The use of aggregation pheromone to enhance dissemination of<i>Beauveria bassiana</i>for the control of the banana weevil in Uganda

Tinzaara, William; Gold, Clifford S.; Dicke, Marcel; Huis, A. van; Nankinga, C.; Kagezi, Godfrey H.; Ragama, P.E.

doi:10.1080/09583150600937089

Cited by 40 publications

(30 citation statements)

References 18 publications

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“…One option as an alternative to conventional spraying of synthetic acaricides is the development of an attract-and-kill strategy. This has shown promising results with other agricultural pests, such as codling moths, fruit flies and banana weevils (Charmillot et al 2000;Stetter and Lieb 2000;Vargas et al 2003;Tinzaara et al 2007). A major advantage of this strategy is that smaller amounts of the killing agent are needed and that this agent can be administered at specific locations.…”

Section: Discussionmentioning

confidence: 99%

“…It will also slow down the development of resistance to chemical components. Ideally, biological kill components that are more environmentally friendly, such as essential plant oils and entomopathogenic fungi (Kim et al 2004;Tinzaara et al 2007;Tavassoli et al 2008) are incorporated in this strategy. The concealed lifestyle of the mite during the day makes it hard for a pesticide to actually hit the mite.…”

Section: Discussionmentioning

confidence: 99%

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The role of volatiles in aggregation and host-seeking of the haematophagous poultry red mite Dermanyssus gallinae (Acari: Dermanyssidae)

Koenraadt

Dicke

2009

Exp Appl Acarol

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Infestations with ectoparasitic poultry red mites (Dermanyssus gallinae) pose an increasing threat to poultry health and welfare. Because of resistance to acaricides and higher scrutiny of poultry products, alternative and environmentally safe management strategies are warranted. Therefore, we investigated how volatile cues shape the behavior of D. gallinae and how this knowledge may be exploited in the development of an attractand-kill method to control mite populations. A Y-tube olfactometer bio-assay was used to evaluate choices of mites in response to cues related to conspecific mites as well as related to their chicken host. Both recently fed and starved mites showed a strong preference (84 and 85%, respectively) for volatiles from conspecific, fed mites as compared to a control stream of clean air. Mites were also significantly attracted to 'aged feathers' (that had remained in the litter for 3-4 days), but not to 'fresh feathers'. Interestingly, an air stream containing 2.5% CO 2 , which mimics the natural concentration in air exhaled by chickens, did attract fed mites, but inhibited the attraction of unfed mites towards volatiles from aged feathers. We conclude that both mite-related cues (aggregation pheromones) and host-related cues (kairomones) mediate the behavior of the poultry mite. We discuss the options to exploit this knowledge as the 'attract' component of attract-and-kill strategies for the control of D. gallinae.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

The role of volatiles in aggregation and host-seeking of the haematophagous poultry red mite Dermanyssus gallinae (Acari: Dermanyssidae)

Koenraadt

Dicke

2009

Exp Appl Acarol

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“…A presença de insetos infectados com o fungo nas Tabela 1 -Número médio de insetos de Cosmopolites sordidus e Metamasius hemipterus capturados por armadilhas em áreas de produção de banana localizadas em Botucatu e Piracicaba, e incidência de insetos doentes após introdução inoculativa de Beauveria bassiana. (GODONOU et al, 2000;TINZAARA et al, 2007), apesar de essa espécie apresentar baixa mobilidade. Entretanto, neste trabalho, não foi constatada a disseminação da doença da área tratada para a testemunha em Piracicaba, onde a população de insetos estava composta exclusivamente por C. sordidus.…”

Section: Introductionunclassified

Falsa broca aumenta disseminação de Beauveria bassiana em populações de campo da broca-do-rizoma da bananeira

Pauli¹,

Lopes

Alves

et al. 2011

Cienc. Rural

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“…(JORDÃO et al, 1999;GODONOU et al, 2000;MOORE, 2000;ALMEIDA et al, 2009). Nas lavouras comerciais, as taxas de infecção natural do inseto por B. bassiana tendem a ser muito baixas (GOLD; PEÑA; KARAMURA, 2001;PRESTES et al, 2006;TINZAARA et al, 2007a), levando à necessidade de desenvolvimento de uma estratégia inundativa ou inoculativa para que ocorra uma epizootia (ALVES; LECUONA, 1998).…”

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“…A maior porcentagem de mortalidade pelo fungo foi observada no T4 (12,5%), correspondente a liberação de adultos sadios, os quais sempre foram recapturados na mesma área de liberação, o que permite supor que a infecção foi causada pela transmissão do fungo a partir dos insetos inoculados e não pela movimentação dos insetos entre tratamentos/parcelas. Esta transmissão também pode ter acontecido pela inoculação dos conídios levados pela chuva, uma vez que os insetos inoculados apresentam mobilidade diminuída (TINZAARA et al, 2007a).…”

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Transmissão de fungo entomopatogênico no controle da broca do rizoma

2012

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ResumoO objetivo deste trabalho foi avaliar a transmissão do fungo entomopatogênico (Beauveria bassiana) entre adultos da broca do rizoma (Cosmopolites sordidus) em condições de campo. Insetos adultos e sadios de C. sordidus foram marcados e liberados na base de touceiras de bananeiras e dois dias após na mesma área foram liberados insetos marcados e inoculados com o fungo B. bassiana. Aos 7, 14, 21 e 28 dias armadilhas de pseudocaule foram utilizadas para a recaptura dos insetos e determinação da mortalidade pelo fungo. Observou-se uma porcentagem de infecção de 3,7% dos insetos sadios recuperados, caracterizando a transmissão de B. bassiana entre insetos inoculados e sadios devido ao aumento da prevalência natural preexistente que era de 0,3 % de insetos doentes. Palavras-chave: Beauveria bassiana, Cosmopolites sordidus, epizootia AbstractThe aim of this study was to assess the transmission of the entomopathogenic fungus Beauveria bassiana among adults of banana weevil (Cosmopolites sordidus) in the field. C. sordidus healthy adults were marked and released on the basis of banana plants. Two days later insects marked and inoculated with the entomopathogenic fungus were released in the same area. Pseudostem traps were placed at 7, 14, 21 and 28 days for recover of released insects and to evaluate the mortality. It was observed that 3.7% of the non inoculated insects died due to pathogen infection caracterizing B. bassiana transmission between inoculated and healthy insects due to an increase in natural pre-existing prevalescence that was 0.3% of infected insects.

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The use of aggregation pheromone to enhance dissemination ofBeauveria bassianafor the control of the banana weevil in Uganda

Cited by 40 publications

References 18 publications

The role of volatiles in aggregation and host-seeking of the haematophagous poultry red mite Dermanyssus gallinae (Acari: Dermanyssidae)

The role of volatiles in aggregation and host-seeking of the haematophagous poultry red mite Dermanyssus gallinae (Acari: Dermanyssidae)

Falsa broca aumenta disseminação de Beauveria bassiana em populações de campo da broca-do-rizoma da bananeira

Transmissão de fungo entomopatogênico no controle da broca do rizoma

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