Osjetljivost krumpirove zlatice na insekticide dozvoljene za primjenu u Republici Hrvatskoj

master's thesis

• Title (english): Susceptibility of Colorado potato beetle to insecticides allowed for application in the Republic of Croatia
• Author: Jakov Mandić
• Mentor: Darija Lemić (mentor)
• Committee member: Darija Lemić (predsjednik povjerenstva)
• Committee member: Renata Bažok (član povjerenstva)
• Committee member: Maja Čačija (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Department of Agricultural Zoology); Zagreb
• Defense date and country: 2020-05-15, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Krumpirova zlatica (Leptinotarsa decemlineata Say) najvažniji je štetnik krumpira. Zbog svoje brze prilagodbe i razvoja rezistentnosti stvara velike probleme u kemijskom suzbijanju. Do sada je u svijetu zabilježeno 300 slučajeva rezistentnosti krumpirove zlatice na 56 djelatnih tvari insekticida. Rezistentnost krumpirove zlatice u Hrvatskoj dokazana je na klorirane ugljikovodike, organofosforne insekticide, karbamate i piretroide. Cilj rada bio je utvrditi osjetljivost ličinki krumpirove zlatice na dozvoljene insekticide u Republici Hrvatskoj (klorpirifos, cipermetrin, tiakloprid, klorantraniliprol, metaflumizon, spinosad i lufenuron) na deset lokacija iz šest županija kontinentalne Hrvatske. U 2018. laboratorijski testovi provedeni su prema IRAC test metodi 007, potapanjem listova krumpira za ishranu kukaca u škropiva različitih insekticida. Populacije su klasificirane u pet kategorija temeljem učinkovitosti preporučene doze 48 sati nakon tretiranja za insekticide brzog djelovanja, te 72 sata nakon tretiranja za insekticide sporog djelovanja. Sve istraživane populacije krumpirove zlatice rezistentne su na cipermetrin, klorantraniliprol i lufenurom. Na tiakloprid i metaflumizon je rezistentno pola istraživanih populacija, a klorpirifos je pokazao djelotvornost samo na jednoj populaciji, a na ostalima rezistentnost. Sve populacije krumpirove zlatice osjetljive su na spinosad.

Abstract (english)

Colorado potato beetle (Leptinotarsa decemlineata Say) (CPB) is the most important potato pest. Due to its rapid adaptation and development of resistance, it creates major problems in potato pest protection. So far, 300 cases of CPB resistance on 56 insecticides have been reported worldwide. The resistance of CPB in Croatia has been proved on chlorinated hydrocarbons, organophosphorus insecticides, carbamates and pyrethroids. The aim of the study was to determine the susceptibility of CPB larvae to permitted insecticides in the Republic of Croatia (chlorpyrifos, cypermethrin, thiacloprid, chlorantraniliprole, metaflumizone, spinosad and lufenuron) on ten locations from six counties in continental Croatia. In 2018, laboratory tests were conducted according to the IRAC test method 007, by inoculating potato leaves into various groups of insecticides. Populations were classified into 5 categories based on efficacy of the recommended dose 48 hours after the treatment for fast acting insecticides and 72 hours after insecticide treatment for slow acting insecticides. All investigated Colorado potato beetle populations were resistant to cypermethrin, chlorantraniliprol and lufenurom. Half of the investigated populations was resistant to thiacloprid and metaflumizone. Chlorpyriphos showed efficacy only in one population, while other populations were resistant. All populations of Colorado potato beetle were susceptible to spinosad.

• Keywords: krumpirova zlatica; krumpir; rezistentnost; insekticidi
• Keywords (english): Colorado potato beetle; potato; resistance; insecticides
• Language: croatian
• URN:NBN: urn:nbn:hr:204:744913
• Study programme: Title: Phytomedicine; Study programme type: university; Study level: graduate; Academic / professional title: magistar/ magistra inženjer/inženjerka fitomedicine (magistar/ magistra inženjer/inženjerka fitomedicine)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Access restricted to students and staff of home institution
• Created on: 2023-03-13 12:18:44