scholarly journals Superparasitism in the Fruit Fly Parasitoid Diachasmimorpha longicaudata (Hymenoptera: Braconidae) and the Implications for Mass Rearing and Augmentative Release

Insects ◽  
2012 ◽  
Vol 3 (4) ◽  
pp. 900-911 ◽  
Author(s):  
Pablo Montoya ◽  
Gabriela Pérez-Lachaud ◽  
Pablo Liedo
Keyword(s):  
Fruit Fly ◽  
Mass Rearing ◽  
Diachasmimorpha Longicaudata ◽  
Augmentative Release

Radiation on Medfly Larvae of tsl Vienna-8 Genetic Sexing Strain Displays Reduced Parasitoid Encapsulation in Mass-Reared Diachasmimorpha longicaudata (Hymenoptera: Braconidae)

2020 ◽  
Vol 113 (3) ◽  
pp. 1134-1144 ◽  
Author(s):  
Lorena Suárez ◽  
María Josefina Buonocore Biancheri ◽  
Guillermo Sánchez ◽  
Jorge Cancino ◽  
Fernando Murúa ◽  
...  
Keyword(s):  
Fruit Fly ◽  
Mass Rearing ◽  
Mediterranean Fruit Fly ◽  
Dose Effect ◽  
Temperature Sensitive ◽  
Genetic Sexing ◽  
Diachasmimorpha Longicaudata ◽  
Key Factor ◽  
Genetic Sexing Strain ◽  
Parasitoid Encapsulation

Abstract Improvements in the mass rearing of Diachasmimorpha longicaudata (Ashmead) on larvae of the Vienna-8 temperature-sensitive lethal genetic sexing strain of Ceratitis capitata (Wiedemann) (Diptera: Tephritidae) (= GSS Vienna-8) at the San Juan biofactory, Argentina, are currently under way. Lowering cost production is a key factor regarding parasitoid rearing. Thus, the variation in mass-reared parasitoid encapsulation levels and the incidence of superparasitism were determined; also, the gamma radiation dose-effect relation on host larvae and the influence of Mediterranean fruit fly strain were considered. Naked Mediterranean fruit fly larvae of both GSS Vienna-8 and a wild bisexual strain (= WBS) aged 6-d-old were irradiated at 0, 20, 40, 60, 80, 100, and 120 Gy, and exposed to parasitoid females. Melanization level was tested for encapsulated parasitoid larval first-instars (= L1). Non-irradiated and irradiated WBS larvae at 20–40 Gy displayed a significantly higher incidence of encapsulation when compared with GSS Vienna-8 larvae. The low melanized level in encapsulated parasitoid L1 was the most common melanization process at 72 h puparium dissection. A high melanized level was only found in non-irradiated WBS larvae. Irradiated GSS Vienna-8 larvae can neutralize the host immunological reactions over irradiated WBS larvae much more quickly. Superparasitism intensity in both Mediterranean fruit fly strains was not affected by radiation doses. High levels of superparasitism seemingly helped to overcome the host’s immune reaction by the surviving parasitoid larva. Parasitoid emergence increased from 60 Gy onwards in both Mediterranean fruit fly strains. Radiation in GSS Vienna-8 larvae may favor host’s antagonistic reactions decrease in relation with D. longicaudata development.

Mass-Rearing of the Tephritid Fruit Fly Parasitoid Fopius arisanus (Hymenoptera: Braconidae)1

1999 ◽  
Vol 15 (2) ◽  
pp. 137-144 ◽  
Author(s):  
Renato C Bautista ◽  
Noboru Mochizuki ◽  
John P Spencer ◽  
Ernest J Harris ◽  
Dwayne M Ichimura
Keyword(s):  
Fruit Fly ◽  
Mass Rearing ◽  
Fopius Arisanus

scholarly journals Dispersal capacity of fruit fly parasitoid Diachasmimorpha longicaudata (Hymenoptera: Braconidae) in irrigated coffee plantations

2016 ◽  
Vol 73 (3) ◽  
pp. 227-233 ◽  
Author(s):  
Maria Gisely Camargos ◽  
Clarice Diniz Alvarenga ◽  
Teresinha Augusta Giustolin ◽  
Beatriz Aguiar Jordão Paranhos ◽  
Patrícia Cristina do Carmo Oliveira ◽  
...  
Keyword(s):  
Fruit Fly ◽  
Dispersal Capacity ◽  
Coffee Plantations ◽  
Diachasmimorpha Longicaudata

scholarly journals Effect of Density and Lethargy Duration in Prerelease Packaging of the Fruit Fly (Diptera: Tephritidae) Parasitoid, Diachasmimorpha longicaudata (Hymenoptera: Braconidae)

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Jorge Cancino ◽  
Rubén Leal-Mubarqui ◽  
Roberto Angulo ◽  
Cesar Pérez ◽  
Lucy Tirado
Keyword(s):  
Biological Control ◽  
Fruit Fly ◽  
The Other ◽  
Other Hand ◽  
Great Utility ◽  
Diachasmimorpha Longicaudata ◽  
Flight Capacity ◽  
Fruit Fly Parasitoids

Abstract Different densities prerelease packing and times of lethargy in the fruit fly parasitoids Diachasmimorpha longicaudata (Ashmead) were evaluated in order to standardize the process of chilled insect technique for this species. Adults were kept at densities of 0.048, 0.072, 0.096, 0.120, and 0.144 parasitoids/cm2 before release in a México tower, where thermal lethargy was induced at a temperature of 2 ± 2°C for 45 min. Samples of parasitoids were collected to evaluate mortality, survival, fecundity, and flight capacity. All densities showed a similar mortality, both for males (ca. >10%) and females (ca. <7). There was no effect of density on survival and flight capacity in both sexes. On the other hand, fecundity increased with density, 1.66 sons/♀/day, similar to the control. We conclude that a density of 30,000 pupae per cage (0.144 parasitoids/cm2) is adequate for the massive prerelease packaging of the parasitoid D. longicaudata. Regarding the thermal lethargy period, 180 min under 2 ± 2°C conditions, considered as time for management, does not affect the survival, fecundity, and flight capacity of adults. The results obtained are of great utility to establish prerelease packaging parameters for D. longicaudata used in the biological control of Tephritidae fruit fly populations.

scholarly journals Commensal microbiota modulates larval foraging behaviour, development rate and pupal production in Bactrocera tryoni

2019 ◽  
Vol 19 (S1) ◽  
Author(s):  
Juliano Morimoto ◽  
Binh Nguyen ◽  
Shabnam T. Tabrizi ◽  
Ida Lundbäck ◽  
Phillip W. Taylor ◽  
...  
Keyword(s):  
Development Time ◽  
Foraging Behaviour ◽  
Fruit Fly ◽  
Mass Rearing ◽  
Insect Larvae ◽  
Bactrocera Tryoni ◽  
Commensal Microbiota ◽  
Survival And Growth ◽  
Horizontal Acquisition ◽  
Tephritid Fruit Flies

Abstract Backround Commensal microbes can promote survival and growth of developing insects, and have important fitness implications in adulthood. Insect larvae can acquire commensal microbes through two main routes: by vertical acquisition from maternal deposition of microbes on the eggshells and by horizontal acquisition from the environment where the larvae develop. To date, however, little is known about how microbes acquired through these different routes interact to shape insect development. In the present study, we investigated how vertically and horizontally acquired microbiota influence larval foraging behaviour, development time to pupation and pupal production in the Queensland fruit fly (‘Qfly’), Bactrocera tryoni. Results Both vertically and horizontally acquired microbiota were required to maximise pupal production in Qfly. Moreover, larvae exposed to both vertically and horizontally acquired microbiota pupated sooner than those exposed to no microbiota, or only to horizontally acquired microbiota. Larval foraging behaviour was also influenced by both vertically and horizontally acquired microbiota. Larvae from treatments exposed to neither vertically nor horizontally acquired microbiota spent more time overall on foraging patches than did larvae of other treatments, and most notably had greater preference for diets with extreme protein or sugar compositions. Conclusion The integrity of the microbiota early in life is important for larval foraging behaviour, development time to pupation, and pupal production in Qflies. These findings highlight the complexity of microbial relations in this species, and provide insights to the importance of exposure to microbial communities during laboratory- or mass-rearing of tephritid fruit flies.

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