Can Saccharomycopsis vini and Z4-11Al be used in a push-pull system against the invasive pest Drosophila suzukii?
Drosophila suzukii is a pest with global spread that lays its eggs in soft fruits. It has been deemed potentially invasive to Sweden. Contrary to other Drosophila species, D. suzukii possess a serrated ovipositor which makes it possible for it to lay its eggs in ripening fruits. It thereby avoids co...
| Autor principal: | |
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| Formato: | First cycle, G2E |
| Lenguaje: | sueco Inglés |
| Publicado: |
2022
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| Materias: | |
| Acceso en línea: | https://stud.epsilon.slu.se/17586/ |
| _version_ | 1855572920614518784 |
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| author | Andersson, Hedda |
| author_browse | Andersson, Hedda |
| author_facet | Andersson, Hedda |
| author_sort | Andersson, Hedda |
| collection | Epsilon Archive for Student Projects |
| description | Drosophila suzukii is a pest with global spread that lays its eggs in soft fruits. It has been deemed potentially invasive to Sweden. Contrary to other Drosophila species, D. suzukii possess a serrated ovipositor which makes it possible for it to lay its eggs in ripening fruits. It thereby avoids competition with D. melanogaster, whose larvae outcompetes those of D. suzukii. Moreover, it has an extensive host range including both cultivated and wild plants.
Mated D. suzukii females are drawn to yeast for feeding in the period after mating. The yeast Saccharomycopsis vini has been found attractive. When presented with a substrate D. suzukii actively avoids oviposition in substrate inoculated by D. melanogaster. The species-specific female pheromone of D. melanogaster Z4-11Al is thought to induce oviposition aversion in D. suzukii.
The objective of this study was to test if S. vini and Z4-11Al have the potential of being used in a push-pull system against D. suzukii. Testing took place in a laboratory setting. Ten female D. suzukii flies were released into arenas containing traps and a blueberry providing oviposition substrate. Z4-11Al was dispensed from a vial placed near the blueberry.
Results confirms previous findings that D. suzukii finds the yeast S. vini attractive. S. vini has potential for being used as a trap lure. Regarding the potential of Z4-11Al as an oviposition deterrent, results are inconclusive. There are some indications that Z4-11Al might work to deterred D. suzukii from yeast. |
| format | First cycle, G2E |
| id | RepoSLU17586 |
| institution | Swedish University of Agricultural Sciences |
| language | Swedish Inglés |
| publishDate | 2022 |
| publishDateSort | 2022 |
| record_format | eprints |
| spelling | RepoSLU175862023-06-02T01:15:03Z https://stud.epsilon.slu.se/17586/ Can Saccharomycopsis vini and Z4-11Al be used in a push-pull system against the invasive pest Drosophila suzukii? Andersson, Hedda Pests of plants Drosophila suzukii is a pest with global spread that lays its eggs in soft fruits. It has been deemed potentially invasive to Sweden. Contrary to other Drosophila species, D. suzukii possess a serrated ovipositor which makes it possible for it to lay its eggs in ripening fruits. It thereby avoids competition with D. melanogaster, whose larvae outcompetes those of D. suzukii. Moreover, it has an extensive host range including both cultivated and wild plants. Mated D. suzukii females are drawn to yeast for feeding in the period after mating. The yeast Saccharomycopsis vini has been found attractive. When presented with a substrate D. suzukii actively avoids oviposition in substrate inoculated by D. melanogaster. The species-specific female pheromone of D. melanogaster Z4-11Al is thought to induce oviposition aversion in D. suzukii. The objective of this study was to test if S. vini and Z4-11Al have the potential of being used in a push-pull system against D. suzukii. Testing took place in a laboratory setting. Ten female D. suzukii flies were released into arenas containing traps and a blueberry providing oviposition substrate. Z4-11Al was dispensed from a vial placed near the blueberry. Results confirms previous findings that D. suzukii finds the yeast S. vini attractive. S. vini has potential for being used as a trap lure. Regarding the potential of Z4-11Al as an oviposition deterrent, results are inconclusive. There are some indications that Z4-11Al might work to deterred D. suzukii from yeast. Drosophila suzukii är en invasiv skadegörare på bär som hittades i Sverige första gången 2014. Till skillnad från andra arter av Drosophila har D. suzukii ett sågtandat äggläggningsrör vilket möjliggör äggläggning på omogna och mognande bär. Som värdväxt för sina larver använder D. suzukii en stor mängd kultiverade och vilda växter. Det är känt att arter av Drosophila har samutvecklats med vissa jästsorter vilka återfinns både i deras matspjälkningssystem och i flugornas miljö. Hos D. suzukii har det visat sig att parade honor söker sig till jästrika substrat och jästarten Saccharomycopsis vini har visat sig vara mycket attraktiv. D. suzukiis larver klarar inte konkurrens med larver av Drosophila melanogaster och därför undviker D. suzukii att lägga ägg på substrat som exponerats för D. melanogaster. Det för D. melanogaster honor artspecifika feromonet Z4-11Al tros minska äggläggningsviljan hos D. suzukii. Denna kunskap skulle kunna användas för att utveckla bekämpningsmetoder mer specifika för D. suzukii. Syftet med den här uppsatsen var att testa om jästen S. vini och feromonet Z4-11Al kan användas i ett push-pull bekämpningssystem mot D. suzukii. Experimenten utfördes i laboratoriemiljö. Tio honor släpptes ut i en arena på vilken fällor var placerade. Som äggläggningssubstrat placerades ett blåbär i mitten. Z4-11Al introducerades bredvid blåbäret. Resultaten bekräftar att D. suzukii attraheras av S. vini och att jästarten har potential att användas som lockbete i fällor. Om Z4-11Al kan användas som avskräckande mot äggläggning kan inte definitivt avgöras. Möjligtvis gjorde närvaron av Z4-11Al jästen mindre attraktiv för D. suzukii. 2022-02-28 First cycle, G2E NonPeerReviewed application/pdf sv https://stud.epsilon.slu.se/17586/1/andersson_h_220228.pdf Andersson, Hedda, 2022. Can Saccharomycopsis vini and Z4-11Al be used in a push-pull system against the invasive pest Drosophila suzukii?. First cycle, G2E. Alnarp: (LTJ, LTV) > Dept. of Biosystems and Technology (from 130101) <https://stud.epsilon.slu.se/view/divisions/OID-643.html> urn:nbn:se:slu:epsilon-s-17586 eng |
| spellingShingle | Pests of plants Andersson, Hedda Can Saccharomycopsis vini and Z4-11Al be used in a push-pull system against the invasive pest Drosophila suzukii? |
| title | Can Saccharomycopsis vini and Z4-11Al be used in a push-pull system against the invasive pest Drosophila suzukii? |
| title_full | Can Saccharomycopsis vini and Z4-11Al be used in a push-pull system against the invasive pest Drosophila suzukii? |
| title_fullStr | Can Saccharomycopsis vini and Z4-11Al be used in a push-pull system against the invasive pest Drosophila suzukii? |
| title_full_unstemmed | Can Saccharomycopsis vini and Z4-11Al be used in a push-pull system against the invasive pest Drosophila suzukii? |
| title_short | Can Saccharomycopsis vini and Z4-11Al be used in a push-pull system against the invasive pest Drosophila suzukii? |
| title_sort | can saccharomycopsis vini and z4-11al be used in a push-pull system against the invasive pest drosophila suzukii? |
| topic | Pests of plants |
| url | https://stud.epsilon.slu.se/17586/ https://stud.epsilon.slu.se/17586/ |