moscas frugívoras e seus parasitoides nos municípios de pelotas e capão do leão, rio grande do sul, brasil frugivorous flies and their parasitoids in the cities of pelotas and capão do leão, rio grande do sul, brazil
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ID: 147344
2012
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Abstract
As moscas frugívoras (Tephritoidea) são as principais pragas da fruticultura de clima temperado no Brasil. O objetivo do presente trabalho foi avaliar a infestação desses dípteros e a ocorrência de seus parasitoides em frutíferas nos municípios de Pelotas e Capão do Leão, localizados na região Sul, nas safras agrícolas de 2007/08 e 2008/09. Foram coletados frutos de araçazeiro-amarelo e vermelho (Psidium cattleianum Sabine, 1821), butiazeiro [Butia capitata (Mart.) Becc., 1916], caquizeiro (Diospyros kaki Linnaeus, 1753), cerejeira-do-mato (Eugenia involucrata DC., 1828), goiabeira [Psidium guajava (Linnaeus, 1753)], goiabeira-serrana [Acca sellowiana (Berg.) Burret, 1941], nespereira [Eriobotrya japonica (Thunb.) Lindley, 1822], pessegueiro [Prunus persicae (L.) Batsch, 1801], pitangueira (Eugenia uniflora Linnaeus,1753) e uvalheira (Eugenia pyriformis Cambessèdes, 1832). Os frutos foram coletados e transportados para o laboratório, onde foram individualizados e determinados os seguintes parâmetros: índice de infestação das moscas, índice de parasitismo e frequência de indivíduos por espécie de parasitoide. Foram constatadas duas espécies de Tephritidae, Anastrepha fraterculus (Wiedemann, 1830) (90,5%) e Ceratitis capitata (Wiedemann, 1824) (9,5%) e duas de Lonchaeidae, Neosilba zadolicha McAlpine & Steyskal, 1982 (87,8%) e uma espécie ainda não descrita, referida como Neosilba n. sp. 3 (12,2%). Anastrepha fraterculus é a espécie mais abundante nos dois municípios, sendo constatada na maioria das frutíferas coletadas. Caquizeiro e goiabeira foram os hospedeiros que apresentaram o maior índice de infestação por C. capitata. Quanto às espécies de Neosilba, a maior infestação ocorreu em frutos de goiabeira-serrana. Dos parasitoides emergidos, foram identificadas três espécies, sendo duas de Braconidae, Doryctobracon areolatus (Szépligeti, 1911) (52,6%) e Opius bellus (Gahan, 1930) (27,5%) e uma espécie de Figitidae, Aganaspis pelleranoi (Brèthes, 1924) (20,0%). Doryctobracon areolatus foi o parasitoide mais frequente na maioria das frutíferas amostradas, com exceção da pitangueira e cerejeira-do-mato em que predominou O. bellus, e em pessegueiro com predomínio de A. pelleranoi.
Frugivorous flies (Tephritoidea) are the main pests in temperate-zone fruit crop in Brazil. The objective of this research is to evaluate the infestation of these flies and the incidence of their parasitoids in fruit trees from 2007/08 and 2008/9 crops in Pelotas and in Capão do Leão, located in the south of Rio Grande do Sul. Fruits were collected from yellow guava and red guava (Psidium cattleianum Sabine, 1821), pindo palm [Butia capitata (Mart.) Becc., 1916], persimmon (Diospyros kaki Linnaeus, 1753), wild cherry (Eugenia involucrata DC., 1828), guava [Psidium guajava (Linnaeus, 1753)], feijoa tree [Acca sellowiana (Berg.) Burret, 1941], medlar [Eriobotrya japonica (Thunb.) Lindley, 1822], peach [Prunus persicae (L.) Batsch, 1801], surinam cherry (Eugenia uniflora Linnaeus,1753) and (Eugenia pyriformis Cambessèdes, 1832). The fruit was collected and transported to the laboratory, where the following parameters were individually determined: fly infestation rate, parasitism rate, and its frequency per parasitoid specie. It was found two species of Tephritidae, Anastrepha fraterculus (Wiedemann, 1830) (90.5%) and Ceratitis capitata (Wiedemann, 1824) (9.5%) and two of Lonchaeidae, Neosilba zadolicha McAlpine & Steyskal, 1982 (87.8%) and a species not yet described, called Neosilba n. sp. 3 (12.2%). Anastrepha fraterculus is the most abundant species in the two cities and it was detected in most fruit crops collected. The persimmon and the guava were the hosts that showed the highest index of C. capitata infestation. Regarding to the species of Neosilba, the highest infestation occurred in fruits of feijoa tree. From the emerged parasitoids, it was identified three species two of Braconidae, Doryctobracon areolatus (Szépligeti, 1911) (52.6%) and Opius bellus (Gahan, 1930) (27.5%) and a species of Figitidae, Aganaspis pelleranoi (Brèthes, 1924) (20.0%). Doryctobracon areolatus was the most frequent parasitoid in most sampled fruit trees, except for surinam cherry and wild cherry, where O. bellus was predominant and for peach, A. pelleranoi.
Frugivorous flies (Tephritoidea) are the main pests in temperate-zone fruit crop in Brazil. The objective of this research is to evaluate the infestation of these flies and the incidence of their parasitoids in fruit trees from 2007/08 and 2008/9 crops in Pelotas and in Capão do Leão, located in the south of Rio Grande do Sul. Fruits were collected from yellow guava and red guava (Psidium cattleianum Sabine, 1821), pindo palm [Butia capitata (Mart.) Becc., 1916], persimmon (Diospyros kaki Linnaeus, 1753), wild cherry (Eugenia involucrata DC., 1828), guava [Psidium guajava (Linnaeus, 1753)], feijoa tree [Acca sellowiana (Berg.) Burret, 1941], medlar [Eriobotrya japonica (Thunb.) Lindley, 1822], peach [Prunus persicae (L.) Batsch, 1801], surinam cherry (Eugenia uniflora Linnaeus,1753) and (Eugenia pyriformis Cambessèdes, 1832). The fruit was collected and transported to the laboratory, where the following parameters were individually determined: fly infestation rate, parasitism rate, and its frequency per parasitoid specie. It was found two species of Tephritidae, Anastrepha fraterculus (Wiedemann, 1830) (90.5%) and Ceratitis capitata (Wiedemann, 1824) (9.5%) and two of Lonchaeidae, Neosilba zadolicha McAlpine & Steyskal, 1982 (87.8%) and a species not yet described, called Neosilba n. sp. 3 (12.2%). Anastrepha fraterculus is the most abundant species in the two cities and it was detected in most fruit crops collected. The persimmon and the guava were the hosts that showed the highest index of C. capitata infestation. Regarding to the species of Neosilba, the highest infestation occurred in fruits of feijoa tree. From the emerged parasitoids, it was identified three species two of Braconidae, Doryctobracon areolatus (Szépligeti, 1911) (52.6%) and Opius bellus (Gahan, 1930) (27.5%) and a species of Figitidae, Aganaspis pelleranoi (Brèthes, 1924) (20.0%). Doryctobracon areolatus was the most frequent parasitoid in most sampled fruit trees, except for surinam cherry and wild cherry, where O. bellus was predominant and for peach, A. pelleranoi.
| Reference Key |
nunes2012cinciamoscas
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|---|---|
| Authors | ;Adrise Medeiros Nunes;Fernanda Appel Müller;Rafael da Silva Gonçalves;Mauro Silveira Garcia;Valmir Antonio Costa;Dori Edson Nava |
| Journal | Trials |
| Year | 2012 |
| DOI |
10.1590/S0103-84782012000100002
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