scholarly journals Spatial and temporal dispersal patterns of Diachasmimorpha longicaudata (Hymenoptera: Braconidae) reared on Ceratitis capitata and Anastrepha fraterculus (Diptera: Tephritidae)

2018 ◽  
Vol 122 ◽  
pp. 84-92
Author(s):  
Maria Gisely Camargos ◽  
Clarice Diniz Alvarenga ◽  
Ronaldo Reis Júnior ◽  
Julio Marcos Melges Walder ◽  
Jefferson Castro Novais
Keyword(s):  
Ceratitis Capitata ◽  
Dispersal Patterns ◽  
Anastrepha Fraterculus ◽  
Diachasmimorpha Longicaudata ◽  
Temporal Dispersal

scholarly journals Parasitism of Diachasmimorpha longicaudata (Ashmead) on two fruit fly species

2018 ◽  
Vol 85 (0) ◽  
Author(s):  
Laís Pacheco Sá ◽  
Clarice Diniz Alvarenga ◽  
Zenobia Cardoso dos Santos ◽  
Maria das Dores da Cruz Souza ◽  
Carlos Gustavo da Cruz ◽  
...  
Keyword(s):  
Host Species ◽  
Free Choice ◽  
Ceratitis Capitata ◽  
Fruit Fly ◽  
Chi Square ◽  
Anastrepha Fraterculus ◽  
Diachasmimorpha Longicaudata ◽  
Choice Tests ◽  
The One ◽  
Chi Square Tests

ABSTRACT: The aim of the present study was to investigate the parasitism of two fruit fly species by different Diachasmimorpha longicaudata strains. Females of two parasitoid strains were reared on Ceratitis capitata or Anastrepha fraterculus that were conditioned in adapted containers. Individual parasitoids were offered 20 larvae for 1 h, using no-choice (20 C. capitata or 20 A. fraterculus) or free-choice (10 of each species) assays. Parasitism was verified by counting scars, and the pupae were classified as non-parasitized (no scars), parasitized (one scar), or superparasitized (multiple scars). Parasitism intensity was compared by evaluating the proportions of non-parasitized, parasitized, and superparasitized larvae. Parasitism intensity and scar frequency were analyzed as functions of host species and parasitoid strain, using chi-square tests. In the non-choice tests, females of both parasitoid strains parasitized the larvae, regardless of host species. However, when the parasitoids had a choice, they preferred to superparasitize A. fraterculus larvae, which are larger than C. capitata larvae. In addition, the female parasitoids parasitized most of the host larvae, regardless of parasitoid strain or host species. However, the frequency of non-parasitized pupae was higher when the offered host species was different from the one in which the parasitoid was reared, and the frequency of superparasitized pupae was higher when the offered host species was the same as the one in which the parasitoid was reared.

scholarly journals Does Diachasmimorpha longicaudata (Hymenoptera: Braconidae) have a preferential instar to parasitize Tephritidae (Diptera)?

2019 ◽  
Vol 109 ◽  
Author(s):  
Roberta A. Rohr ◽  
Simone M. Jahnke ◽  
Luiza R. Redaelli
Keyword(s):  
Sex Ratio ◽  
Ceratitis Capitata ◽  
Mean Value ◽  
Larval Stages ◽  
The Third ◽  
Native Parasitoids ◽  
Anastrepha Fraterculus ◽  
Diachasmimorpha Longicaudata ◽  
The Mean ◽  
Third Instar Larvae

ABSTRACT Diachasmimorpha longicaudata (Ashmead, 1905) is a koinobiont parasitoid of Tephritidae larvae, the third instar larvae of which is considered preferential, but it is able to parasitize other larval stages and compete with native parasitoids. This study investigated the preference and parasitism capacity of D. longicaudata in larvae of different instar of Anastrepha fraterculus (Wiedemann, 1830) (AF) and Ceratitis capitata (Wiedemann, 1824) (CC). The experiments were carried out under laboratory conditions, one instar being offered at a time in parasitism units, with the following choices among the hosts: 25 AF larvae and 25 CC larvae (first, second and third instar were evaluated). The other test was a multiple-choice in relation to the instar, for larvae of the same host species, with three parasitism units being offered, with 15 larvae of each instar. The mean number of formed pupae, emerged parasitoids, parasitized pupae, unviable pupae and sex ratio were evaluated. In the first bioassay, the mean number of emerged parasitoids and parasitized pupae in the AF host were significantly higher in treatments with first and second instar larvae. For CC there was no difference between the instars tested. In the second bioassay, the mean value of emerged parasitoids and parasitized pupae, was higher in second and third instar larvae for CC, and for AF was in second instar larvae. The sex ratio was biased for males in all treatments in both bioassays. The results show that D. longicaudata can parasitize and be successful in all available larval instars, being able to compete with parasitoids of any instar.

Can Anastrepha fraterculus larval feeding influence chemotaxis and parasitism of Diachasmimorpha longicaudata and Aganaspis pelleranoi?

2021 ◽  
pp. 1-8
Author(s):  
Patricia Daniela da Silva Pires ◽  
Josué Sant’ Ana ◽  
Luiza Rodrigues Redaelli
Keyword(s):  
Biological Control ◽  
Artificial Diet ◽  
Psidium Guajava ◽  
Fruit Production ◽  
Larval Feeding ◽  
Parasitoid Species ◽  
Major Barrier ◽  
Anastrepha Fraterculus ◽  
Diachasmimorpha Longicaudata ◽  
Control Programmes

Abstract Anastrepha fraterculus (Diptera: Tephritidae) is a major barrier to fruit production and exportation. In Brazil, the native parasitoid Aganaspis pelleranoi (Hymenoptera: Figitidae) and the exotic parasitoid Diachasmimorpha longicaudata (Hymenoptera, Braconidae) stand out as biological control agents. Knowledge of the factors that affect interactions among parasitoids, A. fraterculus, and host fruits may enhance the use of these agents in biological control programmes. This study evaluated the chemotaxis and parasitism of A. pelleranoi and D. longicaudata females reared on A. fraterculus larvae and kept on an artificial diet, red guava (Psidium guajava) or apple (Malus domestica). Females of both parasitoid species that emerged from larvae raised on artificial diet, guava or apple, were tested to Y olfactometer choice tests. In the parasitism tests, both parasitoid species were made to choose between A. fraterculus larvae brushed with water, apple pulp or guava pulp. D. longicaudata females from artificial diet (control) did not distinguish between fruit odours; however, females of D. longicaudata from larvae kept in apple or guava directed to the odours of their original fruit. The greatest parasitism for D. longicaudata occurred in the units that contained the pulp in which the larvae grew. A. pelleranoi from artificial diet preferred guava odours, including the females kept in apple. Similar results were observed in the parasitism bioassays. Our results found that A. fraterculus larval feeding influenced search behaviour and parasitism of D. longicaudata, whereas A. pelleranoi rearing experience did not affect its host choices.

scholarly journals Índice de infestação e diversidade de moscas-das-frutas em hospedeiros exóticos e nativos no pólo de fruticultura de Anagé, BA

Bragantia ◽  
2008 ◽  
Vol 67 (2) ◽  
pp. 401-411 ◽  
Author(s):  
Ricardo Falcão de Sá ◽  
Maria Aparecida Castellani ◽  
Antonio Souza do Nascimento ◽  
Maria Heloisa da Silva Teixeira Brandão ◽  
Aline Novais da Silva ◽  
...  
Keyword(s):  
Ceratitis Capitata ◽  
Anastrepha Fraterculus ◽  
Spondias Tuberosa ◽  
Spondias Purpurea

As moscas-das-frutas (Diptera: Tephritidae) são os principais entraves às exportações de manga nos pólos de fruticultura da Região Sudoeste da Bahia. O presente trabalho teve como objetivo estudar índices de infestação e a diversidade de moscas-das-frutas no pólo de fruticultura de Anagé, BA, visando obter subsídios para o manejo integrado dessas pragas na mangueira, na região. Os estudos foram realizados em 2004 e 2005, nos municípios de Anagé, Belo Campo e Caraíbas, BA, procedendo-se à coleta de frutos de 21 espécies vegetais, nativas e exóticas, e identificação das espécies de moscas associadas. Estimaram-se os índices de infestação em pupários/kg de fruto e pupários/fruto. Os maiores índices de infestação, em pupários/kg de fruto, ocorreram em serigüela (Spondias purpurea L.) com 61,3, juá (Ziziphus joazeiro L.), 38,3 e umbu (Spondias tuberosa L.), 33,1, considerados hospedeiros primários de Anastrepha fraterculus (Wiedemann) e A. obliqua (Macquart). As maiores infestações em pupários/fruto ocorreram em serigüela (0,9); umbu (0,7) e cajarana (Spondias sp.) (0,2). Com base no monitoramento larval, registra-se, para as condições do pólo de fruticultura de Anagé, a ocorrência das espécies Anastrepha fraterculus, A. obliqua, A. dissimilis, A. amita, A. distincta, A. sororcula, A. zenildae e Ceratitis capitata. Registram-se, pela primeira vez, as seguintes associações bitróficas: juá com A. fraterculus, A. obliqua, A. dissimilis e A. distincta; e umbu com A. amita e A. sororcula.

scholarly journals MOSCAS-DAS-FRUTAS (DIPTERA: TEPHRITIDAE) E SEUS PARASITÓIDES EM PLANTAS HOSPEDEIRAS DE TRÊS MUNICÍPIOS DO NORTE DO ESTADO DE MINAS GERAIS

2009 ◽  
Vol 76 (2) ◽  
pp. 195-204
Author(s):  
C.D. Alvarenga ◽  
C.A.R. Matrangolo ◽  
G.N. Lopes ◽  
M.A. Silva ◽  
E.N. Lopes ◽  
...  
Keyword(s):  
Ceratitis Capitata ◽  
Psidium Guajava ◽  
Minas Gerais ◽  
Diachasmimorpha Longicaudata ◽  
Spondias Tuberosa

RESUMO O levantamento das moscas-das-frutas foi por meio de coleta de frutos em áreas rurais e urbanas de Jaíba, Janaúba e Nova Porteirinha, durante 50 meses (maio/1999 a abril/2001 e junho/2002 a julho/2004). Foram amostradas 32 espécies de frutos em 17 famílias, porém foram obtidas moscasdas-frutas em apenas 18 hospedeiros. Foram coletados exemplares de Ceratitis capitata (Wied.) e de oito espécies de Anastrepha: A. fraterculus (Wied.), A. obliqua (Macquart), A. sororcula Zucchi, A. turpiniae Stone, A. zenildae Zucchi, A. pickeli Lima, A. montei Lima e Anastrepha n.sp.3. C. capitata ocorreu principalmente em hospedeiros introduzidos e foi predominante em áreas urbanas. As espécies de Anastrepha predominaram em áreas rurais. Umbu (Spondias tuberosa Arr. Câm.) e goiaba (Psidium guajava L.) foram os hospedeiros mais infestados pelos tefritídeos. Sete espécies de parasitóides foram coletadas: Doryctobracon areolatus (Szépligeti)(mais numeroso), D. fluminensis (Lima), D. brasiliensis (Szépligeti), Opius bellus Gahan., Utetes anastrephae (Viereck), Diachasmimorpha longicaudata (Ashmead) e Aganaspis pelleranoi (Brèthes).

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