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Laboratorijsko preučevanje kontaktnega delovanja različnih vrst lesnega pepela na lazarje (Arion spp., Gastropoda, Arionidae)
Košelnik, Kristina (Author), Laznik, Žiga (Mentor) More about this mentor... This link opens in a new window

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Abstract
Polže iz družine lazarjev uvrščamo med gospodarsko pomembne vrste, ki lahko povzročijo veliko gospodarsko škodo na gojenih rastlinah. Škodo povzročajo tako na pridelovalnih površinah, kjer uspevajo poljščine, kot tudi vrtnine, sadne rastline, zelišča in krma za živali. V letih razmnožitve je povzročena škoda lahko precej velika, zato se pridelovalci in ljubiteljski vrtičkarji mnogokrat poslužujejo uporabe limacidov. Nekateri od njih so nevarni za ljudi, toplokrvne živali, ribe in druge ne-ciljne, tudi koristne organizme. Ozaveščanje pridelovalcev in ostale javnosti o škodljivih učinkih sintetično pridobljenih fitofarmacevtskih sredstev je pomembno pripomoglo k povpraševanju po alternativnih sredstvih za zatiranje lazarjev. Eno izmed tovrstnih sredstev je tudi lesni pepel. Vpliv različnih vrst lesnega pepela na lazarje je bil preučevan v sklopu tega magistrskega dela. Preučevali smo učinkovitost kontaktnega delovanja pepela štirih lesnih vrst: bukev, hrast, jelka in smreka. Predvidevali smo, da različne vrste lesnega pepela drugače vplivajo na lazarje. Z valjanjem lazarjev v pepelu smo preučevali spremembe pri prehranjevanju, spremembe telesne mase in smrtnost. V poskusu s postavitvijo ovire smo poleg prej omenjenih parametrov preučevali še prečkanje pepelnate ovire. Najučinkovitejše kontaktno delovanje/kot ovira ima hrastov lesni pepel, ki je povzročil visoko smrtnost lazarjev. Najmanj učinkovit je bukov lesni pepel, ki lazarje ne ovira pri hranjenju, jih ne odvrača in nima letalnega učinka.

Language:Slovenian
Keywords:Gastropoda, Arion spp., lazarji, laboratorijski poskus, kontaktno delovanje, zatiranje, lesni pepel, okoljsko sprejemljive snovi, varstvo rastlin
Work type:Master's thesis/paper (mb22)
Tipology:2.09 - Master's Thesis
Organization:BF - Biotechnical Faculty
Year:2019
Publisher:[K. Košelnik]
UDC:632.64:632.937:628.477.7(043.2)
COBISS.SI-ID:9165177 Link is opened in a new window
Views:277
Downloads:126
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Secondary language

Language:English
Title:Laboratory investigation on contact efficacy of various types of wood ashes against slugs (Arion spp., Gastropoda, Arionidae)
Abstract:
Slugs are classified as an economically important species which can cause significant damage to cultivated plants. The yield loss can be seen in areas where field crops, vegetable crops, fruit crops and herbs are grown. Due to extensive damage caused by the year’s long reproduction of slugs, the farmers and hobby farmers often use limacides. Some of these chemicals may be dangerous to people, homeothermic animals, fish and other animals, even beneficial organisms. By raising awareness on the harmful effects of synthetically produced pesticides, farmers and the rest of the public have significantly increased the demands for alternative means and measures of slug control. One of such means is wood ash. In our experiment, the effects of different types of wood ash have been studied on their contact efficacy against slugs. Four types of wood ash (beech, oak, fir, spruce) have been investigated. Changes in slugs' nourishment, body mass and rates of mortality have been thoroughly studied while rolling the slugs in the ashes. Besides the afore mentioned parameters, the obstacle test which included the crossing of the obstacle was performed. The best contact efficacy has been determined with the use of oak ash. Oak ash also caused the highest mortality of the slugs. The least effective was the beech ash, as it doesn't affect the nourishment of the slugs, nor does it divert them or has lethal effects.

Keywords:Gastropoda, Arion spp., slugs, laboratory experiment, contact efficacy, controlling, wood ash, environmentally safe compounds, plant protection

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