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      Black twig borer, Xylosandrus compactus (Eichhoff), a potential threat to coffee production Translated title: El barrenador de ramas, Xylosandrus compactus (Eichhoff), una amenaza potencial para la producción de café

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          Abstract

          ABSTRACT In robusta coffee, Coffea canephora, the black twig borer Xylosandrus compactus (Eichhoff) (Coleoptera: Curculionidae) causes considerable damage. Although this has been reported in many crops for years in Brazil, recently, the injury caused by X. compactus in coffee has been ignored. This present study aimed to report the current status of X. compactus in Brazil, and to investigate its attack frequency in different robusta coffee genotypes. In this study, we reported the occurrence of X. compactus in robusta coffee plants in the state of Rondônia for the first time. We also evaluated the occurrence of this pest in different robusta coffee genotypes in the state of Espírito Santo. In all plants, the plagiotropic branches were attacked; however, the genotypes G2, G6, G8, G20, G48, G50, G51 and G52 showed a high number of attacked plagiotropic branches, whereas the genotypes G24 and G41 showed a low attack frequency. Thus, these can be promising candidates for pest resistance studies. Moreover, it was reported that Almeidea rubra, Alseis floribunda, Plinia grandifolia and Casearia Sylvestris can serve as hosts of X. compactus. Thus, our findings suggest that X. compactus is a threat to coffee production, and that future studies are necessary to find appropriate tools for its management.

          Translated abstract

          RESUMEN En el café robusta, Coffea canephora, el barrenador de las ramas Xylosandrus compactus (Eichhoff ) (Coleoptera: Curculionidae) causa daños considerables. Aunque esto se ha reportado en muchos cultivos durante años en Brasil, recientemente, la lesión causada por X. compactus en el café ha sido ignorada. El presente estudio tuvo como objetivo reportar el estado actual de X. compactus en Brasil e investigar su frecuencia de ataque en diferentes genotipos de café robusta. En este estudio, reportamos la aparición de X. compactusen plantas de café robusta en el estado de Rondônia por primera vez. También evaluamos la ocurrencia de esta plaga en diferentes genotipos de café robusta en el estado de Espírito Santo. En todas las plantas, las ramas plagiotrópicas fueron atacadas; sin embargo, los genotipos G2, G6, G8, G20, G48, G50, G51 y G52 mostraron un alto número de ramas plagiotrópicas atacadas, mientras que los genotipos G24 y G41 mostraron una baja frecuencia de ataque. Por lo tanto, estos pueden ser candidatos prometedores para estudios de resistencia a plagas. Además, se reportó que Almeidea rubra, Alseis floribunda, Plinia grandifolia y Casearia sylvestrispueden servir como huéspedes de X. compactus. Por lo tanto, nuestros hallazgos sugieren que X. compactus es una amenaza para la producción de café, y que son necesarios estudios futuros para encontrar herramientas apropiadas para su manejo.

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          Most cited references25

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          Review of American Xyleborina (Coleoptera: Curculionidae: Scolytinae) Occurring North of Mexico, with an Illustrated Key

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            Biology of an Introduced Ambrosia Beetle, Xylosandrus compactus,1 in Florida2

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              Sublethal Exposure to Clove and Cinnamon Essential Oils Induces Hormetic-Like Responses and Disturbs Behavioral and Respiratory Responses in Sitophilus zeamais (Coleoptera: Curculionidae).

              Essential oils have been suggested as suitable alternatives for controlling insect pests. However, the potential adaptive responses elicited in insects for mitigating the actions of these compounds have not received adequate attention. Furthermore, as is widely reported with traditional insecticides, sublethal exposure to essential oils might induce stimulatory responses or contribute to the development of resistance strategies that can compromise the management of insect pests. The current study evaluated the locomotory and respiratory responses as well as the number of larvae per grain produced by the maize weevil, Sitophilus zeamais Motschulsky, after being sublethally exposed to the essential oils of clove, Syzygium aromaticum L., and cinnamon, Cinnamomum zeylanicum L. The essential oils showed similar insecticidal toxicity (exposure route: contact with dried residues; Clove LC95 = 3.96 [2.78-6.75] µl/cm(2); Cinnamon LC95 = 3.47 [2.75-4.73] µl/cm(2)). A stimulatory effect on the median survival time (TL50) was observed when insects were exposed to low concentrations of each oil. Moreover, a higher number of larvae per grain was produced under sublethal exposure to clove essential oil. S. zeamais avoided the treated areas (in free-choice experiments) and altered their mobility when sublethally exposed to both essential oils. The respiratory rates of S. zeamais (i.e., CO2 production) were significantly reduced under low concentrations of the essential oils. We recommend the consideration of the potential sublethal effects elicited by botanical pesticides during the development of integrated pest management programs aiming to control S. zeamais.
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                Author and article information

                Journal
                rcia
                Revista de Ciencias Agrícolas
                Rev. Cienc. Agr.
                Universidad de Nariño (San Juan de Pasto, Nariño, Colombia )
                0120-0135
                2256-2273
                December 2019
                : 36
                : spe
                : 9-20
                Affiliations
                [2] Minas Gerais orgnameUniversidade Federal de Viçosa Brazil wilson.valbon@ 123456ufv.br
                [6] Rondônia orgname. Autarquica de Assistência Técnica e Extensão Rural do Estado de Rondônia Brasil fogacaisac@ 123456gmail.com
                [5] orgnameUniversidade Estadual do Sudoeste da Bahia Brazil lucasagrouesb@ 123456gmail.com
                [7] Rondônia orgnameUniversidade Federal de Rondônia Brazil vando.rondelli@ 123456unir.br
                [3] Minas Gerais orgnameUniversidade Federal de Viçosa Brazil higor.souza@ 123456ufv.br
                [8] Espírito Sato orgnameInstituto Capixaba de Pesquisa, Assistência Técnica e Extensão Rural Brasil verdin.abcfilho@ 123456gmail.com
                [4] Espírito Santo orgnameUniversidade Federal do Espírito Santo Brazil luina.noia@ 123456ufes.br
                [1] São Paulo São Paulo orgnameUniversidade de São Paulo Brazil amandatuler@ 123456usp.br
                Article
                S0120-01352019000300009 S0120-0135(19)03600000009
                10.22267/rcia.1936e.102
                1332da12-a2ea-4dbe-a85b-d057dfddc3b8

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                : 17 September 2019
                : 15 June 2019
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 37, Pages: 12
                Product

                SciELO Colombia

                Categories
                Research article

                Scolytinae.,ambrosia beetle,Curculionidae,Café Robusta,Plantas hospederas,host plants,pest insect,Insecto plaga,Robusta coffee,Scolytinae,Escarabajo ambrosia

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