Pošlji prispevek (e-pošta) Vpliv listnega izvlečka modrega evkalipta (Eucalyptus globulus Labill.) na skladiščnega hrošča Callosobruchus maculatus (Fabricius, 1775) (Coleoptera: Chrysomelidae)
Povzetek
Za preučitev učinkovitosti izvlečkov listov modrega evkalipta (Eucalyptus globulus) na zmanšanje skladiščnih izgub, ki jih povzroča hrošč Callosobruchus maculatus na semenu kitajske vinje (‘RSH 256’) je bil izveden laboratorijski poskus. 450 g zmletih listov modrega evkalipta je bilo v 1000 ml steklenicah prelitih s 450 ml topila n-heksana. Vpliv izvlečka je bil preiskušen v odmerkih 50, 100 in 150 µl na 50 g semena kitajske vinje, naseljenega s hroščem. Različni odmerki so povzročili značilne razlike (p < 0,05) v smrtnosti hrošča v primerjavi s kontrolo. Različni odmerki so povzročili tudi značilne razlike v pojavljanju (p < 0,05) odraslih hroščev F1 rodu v primerjavi s kontrolo. Tudi odstotka izgube mase in poškodovanosti zrnja sta se zmanjšala kot posledica nanosa izvlečka listov modrega evkalipta v primerjavi s kontrolo. Med obravnavanji je imela uporaba 150 µl izvlečka listov modrega evkalipta na 150 g semena kitajske vinje največji vpliv na smrtnost škodljivca in zmanjšanje pojavljanja imagov, medtem ko je bila njihova smrtnost v kontroli najmanjša, pojavljanje pa največje. Uporabljeni odmerki izvlečkov dokazujejo bioaktivne učinke modrega evkalipta.
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PDF (English)Literatura
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DOI: http://dx.doi.org/10.14720/aas.2020.116.2.1689
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