José Trinidad;Díaz Hernández, Carlos;Garzón Tiznado, José Antonio;Rocha Rodríguez, Ramiro;Cadena Hinojosa, Mateo Armando;
Agricultura técnica en México , 2006,
Abstract: symptoms of potato purple top are caused by phytoplasmas transmitted by leafhoppers (homoptera: cicadelidae) and the potato psyllid bactericera cockerelli sulc. (hemiptera: triozidae). similar symptoms may also be caused by a toxin that the potato psyllid injects when it is feeding from the phloem sap. to determine the importance and distribution of the potato purple top disease in mexico, a field sampling was conducted in 2001 in the main potato producing areas. in each area, plants with the disease symptoms were sampled to investigate the presence of phytoplasmas by using the polymerase chain reactions technique. yellow sticky insects traps were installed in each potato producing area and trapped leafhoppers and b. cockerelli counted. the percentages of the plant samples that were positive in each potato area were: state of mexico 29%, coahuila-nuevo leon 50%, tlaxcala 17%, guanajuato 31%, jalisco 75% and sonora 10%. leafhoppers were present in most of the potato regions, only in the high lands of tapalpa, jalisco area the leafhopper populations was low and b. cockerelli was not found. the high population of the disease vectors found in most potato producing areas in mexico and the high percentages (10-75%) of the plant samples infected by phytoplasmas indicate their importance on restraining the potato production in mexico.
Asociación de Hemiptera: Triozidae con la enfermedad 'permanente del tomate' en México
Garzón-Tiznado, José Antonio;Cárdenas-Valenzuela, Oralia Guadalupe;Bujanos-Mu?iz, Rafael;Marín-Jarillo, Antonio;Becerra-Flora, Alicia;Velarde-Felix, Sixto;Reyes-Moreno, Cuauhtémoc;González-Chavira, Mario;Martínez-Carrillo, José Luis;
Agricultura técnica en México , 2009,
Abstract: the disease known as 'permanente del tomate' produces the greatest damage in those regions where tomato plantings are established in the spring-summer season. the etiology of this disease has been related to non-cultured type bacteria and its transmission with the psillid bactericera (=paratrioza) cockerelli (sulc) (hemiptera: triozidae). the objective of this research was to discern the association between the psillid and the disease. the obtention of inoculum and the bioassay s for transmission were performed in entomological cages under greenhouse conditions. transmission from tomato plant to tomato plant was performed through grafting from plants that showed the characteristic symptoms of the disease in the field. tissue from diseased plants and from the psillid was analyzed by pcr, hybridization and sequenciation of cloned products. the reproduction of the disease symptoms was observed in tomato plants grafted and in plants exposed to b. cockerelli. bioassays of transmission of this pathogen by the insect were positive, and the acquisition periods were: 15 min, 2, 3 and 48 h for nymphs and 30 min, 2, 3, 8 and 48 h for adults, with transmission periods of 15 min, 2 and 24 h for adults and 24 h of incubation. the product of pcr of b cockerelli was cloned and partially sequenced and registered in the gene bank with the number dq355020, this sequence presented 99% similarity with accessions dq355018 and dq355019 obtained from diseased tomato plants with permanente del tomate, which confirms the association between the insect and the disease.
Primer Registro de Tamarixia radiata (Waterston, 1922) (Hymenoptera: Eulophidae) en Colombia Record of Tamarixia radiata (Waterston, 1922) (Hymenoptera: Eulophidae) in Colombia
Everth Emilio Ebratt Ravelo,Leidy Tatiana Rubio González,Valmir Antonio Costa,Edna Milena Zambrano Gómez
Revista Facultad Nacional de Agronomía, Medellín , 2011,
Abstract: Tamarixia radiata es un ectoparasitoide idiobionte de Diaphorina citri Kuwayama (Hemiptera: Psyllidae); la especie fue descrita a partir de material recogido en la India. Ha sido introducida en muchas regiones intencional o accidentalmente para el control biológico de D. citri, incluyendo algunos países asiáticos. Se sabe de su presencia en el sur de áfrica y las Américas. En Suramérica, se reportó en Brasil, Argentina y ahora en Colombia. Tamarixia radiata is an ectoparasitoid idiobionte of Diaphorina citri Kuwayama (Hemiptera: Psyllidae); the species was described from material collected in India. It has been introduced in many regions intentionally or accidentally, to biological control of D. citri, including some Asian countries. It is know about its presence in southern Africa and the Americas. In South America, it is present in Brazil, Argentina and now in Colombia.
Diaphorina citri (Kuwayama, 1907) and Tamarixia radiata (Waterson, 1922) in citrus crops of Cundinamarca, Colombia
Ebratt Ravelo Everth Emilio,Rubio-González Leidy Tatiana,Costa Valmir Antonio,Castro-ávila ángela Patricia
Agronomía Colombiana , 2011,
Abstract: The presence of Diaphorina citri Kuwayama (Hemiptera: Psyllidae) and Tamarixia radiata (Waterston) (Hymenoptera: Eulophidae) was recorded in citrus crops of Cundinamarca, Colombia. This work is to know the geographic distribution of D. citri and an initial record of the parasitoid T. radiata in citrus producing areas of this department.
First report of Elasmus polistis Burks (Hymenoptera: Eulophidae) recovered from Polistes versicolor (Olivier) (Hymenoptera: Vespidae) nests in Brazil
Dorfey, C;K?hler, A;
Neotropical Entomology , 2011, DOI: 10.1590/S1519-566X2011000400019
Abstract: the first record of elasmus polistis burks in polistes versicolor (olivier) nests in the rio grande do sul state and in brazil is provided. a total of 173 specimens of p. versicolor and 790 specimens of e.polistis were collected from two nests from gramado and santa cruz do sul, rs, brazil.
Primer Registro de Tamarixia radiata (Waterston, 1922) (Hymenoptera: Eulophidae) en Colombia
Ebratt Ravelo,Everth Emilio; Rubio González,Leidy Tatiana; Costa,Valmir Antonio; Zambrano Gómez,Edna Milena; Castro ávila,ángela Patricia; Santamaría Galindo,Maikol Yohany;
Revista Facultad Nacional de Agronomía, Medellín , 2011,
Abstract: tamarixia radiata is an ectoparasitoid idiobionte of diaphorina citri kuwayama (hemiptera: psyllidae); the species was described from material collected in india. it has been introduced in many regions intentionally or accidentally, to biological control of d. citri, including some asian countries. it is know about its presence in southern africa and the americas. in south america, it is present in brazil, argentina and now in colombia.
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