scholarly journals Nonhost Status of Commercial Sweet Granadilla (Passiflora ligularis) in Peru to Ceratitis capitata (Diptera: Tephritidae) and Anastrepha fraterculus

2020 ◽  
Vol 113 (3) ◽  
pp. 1158-1175
Author(s):  
Orlando S Dolores ◽  
Javier M Layme ◽  
Carlos C Huaynate

Abstract The host status of sweet granadilla (Passifflora ligularis Juss.) to Ceratitis capitata (Wiedemann) and Anastrepha fraterculus (Wiedemann) in Peru was determined. Experiments were conducted in Pasco (Peru) in four different orchards, over 2 yr (2016 and 2017), two orchards per year. Choice (granadilla plus natural host) and no-choice foraging behavior trials were conducted using sleeves under field conditions, and forced infestation was examined in laboratory cages, with five females per fruit. The development time of C. capitata was determined, and the oviposition behavior of C. capitata and A. fraterculus was examined. Three fruit maturity stages of intact (n = 1,320) and punctured (n = 1,320) granadilla fruits were examined. Adult C. capitata (n = 4,418) and A. fraterculus (n = 2,484) were trapped in the orchards, and commercial granadilla fruits (n = 1,940) sampled and dissected. Fruit fly infestation was not found in any intact granadilla fruits. Larvae and pupae were found inside punctured granadilla only in fruits broken after 20 d, and adults only emerged when those pupae were removed from the fruit. Ceratitis capitata development time was longer in punctured granadilla than that in host fruit. In the oviposition test, A. fraterculus and C. capitata did not lay eggs in intact granadilla, and C. capitata laid eggs in punctured fruits but larvae were not found. Because of the resistance mechanisms of the pericarp, commercial fruits of Passiflora ligularis are not a natural host of C. capitata and A. fraterculus in Peru.

2019 ◽  
Vol 22 (2) ◽  
pp. 458-470 ◽  
Author(s):  
Peter A. Follett ◽  
Jaime Pinero ◽  
Steve Souder ◽  
Lisa Jamieson ◽  
Barbara Waddell ◽  
...  

2021 ◽  
Vol 34 (1) ◽  
pp. 242-248
Author(s):  
JOÁLISSON GONÇALVES DA SILVA ◽  
CARLOS HENRIQUE DE BRITO ◽  
ROBÉRIO DE OLIVEIRA ◽  
ELTON LÚCIO ARAÚJO ◽  
KENNEDY SANTOS GONZAGA ◽  
...  

ABSTRACT The objective of this study was to characterize, through faunistic indices, the populations of fruit flies in the Brejo Paraibano microregion and analyze whether these populations are similar to one another. The study was conducted in eight municipalities located in the Agreste Paraibano mesoregion and Brejo Paraibano microregion, Paraíba state, Brazil, where two rural properties of each municipality were selected, georeferenced and identified according to the diversity criterion of fruit species. Each municipality was assumed to have a population of fruit flies with its own characteristics, determined by the faunistic indices of frequency, constancy, dominance, Shannon-Wiener and Margalef diversity indices, as well as evenness. 3.159 specimens of fruit flies were captured, of which 85.57% belonged to the genus Anastrepha and 14.43% to the genus Ceratitis. 11 species of fruit flies were captured in the traps. Anastrepha fraterculus was the most frequent, dominant and constant species, being present in all locations; followed by A. obliqua, A. sororcula and Ceratitis capitata. The studied municipalities have a similarity of 54%, which indicates a high similarity between the areas. Most species captured in the present study occur at low population frequency.


2016 ◽  
Vol 83 (0) ◽  
Author(s):  
Sônia Maria Forti Broglio ◽  
Jakeline Maria dos Santos ◽  
Nivia da Silva Dias-Pini ◽  
Daniel Gonçalves Lima Borges da Silva ◽  
Simone Silva da Costa ◽  
...  

ABSTRACT: The aim of this study was to know and assess natural infestation of frugivorous flies (Diptera: Tephritidae and Lonchaeidae) and their parasitoids in Surinam cherry fruits. The survey was conducted in an organic orchard, located in the municipality of Maceió, Alagoas. From October 2010 to January 2011, mature green, half-ripe and ripe Surinam cherry were collected. Infestation index was higher for mature green and half-ripe fruits. Five species of frugivorous flies were identified: Anastrepha fraterculus , Anastrepha obliqua , Anastrepha sororcul , Ceratitis capitata (Diptera: Tephritidae), and Neosilba pendula (Diptera: Lonchaeidae). It were identified the parasitoids: Doryctobracon areolatus , Opius bellus, Utetes anastrephae and Asobara anastrephae (Hymenoptera: Braconidae), being D. areolatus with highest percentage of parasitism in all maturation stages. N . pendula was recorded in Brasil associated to Eugenia uniflora L. (Myrtaceae). O . bellus , U . anastrephae and A . anastrephae were also recorded for the first time in the State of Alagoas. Mature green and half-ripe Surinam cherries are the most fruit fly infested, and the parasitism rate is higher in half-ripe and ripe fruits.


2017 ◽  
Vol 78 (3) ◽  
pp. 443-448 ◽  
Author(s):  
N. P. Dias ◽  
D. E. Nava ◽  
M. S. Garcia ◽  
F. F. Silva ◽  
R. A. Valgas

Abstract Fruit flies (Diptera: Tephritidae) represent a threat to fruit growing worldwide, mainly the citrus culture, however, biological studies show that fruit flies are not perfectly adapted to this host. This study investigated oviposition of Anastrepha fraterculus (Wiedemann, 1830) and Ceratitis capitata (Wiedemann, 1824) and its relation with the pericarp of citrus fruits. We evaluated the relationship between depth of oviposition of A. fraterculus and C. capitata and epicarp thickness of orange [Citrus sinensis (L.) Osbeck)] ‘Navelina’ and tangerine [C. reticulata (L.)] ‘Clemenules’ and the influence of fruit mesocarp of tangerine ‘Clemenules’ on oviposition of these species. The study was conducted under controlled conditions of temperature (25 ± 2 °C), relative humidity (70 ± 10% RH) and photophase (12 h). A. fraterculus and C. capitata laid their eggs in the flavedo region of orange ‘Navelina’ and between the albedo and flavedo of tangerine ‘Clemenules’. When fruits with mesocarp exposed were offered, there was no oviposition by both fruit fly species. The results show that epicarp thickness of citrus fruits did not influence oviposition of A. fraterculus and C. capitata as oviposition did not occur only in the presence of the mesocarp, suggesting that other factors are involved in oviposition of these species.


Author(s):  
Adalton Raga ◽  
Sara Braga e Silva ◽  
Ester Marques de Sousa ◽  
Nilson Borlina Maia

The aim of this study was to evaluate the adulticidal effects of green coffee oil (GCO) and roasted coffee oil (RCO) on two species of fruit flies (Tephritidae) include Ceratitis capitata (Wiedemann) and Anastrepha fraterculus (Wiedemann). Adult flies of both species were exposed to GCO and RCO at 2%, 3%, and 4% dilutions in water under Potter spray tower. In general, exposure to GCO and RCO at the three dilutions resulted in higher numbers of dead adults of both species compared to the control populations. The mortalities increased substantially between 60–90 minutes after initial exposure. The 2% GCO dilution reached a maximum of 77.0% corrected mortality of A. fraterculus at 360 minutes. In general, the toxic effect of coffee oils occurred more rapidly in C. capitata than in A. fraterculus. GCO (2% and 3%) and RCO (2%) showed promising results for fruit fly management.


2018 ◽  
Author(s):  
Doron Shalom Yishai Zaada ◽  
Michael Ben-Yosef ◽  
Boaz Yuval ◽  
Edouard Jurkevitch

AbstractBackground:The Mediterranean fruit fly Ceratitis capitata is a major pest in horticulture. The development of fly larvae is mediated by bacterial decay in the fruit tissue. Despite the importance of bacteria on larval development, very little is known about the interaction between bacteria and larvae in their true ecological context. Understanding their relationship and inter-dependence in the host fruit is important for the development of new pest control interfaces to deal with this pest.Results:We find no negative effects on egg hatch or larval development brought about by the bacterial isolates tested. The various symbionts inhabiting the fly’s digestive system differ in their degree of contribution to the development of fly larvae depending on the given host and their sensitivity to induced inhibition caused by female produced antimicrobial peptides. These differences were observed not only at the genus or species level but also between isolates of the same species. We demonstrate how the microbiota from the mother’s gut supports the development of larvae in the fruit host and show that larvae play a major role in spreading the bacterial contagion in the infected fruit itself. In addition, we present (for the first time) evidence for horizontal transfer of bacteria between larvae of different maternal origin that develop together in the same fruit.Conclusions:Larvae play a major role in the spread and shaping of the microbial population in the fruit. The transfer of bacteria between different individuals developing in the same fruit suggests that the infested fruit serves as a microbial hub for the amplification and spread of bacterial strains between individuals.


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 ◽  
...  

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.


2011 ◽  
Vol 51 (4) ◽  
pp. 413-419 ◽  
Author(s):  
Adalton Raga ◽  
Mário Sato

Toxicity of Neonicotinoids toCeratitis CapitataandAnastrepha Fraterculus(Diptera: Tephritidae)The effects of imidacloprid and thiamethoxam againstCeratitis capitata(Wiedemann) andAnastrepha fraterculus(Wiedemann) adults were evaluated under broadcast spray and toxic bait systems in the laboratory. In general, whenC. capitataandA. fraterculuswere sprayed with insecticides, the time required for killing them was inversely proportional to the neonicotinoid concentrations. By cover spray, females and males ofA. fraterculuswere more susceptible to imidacloprid and thiamethoxam thanC. capitata, presenting significantly lower LT50. In the case of imidacloprid bait, no differences at LT50were detected between females or males of both fruit flies or between sexes of respective fruit fly species. In general,C. capitataandA. fraterculusadults died in all the toxic baits up to 7 days after application on citrus leaves in the field. The data emphasize the viability of the use of neonicotinoids for the control of fruit flies.


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