scholarly journals Releases of Trichopria drosophilae on cherry, in three locations at different altitudes in South Tyrol (northeastern Italy) and its potential to parasitize Drosophila suzukii

2020 ◽  
Vol 2 ◽  
Author(s):  
Martina Falagiarda ◽  
Silvia Schmidt
Keyword(s):  
Biological Control ◽  
Population Regulation ◽  
Drosophila Suzukii ◽  
Pupal Parasitoid ◽  
South Tyrol ◽  
Surrounding Environment ◽  
Northeastern Italy ◽  
Different Altitudes ◽  
Production Losses

In recent years, Drosophila suzukii Matsumura (Diptera: drosophilidae) caused serious damages in cherries and small fruits cultivations in South Tyrol, making it difficult for growers to continue their activities without production losses. Biological control of the pest could play an important role in its population regulation, by lowering the pest pressure at the beginning of the season. This study aims to evaluate the potential of Trichopria drosophilae Perkins (Hymenoptera: Diapriidae), an indigenous pupal parasitoid of drosophilids, in parasitizing D. suzukii in cherry orchards situated at different altitudes and characterized by different agronomic peculiarities. The release trials showed the ability of the parasitoid to find and parasitize artificially exposed pupae of D. suzukii in two out of three localities, up to 915 m. The results highlight the importance for the released species of an adequate surrounding environment for its spread and establishment.

Biological control of Drosophila suzukii.

2020 ◽  
Vol 15 (054) ◽  
Author(s):  
Xing-eng Wang
Keyword(s):  
Biological Control ◽  
Natural Enemies ◽  
Control Strategies ◽  
Pathogenic Fungi ◽  
Classical Biological Control ◽  
Research Progress ◽  
Drosophila Suzukii ◽  
Control Programs ◽  
Crop Fields ◽  
Indigenous Natural Enemies

Abstract Drosophila suzukii (Matsumura) is native to East Asia but has widely established in the Americas and Europe, where it is a devastating pest of soft-skinned fruits. It has a wide host range and these non-crop habitats harbor the fly which then repeatedly reinvades crop fields. Biological control in non-crop habitats could be the cornerstone for sustainable management at the landscape level. Toward this goal, researchers have developed or investigated biological control tactics. We review over 100 studies, conducted in the Americas, Asia and Europe on natural enemies of D. suzukii. Two previous reviews provided an overview of potential natural enemies and detailed accounts on foreign explorations. Here, we provide an up-to-date list of known or evaluated parasitoids, predators and entomopathogens (pathogenic fungi, bacteria, nematodes, and viruses) and summarize research progress to date. We emphasize a systematic approach toward the development of biological control strategies that can stand alone or be combined with more conventional control tools. Finally, we propose a framework for the integrated use of biological control tools, from classical biological control with host-specific Asian parasitoids, to augmentative and conservation biological control with indigenous natural enemies, to the use of entomopathogens. This review provides a roadmap to foster the use of biological control tools in more sustainable D. suzukii control programs.

scholarly journals Field Monitoring of Drosophila suzukii and Associated Communities in South Eastern France as a Pre-Requisite for Classical Biological Control

Insects ◽  
2017 ◽  
Vol 8 (4) ◽  
pp. 124 ◽  
Author(s):  
Laurent Kremmer ◽  
Marcel Thaon ◽  
Nicolas Borowiec ◽  
Jean David ◽  
Marylène Poirié ◽  
...  
Keyword(s):  
Biological Control ◽  
Classical Biological Control ◽  
Field Monitoring ◽  
Drosophila Suzukii ◽  
South Eastern

scholarly journals Host specificity of Asian parasitoids for potential classical biological control of Drosophila suzukii

2018 ◽  
Vol 91 (4) ◽  
pp. 1241-1250 ◽  
Author(s):  
Pierre Girod ◽  
Océane Lierhmann ◽  
Teddy Urvois ◽  
Ted C. J. Turlings ◽  
Marc Kenis ◽  
...  
Keyword(s):  
Biological Control ◽  
Host Specificity ◽  
Classical Biological Control ◽  
Drosophila Suzukii

scholarly journals Biological Control ofSolenopsisFire Ants byPseudacteonParasitoids: Theory and Practice

2012 ◽  
Vol 2012 ◽  
pp. 1-11 ◽  
Author(s):  
Lloyd W. Morrison
Keyword(s):  
Biological Control ◽  
Population Regulation ◽  
Field Experiments ◽  
Competitive Exclusion ◽  
Theory And Practice ◽  
Fire Ants ◽  
Relative Importance ◽  
Top Down ◽  
Host System ◽  
Research Findings

Pseudacteonparasitoids are potential biocontrol agents of invasiveSolenopsisfire ants.Pseudacteonspecies that parasitize the invasiveS. invictaBuren andS. richteriForel have been introduced to, and naturally dispersed across, the southeastern USA, although there is no evidence yet thatSolenopsishost ant populations have decreased. The ability of introducedPseudacteonspecies to regulateSolenopsispopulations will depend upon the relative importance of top-down effects in the recipient communities. In this paper, I examine the characteristics of thePseudacteon/Solenopsisparasitoid/host system and evaluate the extent to which research findings are consistent with top-down control. Laboratory and field experiments evaluatingSolenopsispopulation regulation have been equivocal, and overall the available evidence provides little support for strong top-down effects in this system. Competitive exclusion may occur among introducedPseudacteonspecies, and future efforts at biological control are likely to be more efficacious if they focus on other types of natural enemies.

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