scholarly journals Thermal Performance of Two Indigenous Pupal Parasitoids Attacking the Invasive Drosophila suzukii (Diptera: Drosophilidae)

2018 ◽  
Vol 47 (3) ◽  
pp. 764-772 ◽  
Author(s):  
Xin-Geng Wang ◽  
Michael A Serrato ◽  
Youngsoo Son ◽  
Vaughn M Walton ◽  
Brian N Hogg ◽  
...  
Keyword(s):  
Thermal Performance ◽  
Drosophila Suzukii ◽  
Pupal Parasitoids

Biological and Population Parameters, as well as Oviposition Preference, of Two Pupal Parasitoids of Drosophila suzukii (Diptera: Drosophilidae) in Mexico

2020 ◽  
Vol 55 (1) ◽  
pp. 87
Author(s):  
Maria D. Garcia-Cancino ◽  
Jaime Gonzalez-Cabrera ◽  
Jorge A. Sanchez-Gonzalez ◽  
Hugo C. Arredondo-Bernal
Keyword(s):  
Oviposition Preference ◽  
Population Parameters ◽  
Drosophila Suzukii ◽  
Pupal Parasitoids

scholarly journals Multiscale Determinants Drive Parasitization of Drosophilidae by Hymenopteran Parasitoids in Agricultural Landscapes

Insects ◽  
2020 ◽  
Vol 11 (6) ◽  
pp. 334 ◽  
Author(s):  
Valeria Trivellone ◽  
Michela Meier ◽  
Corrado Cara ◽  
Lucia Pollini Paltrinieri ◽  
Felix Gugerli ◽  
...  
Keyword(s):  
Biological Control ◽  
Habitat Type ◽  
Agricultural Landscapes ◽  
Drosophila Suzukii ◽  
Control Programs ◽  
Native Parasitoids ◽  
Extensive Field ◽  
Pupal Parasitoids ◽  
Abiotic And Biotic Factors ◽  
Using Data

(1) The management of agricultural landscapes for pest suppression requires a thorough understanding of multiple determinants controlling their presence. We investigated the ecological preferences of indigenous parasitoids and their drosophilid hosts to understand the role of native parasitoids as biological control agents of the invasive frugivorous Drosophila suzukii. (2) Using data from an extensive field survey across different habitat types we analyzed the influence of abiotic and biotic factors on parasitoid and drosophilid communities at multiscale levels. (3) Eight parasitoid and 27 drosophilid species were identified. Thirty-four percent variation in drosophilid communities was explained by factors at the landscape scale, and 52% of significant variation of parasitoids by local distribution of three drosophilid species, mainly collected in woodland. Parasitoid communities were significantly influenced by microhabitat type (ground versus canopy) rather than habitat type. All parasitoids except Pachycrepoideus vindemmiae preferred the ground microhabitat. All parasitoids, with the exception of Trichopria drosophilae and Spalangia erythromera, displayed significant preferences among the drosophilid species used in the baited traps. (4) Since they can tolerate a broad range of habitat factors, altogether pupal parasitoids investigated in this study could play a role in biological control programs to suppress D. suzukii, but non-target effects have to be regarded.

scholarly journals Ability of Muscidifurax raptorellus and Other Parasitoids and Predators to Control Drosophila suzukii Populations in Raspberries in the Laboratory

Insects ◽  
2019 ◽  
Vol 10 (3) ◽  
pp. 68 ◽  
Author(s):  
Phanie Bonneau ◽  
Justin Renkema ◽  
Valérie Fournier ◽  
Annabelle Firlej
Keyword(s):  
Life Stage ◽  
Invasive Pest ◽  
Adult Size ◽  
Orius Insidiosus ◽  
Drosophila Suzukii ◽  
Biological Responses ◽  
Pupal Parasitoids ◽  
Berry Crops ◽  
Biological Control Potential ◽  
Size Variability

Drosophila suzukii is an invasive pest and economic threat to berry crops in Europe and the Americas. Current methods of control of this pest rely primarily on frequent applications of insecticides; therefore, there is a need for alternative control methods to reduce insecticide reliance. In this study, we evaluated the biological control potential of three parasitoid wasps: Diglyphus isaea, Muscidifurax raptorellus and Pachycrepoideus vindemmiae, and four predators: Chrysoperla carnea, Dicyphus hesperus, Orius insidiosus and Podisus maculiventris. Experiments were conducted for 15 days under controlled conditions in experimental arenas with D. suzukii females and raspberries, allowing for all life stages of D. suzukii to be available to natural enemies. Results showed the first evidence of M. raptorellus’s ability to parasitize D. suzukii, resulting in a 40% reduction. Orius insidiosus, P. vindemmiae and C. carnea were also efficient, reducing D. suzukii numbers by 49%, 43% and 32%, respectively. Predator preferences for each D. suzukii life stage were assessed. The clutch size, sex ratio and adult size variability of D. suzukii pupal parasitoids were also evaluated. This study expands the list of species that can effectively parasitize D. suzukii and provides new insights into the biological responses of M. raptorellus to D. suzukii pupae.

Host searching and host preference of resident pupal parasitoids of Drosophila suzukii in the invaded regions

2020 ◽  
Vol 77 (1) ◽  
pp. 243-252
Author(s):  
Sarah Wolf ◽  
Elias Barmettler ◽  
Michael Eisenring ◽  
Jörg Romeis ◽  
Jana Collatz
Keyword(s):  
Host Preference ◽  
Host Searching ◽  
Drosophila Suzukii ◽  
Pupal Parasitoids

Experimental study of thermohydraulic characteristics and irreversibility analysis of novel axial corrugated tube with spring tape inserts

2020 ◽  
Vol 92 (3) ◽  
pp. 30901
Author(s):  
Suvanjan Bhattacharyya ◽  
Debraj Sarkar ◽  
Ulavathi Shettar Mahabaleshwar ◽  
Manoj K. Soni ◽  
M. Mohanraj
Keyword(s):  
Heat Transfer ◽  
Experimental Study ◽  
Thermal Performance ◽  
Working Fluid ◽  
The Novel ◽  
Heat Exchanger Tube ◽  
Heat Transfer Augmentation ◽  
Corrugated Tube ◽  
The Impact ◽  
Exchanger Tube

The current study experimentally investigates the heat transfer augmentation on the novel axial corrugated heat exchanger tube in which the spring tape is introduced. Air (Pr = 0.707) is used as a working fluid. In order to augment the thermohydraulic performance, a corrugated tube with inserts is offered. The experimental study is further extended by varying the important parameters like spring ratio (y = 1.5, 2.0, 2.5) and Reynolds number (Re = 10 000–52 000). The angular pitch between the two neighboring corrugations and the angle of the corrugation is kept constant through the experiments at β = 1200 and α = 600 respectively, while two different corrugations heights (h) are analyzed. While increasing the corrugation height and decreasing the spring ratio, the impact of the swirling effect improves the thermal performance of the system. The maximum thermal performance is obtained when the corrugation height is h = 0.2 and spring ratio y = 1.5. Eventually, correlations for predicting friction factor (f) and Nusselt number (Nu) are developed.

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