scholarly journals Olfactory Specialization in Drosophila suzukii Supports an Ecological Shift in Host Preference from Rotten to Fresh Fruit

2015 ◽  
Vol 41 (2) ◽  
pp. 121-128 ◽  
Author(s):  
Ian W. Keesey ◽  
Markus Knaden ◽  
Bill S. Hansson
Keyword(s):  
Host Preference ◽  
Fresh Fruit ◽  
Drosophila Suzukii

scholarly journals Mind the Wound!—Fruit Injury Ranks Higher than, and Interacts with, Heterospecific Cues for Drosophila suzukii Oviposition

Insects ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 424
Author(s):  
Renate Kienzle ◽  
Marko Rohlfs
Keyword(s):  
Host Selection ◽  
Host Preference ◽  
Oviposition Preference ◽  
Drosophila Species ◽  
Drosophila Suzukii ◽  
Fecal Matter ◽  
Potential Host ◽  
Naturally Occurring ◽  
Globally Distributed ◽  
Hierarchical Manner

Drosophila suzukii is a globally distributed insect that infests many economically important fruit varieties by ovipositing into ripening fruits. The mechanisms underlying host selection, in particular the fly’s preference for fresh, intact, and competitor-free fruits, are only partially understood. We hypothesize that D. suzukii females use cues of different fruit properties to rank potential host fruits in a hierarchical manner. We created four naturally occurring fruit (blueberries) categories: (1) intact; (2) artificially wounded; (3) wounded + containing eggs of different Drosophila species; and (4) intact + exposed to D. melanogaster. Individual D. suzukii females were offered several fruits in different two-way combinations of the fruit categories. Females showed a robust oviposition preference for intact vs. wounded + infested fruits, which was even stronger compared to the intact–wounded combination. Females preferred ovipositing into intact vs. intact + exposed blueberries; however, they preferred intact + exposed over wounded blueberries. This implies a hierarchical host preference in D. suzukii, which is determined by heterospecific cues (possibly fecal matter components) and an unknown “wounding factor” of fruits.

Postharvest Quarantine Treatments for Drosophila suzukii in Fresh Fruit

2020 ◽  
pp. 255-267
Author(s):  
Spencer S. Walse ◽  
Dong H. Cha ◽  
Byung-Ho Lee ◽  
Peter A. Follett
Keyword(s):  
Fresh Fruit ◽  
Drosophila Suzukii

scholarly journals The preference of Trichopria drosophilae for pupae of Drosophila suzukii is independent of host size

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Benedikt J. M. Häussling ◽  
Judith Lienenlüke ◽  
Johannes Stökl
Keyword(s):  
Host Preference ◽  
Biocontrol Agent ◽  
Parasitoid Wasps ◽  
Drosophila Suzukii ◽  
Significant Preference ◽  
Video Recordings ◽  
Promising Agent ◽  
Pupal Size ◽  
Host Pupa ◽  
Set Up

AbstractControlling the cosmopolitan pest Drosophila suzukii (spotted wing drosophila) is a challenge for fruit growers. A promising agent for biological control of that pest are parasitoid wasps. Especially the widespread pupal parasitoid Trichopria drosophilae had shown the ability to parasitise the pest fly. However, as a biocontrol agent, parasitoids can only be effective when they prefer the pest to other insects. Until now studies have been inconsistent concerning the preference of T. drosophilae for D. suzukii and whether the preference depends on pupal volume. To clarify this inconsistency, we used video recordings of parasitisation experiments with a set up to observe the direct host preference of the parasitoid. Additionally, the volume of each host pupa was measured. We found significant preference of T. drosophilae for D. suzukii pupae independent of the pupal size and of the host species the wasps were reared on. The article also discusses the sex ratio and the success of the parasitoid in the different pupae characteristics.

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

STRESS PADA LANSIA MENJADI FAKTOR PENYEBAB DAN AKIBAT TERJADINYA PENYAKIT

2015 ◽  
Vol 6 (2) ◽  
Author(s):  
Nur Hidaayah
Keyword(s):  
Drinking Water ◽  
Free Radicals ◽  
The Elderly ◽  
The State ◽  
Young Age ◽  
Fresh Fruit ◽  
Stress Conditions ◽  
Harmful Substances ◽  
Available Resources

Stress conditions in the elderly means an imbalance condition of biological, psychological, and social are closely related to the response to the threats and dangers faced by the elderly. Pressure or interference that is not fun is usually created when the elderly see a mismatch between the state and the 3 systems available resources. Maintenance actions that need to be done there are 2 types, namely : prevention of exposure to a stressor (precipitation factor) and serious treatment of the imbalance condition/ illness (precipitation factor). Prevention includes: sports, hobbies, friendship, avoid eating foods high in free radicals and harmful substances, sex and setting arrangements adequate rest. Habits of the above if done at a young age to avoid exposure to stress in the elderly. Treatment of the imbalance condition / illness, include : drinking water, meditation, eating fresh fruit, and adequate rest.

Fresh Fruit, Broken Bodies

2013 ◽  
Author(s):  
Seth Holmes
Keyword(s):  
Fresh Fruit
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