scholarly journals The firethorn (Pyracantha coccinea), a promising dead-end trap plant for the biological control of the spotted-wing Drosophila (Drosophila suzukii)

2020 ◽  
Vol 150 ◽  
pp. 104345
Author(s):  
Romain Ulmer ◽  
Aude Couty ◽  
Patrice Eslin ◽  
Fausta Gabola ◽  
Olivier Chabrerie
Keyword(s):  
Biological Control ◽  
Spotted Wing Drosophila ◽  
Drosophila Suzukii ◽  
Dead End ◽  
Pyracantha Coccinea

scholarly journals Biological Control of Spotted-Wing Drosophila (Diptera: Drosophilidae)—Current and Pending Tactics

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Jana C Lee ◽  
Xingeng Wang ◽  
Kent M Daane ◽  
Kim A Hoelmer ◽  
Rufus Isaacs ◽  
...  
Keyword(s):  
Biological Control ◽  
Natural Enemy ◽  
Life Stage ◽  
Residual Activity ◽  
Field Trials ◽  
Spotted Wing Drosophila ◽  
Drosophila Suzukii ◽  
The Impact ◽  
Near Future ◽  
Dose Dependent

Abstract Spotted-wing drosophila, Drosophila suzukii (Matsumura) (Diptera: Drosophilidae) is originally from Asia, and in the last decade it has become a global economic pest of small fruits and cherries. Growers have expressed strong interest in biological control and other sustainable tactics to reduce reliance on insecticides. Biological control of spotted-wing drosophila has been studied intensively, with over 75 research publications. Here, we are reporting current information on predators, parasitoids, pathogens (fungi, nematodes, bacteria, endosymbiotic bacteria, and viruses), and competitors of spotted-wing drosophila. When relevant for the natural enemy group, the discussion focuses on the impact each natural enemy has been observed to have in the field, how to optimize control, the efficacy of commercial products available, and options that may be available in the near future. Studies are summarized in tables that can be sorted by species, spotted-wing drosophila life stage targeted, outcomes, lab/field trials, and studies that examined residual activity, dose-dependent responses, or other effects.

scholarly journals Evidence for a cryptic parasitoid species reveals its suitability as a biological control agent

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
M. Lukas Seehausen ◽  
Nicolas Ris ◽  
Laetitia Driss ◽  
Alessandro Racca ◽  
Pierre Girod ◽  
...  
Keyword(s):  
Biological Control ◽  
Biological Control Agent ◽  
Taxonomic Status ◽  
Parasitoid Wasp ◽  
Control Agent ◽  
Spotted Wing Drosophila ◽  
Drosophila Suzukii ◽  
Crossing Experiments ◽  
Parasitoid Species ◽  
Control Programs

Abstract Uncertainty about the taxonomic status and the specificity of a species commonly prevent its consideration as a candidate for biological control of pest organisms. Here we use a combination of molecular analysis and crossing experiments to gather evidence that the parasitoid wasp Ganaspis brasiliensis, a candidate for biological control of the invasive spotted wing drosophila Drosophila suzukii, is a complex of at least two cryptic species. Complementary experiments demonstrate that individuals from one genetic group readily parasitize several drosophila species regardless of their food source while individuals from the other one are almost exclusively specific to larvae feeding in ripening fruits. Because only D. suzukii attacks ripening fruits in its area of invasion, parasitoids from this second group appear to be well suited as a biological control agent. Our study demonstrates the need for a combination of biosystematics with biological and ecological investigations for the development of safe and efficient biological control programs.

Impact of phagostimulants on effectiveness of OMRI‐listed insecticides used for control of spotted‐wing drosophila ( Drosophila suzukii Matsumura)

2019 ◽  
Vol 143 (6) ◽  
pp. 609-625 ◽  
Author(s):  
Craig R. Roubos ◽  
Bal K. Gautam ◽  
Philip D. Fanning ◽  
Steven Van Timmeren ◽  
Janine Spies ◽  
...  
Keyword(s):  
Spotted Wing Drosophila ◽  
Drosophila Suzukii

scholarly journals More Power with Flower for the Pupal Parasitoid Trichopria drosophilae: A Candidate for Biological Control of the Spotted Wing Drosophila

Insects ◽  
2021 ◽  
Vol 12 (7) ◽  
pp. 628
Author(s):  
Annette Herz ◽  
Eva Dingeldey ◽  
Camilla Englert
Keyword(s):  
Biological Control ◽  
Flowering Plants ◽  
Spotted Wing Drosophila ◽  
Floral Resources ◽  
Lifetime Fecundity ◽  
Threefold Increase ◽  
Candidate Species ◽  
Berry Crops ◽  
Males And Females ◽  
Crop System

Parasitoids are currently considered for biological control of the spotted wing drosophila (SWD) in berry crops. Releases of mass-reared parasitoids require the presence of all resources necessary to ensure their effectiveness in the crop system. The use of floral resources to feed Trichopria drosophilae, one of the candidate species, was investigated in a laboratory study. The life expectancy of males and females increased by three to four times when they had access to flowers of buckwheat or of two cultivars of sweet alyssum. Female realized lifetime fecundity increased from 27 offspring/female exposed to water only to 69 offspring/female exposed to buckwheat flowers. According to this almost threefold increase in parasitoid fitness, it is advisable to introduce flowering plants into the crop system, when parasitoid releases are carried out. Sweet alyssum offers the advantage of not growing too tall in combination with an extended blooming. However, adult SWD were also able to feed on flowers of both plants and survived for at least 27 days, much longer than starving flies. The introduction of flowering plants to promote natural enemies therefore requires further consideration of the risk–benefit balance under field conditions to prevent unintended reinforcement of this pest.

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