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Title:Vpliv orehove muhe, Rhagoletis completa (Cresson, 1929) (Diptera: Tephritidae), na razvoj semen navadnega oreha ( Juglans regia L.) : magistrsko delo
Authors:ID Ivančič, Lea (Author)
ID Šajna, Nina (Mentor) More about this mentor... New window
Files:.pdf MAG_Ivancic_Lea_2024.pdf (2,82 MB)
MD5: 84728DECFE18A79CCA60F93ABFA8BC6A
 
Language:Slovenian
Work type:Master's thesis/paper
Typology:2.09 - Master's Thesis
Organization:FNM - Faculty of Natural Sciences and Mathematics
Abstract:Oreh je gospodarsko pomembna drevesna vrsta zaradi lesa in plodov. V 1991 se je v Evropi pojavila tujerodna vrsta sadne muhe iz ZDA in Mehike in je monofag na rodu Juglans- orehova muha (Rhagoletis completa), ki povzroča gospodarsko škodo nasadom orehov. V zadnjih dveh desetletjih se pojavlja tudi v Sloveniji. Orehova muha povzroča škodo na orehih, kjer samica jajčeca izleže v zeleni del ploda, kar vodi do poškodb jedrc. Cilj magistrske naloge je bil preučiti učinek orehove muhe na kakovost jedrc domačega oreha in koristi uporabe koprene kot fizične zaščite. Raziskava, opravljena v nasadu orehov v Skrbljah, je bila osredotočena na vpliv orehove muhe na kakovost jedrc. V dveh opazovalnih letih (2020 in 2022) je bilo razvidno, da je negativni vpliv orehove muhe izrazit, pri čemer je bil leta 2022 opazen manjši učinek zaradi uporabe kopren kot preventivnega ukrepa. V obeh letih je bilo mogoče zaslediti, da imajo plodovi z večjo stopnjo poškodbe zaradi muhe tudi večjo verjetnost poškodovanih jedrc. Ugotovili smo, da je prisotnost ličink v mezokarpu povzročila počrnelost večine endokarpa plodov in semen. Naše ugotovitve prispevajo k razumevanju negativnega učinka prisotnosti orehove muhe v nasadih orehov. Te ugotovitve ne le razkrivajo neposredne finančne posledice, temveč nudijo tudi osnovo za razvijanje strategij zatiranja, s katerimi bi lahko zagotovili zdravje in produktivnost orehovih nasadov v prihodnosti.
Keywords:interakcije rastlina-žival, nove interakcije, tujerodna vrsta, sadne muhe, orehova muha, oreh, škodljivci, zaščita
Place of publishing:Maribor
Place of performance:Maribor
Publisher:[L. Ivančič]
Year of publishing:2024
Number of pages:XII, 46 str.
PID:20.500.12556/DKUM-89075 New window
UDC:632.6:634.51(043.2)
COBISS.SI-ID:200637187 New window
Publication date in DKUM:04.07.2024
Views:74
Downloads:24
Metadata:XML DC-XML DC-RDF
Categories:FNM
:
IVANČIČ, Lea, 2024, Vpliv orehove muhe,  Rhagoletis completa  (Cresson, 1929) (Diptera: Tephritidae), na razvoj semen navadnega oreha ( Juglans regia  L.) : magistrsko delo [online]. Master’s thesis. Maribor : L. Ivančič. [Accessed 23 April 2025]. Retrieved from: https://dk.um.si/IzpisGradiva.php?lang=eng&id=89075
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Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Licensing start date:12.06.2024

Secondary language

Language:English
Title:Impact of the walnut husk fly Rhagoletis completa (Cresson, 1929) ( Diptera: Tephritidae) on the development of walnut seed ( Juglans regia L.)
Abstract:The walnut is an economically important tree species for its wood and fruits. In 1991, a non-native species of fruit fly from the USA and Mexico appeared in Europe and is a monophage of the genus Juglans - the nut fly (Rhagoletis completa), which causes economic damage to walnut plantations. In the last two decades, it has also appeared in Slovenia. The nut fly causes damage to walnuts where female lays eggs in the green part of the fruit, which leads to damage the kernels. The aim of the MSc thesis was to study the impact of nut fly presence on the kernel quality of domestic walnuts and the benefits of using a veil as a mechanical repellent. The study, carried out in a walnut grove in Skrblje, focused on the impact of the nut fly on the quality of the kernels. In the two observation years (2020 and 2022), it was found that the impact of the nut fly is pronounced, with a lower impact in 2022 because of the use of netting as a preventive measure. In both years, it was observed that fruits with a higher level of fly damage were also more likely to have damaged kernels. We found that parasitisation caused blackening of most of the endocarp and the seed. Our findings help to elucidate the understanding of the negative impact of the nut fly in walnut groves. These findings not only reveal the direct economic costs, but also provide a basis for developing control strategies that could ensure the health and productivity of walnut plantations in the future.
Keywords:plant-animal interaction, novel interactions, non-native species, walnut husk fly, fruit flies, walnut, pests, pest control


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