magistrsko delo
Matej Ščuka (Author), Žiga Laznik (Mentor), Zalika Črepinšek (Thesis defence commission member), Ana Slatnar (Thesis defence commission member)

Abstract

Marmorirana smrdljivka (Halyomorpha halys [Stål]) je v Sloveniji relativno nov škodljivec, ki se je leta 2017 prvič pojavil na Primorskem. Gre za invazivno, tujerodno vrsto stenice, ki izvira iz Vzhodne Azije. Marmorirana smrdljivka je polifag, saj napada in se prehranjuje z ogromnim številom rastlinskih vrst, med katerimi je zelo veliko takih, ki jih gojimo za prehrano ljudi in živali. Največ škode povzroči stenica med prehranjevanjem, neprijeten pa je tudi vonj, ki ga stenica izloča. Marmorirano smrdljivko najpogosteje zatiramo s kemičnimi insekticidi, vendar je zaradi trenda zmanjševanja fitofarmacevtskih sredstev vedno več poudarka na preventivni uporabi snovi, ki škodljive organizme odganjajo ali pa so atraktanti v vabah. Največkrat gre za naravne spojine, ki jih rastlina izloča v samoobrambi ob napadu škodljivca, lahko pa so v rastlini prisotne ves čas. Običajno so to eterična olja ali sekundarni hlapni metaboliti. V tej študiji smo testirali odziv marmorirane smrdljivke na izbrane kemične snovi citronelal, heksanal, nonanol, β-cariofilen, linalool, ocimen, nerolidol, terpinolen, α-humulen, dimetil sulfid, feromon in etanol. Poskus je potekal v olfaktrometru s tremi posodami. Sredinska posoda je bila namenjena stenici, stranski dve pa izbranim kemičnim snovem ali vodi, ki smo jo uporabili za kontrolo. Poskus je potekal v dveh serijah. V prvi smo testirali kemične snovi proti vodi, v drugi pa smo med seboj testirali snovi, ki so se v prvem delu poskusa najbolje izkazale. V prvi seriji so se najbolje izkazali nerolidol, ocimen in terpinolen kot popolni repelenti in etanol kot atraktant. V drugi seriji se je med preučevanimi snovmi kot najboljši repelent izkazal nerolidol.

Keywords

škodljivci rastlin;varstvo rastlin;marmorirana smrdljivka;

Data

Language: Slovenian
Year of publishing:
Typology: 2.09 - Master's Thesis
Organization: UL BF - Biotechnical Faculty
Publisher: [M. Ščuka]
UDC: 632.7:632.9(043.2)
COBISS: 166599939 Link will open in a new window
Views: 51
Downloads: 9
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Other data

Secondary language: English
Secondary title: Response of marmorated stink bug (Halyomorpha halys [Stål], Hemiptera, Pentatomidae) to selected chemicals
Secondary abstract: The brown marmorated stink bug (Halyomorpha halys [Stål]) is a relatively new pest in Slovenia that first appeared on the coast in 2017. It is an invasive, non-native species of stink bug originating from Eastern Asia. The brown marmorated stink bug is a polyphagous insect, attacking and feeding on a wide range of plant species, including many that are cultivated for human and animal consumption. The bug causes the most damage during feeding, and it also emits an unpleasant odor. Chemical insecticides are commonly used to control the brown marmorated stink bug, but there is an increasing emphasis on preventive measures due to the decreasing use of phytopharmaceuticals. These preventive measures involve the use of substances that repel harmful organisms or act as attractants in baits. Often, these substances are natural compounds that plants release as a self-defense mechanism against pests and can be present in the plant at all times. Typically, these compounds are essential oils and other volatile secondary metabolites. In this study, we tested the response of the brown marmorated stink bug to selected chemical substances: citronellal, hexanal, nonanol, β-caryophyllene, linalool, ocimene, nerolidol, terpinolen, α-humulene, dimethyl sulfide, pheromone, and ethanol. The experiment was conducted in an olfactometer with three chambers. The central chamber was for the stink bug, while the two side chambers contained the selected chemical substances or water as a control. The experiment was carried out in two series. In the first series, we tested the chemical substances against water, and in the second series, we compared the substances that performed best in the first part of the experiment. In the first series, nerolidol, ocimene, and terpinolen showed the best results as complete repellents, while ethanol acted as an attractant. In the second series, nerolidol proved to be the most effective repellent among all the tested substances
Secondary keywords: Halyomorpha halys;
Type (COBISS): Master's thesis/paper
Study programme: 0
Embargo end date (OpenAIRE): 1970-01-01
Thesis comment: Univ. v Ljubljani, Biotehniška fak., Oddelek za agronomijo
Pages: 1 spletni vir (1 datoteka PDF (VIII, 37 str.))
ID: 20015602