Host instar suitability and life-history parameters under different temperature regimes of<i>Necremnus artynes</i>on<i>Tuta absoluta</i>

Calvo, Francisco; Soriano, J.D.; Bolckmans, K.; Belda, José E.

doi:10.1080/09583157.2013.795930

Cited by 27 publications

(43 citation statements)

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“…Different indigenous natural enemies to Europe have been found attacking T. absoluta in Europe, which include the eulophid Necremnus artynes (Walker) (Hymenoptera: Eulophidae), (Ferracini et al , 2012; Urbaneja et al , 2012; Calvo et al , 2013; Zappalá et al , 2013; Abbes et al , 2014; Chailleux et al , 2014 a ; Gebiola et al ., 2015). Nevertheless, early reports of N. artynes parasitizing T. absoluta are now thought, as it is the case of Calvo et al (2013), to refer Necremnus tutae Ribes & Bernardo (Hymenoptera: Eulophidae), which has been found to be the most abundant and widespread species within the N. artynes group in Europe (Gebiola et al ., 2015). N. tutae is an ectoparasitoid, which parasitizes second to fourth instars of T. absoluta larvae and inflicts extra mortality by host-killing, i.e.…”

Section: Introductionmentioning

confidence: 99%

“…N. tutae is an ectoparasitoid, which parasitizes second to fourth instars of T. absoluta larvae and inflicts extra mortality by host-killing, i.e. host-feeding and host-stinging (Calvo et al , 2013). Additionally, it exhibits a higher intrinsic rate of increase than T. absoluta when reared on tomato (Calvo et al , 2013), altogether indicating potential to control this pest.…”

Section: Introductionmentioning

confidence: 99%

“…host-feeding and host-stinging (Calvo et al , 2013). Additionally, it exhibits a higher intrinsic rate of increase than T. absoluta when reared on tomato (Calvo et al , 2013), altogether indicating potential to control this pest. Integrating the use of such agent alone or combined with other control agents into the present biological control-based integrated pest management programmes (IPM) could provide growers with more options to control T. absoluta .…”

Section: Introductionmentioning

confidence: 99%

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Can the parasitoid Necremnus tutae (Hymenoptera: Eulophidae) improve existing biological control of the tomato leafminer Tuta aboluta (Lepidoptera: Gelechiidae)?

Calvo¹,

Soriano²,

Stansly³

et al. 2016

Bull. Entomol. Res.

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Necremnus tutae is native to the Mediterranean region where it has been observed in greenhouses parasitizing the invasive Tuta absoluta on tomato. The objective of the present study was to determine whether augmentative releases of N. tutae can improve existing biological control of T. absoluta based on predation by Nesidicoris tenuis. Two experiments were carried out, of which the first evaluated different N. tutae release rates (1 and 2 N. tutae m-2 week-1). The parasitoid reduced plant and fruit damage, especially at the higher rate. However, such reduction was considered insufficient given the large numbers of parasitoids needed and still unacceptable level of fruit damage. The second experiment focused on combining the most efficient rate of N. tutae of those evaluated during the first experiment, with the pre- and post-planting release of N. tenuis and supplemental additions of Ephestia kuehniella eggs. Addition of N. tutae decreased leaf damage by T. absoluta regardless the release method for N. tenuis, but the pre-plant release of N. tenuis alone was sufficient to prevent fruit damage by T. absoluta. This suggested that the addition of N. tutae may not be necessary to obtain satisfactory control of T. absoluta following pre-plant application of N. tenuis, although different options for using N. tutae in commercial crops may still be possible.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Can the parasitoid Necremnus tutae (Hymenoptera: Eulophidae) improve existing biological control of the tomato leafminer Tuta aboluta (Lepidoptera: Gelechiidae)?

Calvo¹,

Soriano²,

Stansly³

et al. 2016

Bull. Entomol. Res.

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“…According to the most abundant and effective biological control agents of T. absoluta are Necremnus artynes (Walker) (Hymenoptera: Eulophidae) and N. tidius (Walker) (Hymenoptera: Eulophidae). These parasitoids showed good adaptation to the invasive as they reduced the pest larval mortality with a greater percentage (Luna et al, 2012;Calvo et al, 2013). Research has shown that the solitary larval parasitoid Agathis fuscipennis (Zetterstedt) (Hymenoptera: Braconidae) can parasitize T. absoluta by up to 20% of the larval population while Pseudoapanteles dingus (Hymenoptera: Braconidae), a solitary larval parasitoid can achieve up to 30% (Urbaneja et al, 2012).…”

Section: 6mentioning

confidence: 99%

Prevalence of Tuta absoluta (Meyrick) and Chemical Management in Loitoktok, Kajiado County, Kenya

2019

JBAH

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The tomato borer, Tuta absoluta, (Meyrick) has invaded the Mediterranean basin recently from South America and it is becoming a major global pest of tomato. Tomato plants can be infested from seedlings to mature plants. In Loitokitok, the pest has devastated tomato grain in the district with yield loss being reported of up to 100%. This has resulted in loss of income for the tomato growers. Chemical control of the pest has been difficult because the pests live inside the leaves, fruits and stems. Excessive use of pesticide is dangerous can develop resistance due to its high reproduction capacity and short generation. This field study was conducted within Loitokitok in Kajiado County to find out the management practices that tomato farmers are currently using to control Tuta absoluta. The aim was to develop the efficacy of a range of insecticides applied against Tuta absoluta and to assess damage levels caused on tomato. A baseline survey was conducted by use questionnaires to collect data from farmers on the damage level, management measures and their efficacy. The results showed that in Loitokitok, tomato growing can be done up to 3 times/year due to good climatic conditions, which provide the pest with abundant all year round and favours its spread. The insecticides that are commonly used are Coragen* (chlorantraniliprole) Belt* (Flubendiamide), Profecron* (profenofos), Radiant* (spinetorum), Escort* (Emamectin Benzoate), and Pentagon*(Lambda-cyhalothrin). Most farmers were using Coragen due to its specific mode of action on several pests on Lepidoptera group. It has good efficacy against T. absoluta larvae. About 46.37% of the respondents agreed that chlorantraniliprole insecticide used by farmers were effective on the control of pests and farmers were using different insecticides depending on their accessibility and cost. Most farmers recorded the losses of up to 100% tomato yield due to pest attack.

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“…Sin embargo, cuando se empleó N. tenuis, su eficacia fue del 28,6 al 33,3% de depredación de huevos de la plaga, en ciclo de primavera-verano (Cabello, 2009a) y menos de la mitad (13,7%) en tomate de ciclo de invierno; con valores del 19,7% en la parte alta de la planta, respecto a sólo 7,7% en la parte media. larvas de tercer estadio y alimentarse como depredador de larvas de segundo estadio (Calvo et al, 2013). González-Cabrera et al (2010) afirman que formulados comerciales basados en Bacillus thuringiensis pueden ser una buena alternativa para el control de tuta ya que se han usado para controlar otros insectos plaga con éxito.…”

Section: Ordenunclassified

Resistencia a emamectina benzoato en Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae)

Aguirre¹,

Rosario²

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Técnicas Avanzadas en Investigación y Desarrollo Agrario y Alimentario (TAIDA) INFORMA:Que la Tesis Doctoral titulada, "Resistencia a emamectina benzoato en Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae)", ha sido realizada, dentro del mencionado Programa de Doctorado, por D.ª Mª del Rosario Martínez Aguirre bajo la dirección y supervisión del Dr. Pablo Bielza Lino.En reunión de la Comisión Académica de fecha 13/03/2017, visto que en la misma se acreditan los indicios de calidad correspondientes y la autorización del Director de la misma, se acordó dar la conformidad, con la finalidad de que sea autorizado su depósito por el Comité de Dirección de la Escuela Internacional de Doctorado.La Rama de conocimiento por la que esta tesis ha sido desarrollada es:  Ciencias  Ciencias Sociales y Jurídicas X Ingeniería y Arquitectura En Cartagena, a 15 de marzo de 2017 EL PRESIDENTE DE LA COMISIÓN ACADÉMICA Fdo: Francisco Artés Hernández COMITÉ DE DIRECCIÓN ESCUELA INTERNACIONAL DE DOCTORADO AGRADECIMIENTOS En el momento en el que decidí realizar la tesis doctoral desconocía por completo todo lo que implicaba. Ha sido una ardua y agridulce tarea prolongada en el tiempo. En todo este trayecto me han acompañado muchas personas y es por ello que merecen mi reconocimiento y les doy las gracias.En mi primer lugar agradecer a mi director de tesis D. Pablo Bielza, por darme la oportunidad de hacer el doctorado en su grupo de investigación. Por transmitirme su conocimiento y pasión por la ciencia. Así como guiarme, aconsejarme y siempre tener una palabra de ánimo.A los compañeros de laboratorio Carolina, Ana, Inma, Amador, Enrique, Virginia y Eli por animarme y ofrecer su ayuda cuando comencé a trabajar y continuar con el doctorado. A Lidia García, compañera de laboratorio con la que he trabajado codo con codo seis años y medio, por ser tan disciplinada y responsable.Agradecer a toda mi familia en general ya que han estado atentos al desarrollo de la tesis hasta el último momento, deseando que algún día tuviera su fin.A mis padres y hermano porque me han ayudado tanto psicológicamente como a pie de campo, haciendo bioensayos de selección conmigo hasta bien entrada la noche y cultivando plantas de tomate.A Joaquín por acompañarme los fines de semana al laboratorio y ayudarme. Así como soportar mi carácter en esos momentos y aún así animarme.Y por último, agradecer el ánimo por parte de los compañeros de trabajo, amigos, profesores… cada palabra ha sido importante para mí. Gracias a todos.Por último, se quiso conocer la heredabilidad de la resistencia de emamectina en tuta. Se realizaron cruces recíprocos entre la población resistente a emamectina (E.b. S20) y una sensible (Mixta), y las descendencias fueron bioensayadas. Los resultados de los ensayos muestran que la resistencia a emamectina en tuta es heredada autosómicamente, no va ligada al sexo y es recesiva. ABSTRACT Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae), commonly known as the tomato leaf miner, arrived in Spain in 2006. This pest has become the main problem of...

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Host instar suitability and life-history parameters under different temperature regimes ofNecremnus artynesonTuta absoluta

Cited by 27 publications

References 24 publications

Can the parasitoid Necremnus tutae (Hymenoptera: Eulophidae) improve existing biological control of the tomato leafminer Tuta aboluta (Lepidoptera: Gelechiidae)?

Can the parasitoid Necremnus tutae (Hymenoptera: Eulophidae) improve existing biological control of the tomato leafminer Tuta aboluta (Lepidoptera: Gelechiidae)?

Prevalence of Tuta absoluta (Meyrick) and Chemical Management in Loitoktok, Kajiado County, Kenya

Resistencia a emamectina benzoato en Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae)

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