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      Toxicity and residual effects of toxic baits with spinosyns on the South American fruit fly Translated title: Toxicidade e efeitos residuais de iscas tóxicas à base de espinosinas sobre a mosca-das-frutas sul-americana

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          Abstract

          Abstract: The objective of this work was to assess the lethal concentration and lethal time (LC and LT) of spinosad and spinetoram, combined with different food lures, and their residual effects on South American fruit fly (Anastrepha fraterculus). The toxic baits were offered in eight concentrations (2, 6, 14, 35, 84, 204, 495, and 1,200 mg L-1), combined with the following food lures: 7% sugarcane molasses, 3% Biofruit, 1.5% CeraTrap, 1.25% Flyral, 3% Samaritá Bait, and 3% Samaritá Tradicional; diluted food lures in water were used as controls. The residual effect of the formulations at 96 mg L-1 concentration were evaluated for 21 days and were compared with that of the commercial bait Success 0.02 CB. Both insecticides were toxic to adults of A. fraterculus, and mortality varied with the food lure used. The LC50and LT50ranged from 15.19 to 318.86 mg L-1and from 11.43 to 85.93 hours, respectively. Spinosad was 2 to 36 times as toxic as spinetoram when combined with different hydrolyzed proteins. Toxic baits formulated with spinosad and spinetoram (96 mg L-1) caused mortality equivalent to the one by Success 0.02 CB (90.2%), when assessed on the day of application. Toxic baits formulated with 3% Biofruit + spinosad and 3% Samaritá Bait + spinetoram are effective for managingA. fraterculusand provide up to seven days of residual effect in the absence of rain; however, only Success 0.02 CB caused more than 80% mortality for up to 21 days.

          Translated abstract

          Resumo: O objetivo deste trabalho foi determinar a concentração e o tempo letal (CL e TL) de espinosade e espinetoram, associados a diferentes atrativos alimentares, e seus efeitos residuais sobre a mosca-das-frutas sul-americana (Anastrepha fraterculus). As iscas tóxicas foram ofertadas em oito concentrações (2, 6, 14, 35, 84, 204, 495 e 1.200 mg L-1), associadas aos atrativos alimentares: 7% de melaço de cana-de-açúcar, 3% de Biofruit, 1,5% de CeraTrap, 1,25% de Flyral, 3% de isca Samaritá e 3% de Samaritá Tradicional; os atrativos alimentares diluídos em água foram utilizados como testemunha. O efeito residual das formulações à concentração de 96 mg L-1 foi avaliado por 21 dias e comparado ao da isca comercial Success 0.02 CB. Ambos os inseticidas foram tóxicos aos adultos de A. fraterculus, e a mortalidade variou de acordo com o atrativo empregado. A CL50 e o TL50 variaram de 15,19 a 318,86 mg L-1 e de 11,43 a 85,93 horas, respectivamente. O espinosade foi de 2 a 36 vezes mais tóxico que o espinetoram quando associado às diferentes proteínas hidrolisadas. As iscas tóxicas formuladas com espinosade e espinetoram (96 mg L-1) causaram mortalidade equivalente àquela causada por Success 0.02 CB (90,2%) quando avaliadas no dia da aplicação. As iscas tóxicas formuladas com Biofruit a 3% + espinosade e isca Samaritá a 3% + espinetoram são eficazes para o manejo de A. fraterculus e apresentam efeito residual de até sete dias, na ausência de chuva; porém, somente Success 0.02 CB causou mais de 80% de mortalidade por até 21 dias.

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          Most cited references22

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          Biology of Fruit Flies

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            Insecticide resistance in Tephritid flies

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              Bait dilution, spinosad concentration, and efficacy of GF-120 based fruit fly sprays

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                pab
                Pesquisa Agropecuária Brasileira
                Pesq. agropec. bras.
                Embrapa Secretaria de Pesquisa e Desenvolvimento; Pesquisa Agropecuária Brasileira (Brasília, DF, Brazil )
                0100-204X
                1678-3921
                February 2018
                : 53
                : 2
                : 144-151
                Affiliations
                [1] Bento Gonçalves Rio Grande do Sul orgnameEmbrapa Uva e Vinho Brazil i_schutze@ 123456hotmail.com
                [2] Pelotas Rio Grande do Sul orgnameUniversidade Federal de Pelotas Brazil alcienimar@ 123456yahoo.com.br
                Article
                S0100-204X2018000200144
                10.1590/s0100-204x2018000200002
                a7c8b12d-2fd0-47bf-ad14-69caed4bf6f3

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

                History
                : 20 June 2016
                : 05 February 2016
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 29, Pages: 8
                Product

                SciELO Brazil


                proteína hidrolisada,Anastrepha fraterculus,espinetoram,espinosade,melaço de cana-de-açúcar,fraterculus,hydrolyzed protein,spinetoram,spinosad,sugarcane molasses

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