Učinak ekološki prihvatljivih insekticida na repinu pipu

master's thesis

• Title (english): The effect of ecologically acceptable insecticides on sugar beet weevil
• Author: Luka Deak
• Mentor: Renata Bažok (mentor)
• Committee member: Renata Bažok (predsjednik povjerenstva)
• Committee member: Milan Pospišil (član povjerenstva)
• Committee member: Darija Lemić (član povjerenstva)
• Committee member: Maja Čačija (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Department of Agricultural Zoology); Zagreb
• Defense date and country: 2018-09-27, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Šećerne repa jedna je od važnijih kultura u Svijetu. Godišnje se na svjetskoj razini proizvede 277 milijuna tona. U Hrvatskoj je u 2017. godini proizvedeno 1 295 459 tona na 19 533 hektara uz prosječni prinos od 66,3 tone korijena po hektaru. Šećerna repa naziva se još „princezom ratarskih kultura“ zbog svoje potrebe za stalnom pažnjom, vrhunskom njegom i znanjem. Za vrijeme vegetacije napadaju je mnogi štetnici, a jedan od njih je repina pipa. Cilj ovog istraživanja bio je istražiti učinak insekticida na osnovi djelatnih tvari spinosad, klorantraniliprol i azadiraktin primijenjenih tretiranjem sjemena i folijarno na repinu pipu te ga usporediti s učinkom standardnih insekticida, tiametoksama primijenjenog tretiranjem sjemena i s učinkom kombiniranog insekticida na osnovi klorpirifosa i cipermetrina primijenjenog folijarno. Za potrebe pokusa prikupljeno je 520 jedinki repine pipe, 12 puta 40 jedinki (10 za svako ponavljanje) i 40 jedinki za netretiranu kontrolu. Pipe su skupljene na parcelama šećerne repe u Tovarniku. U oba pokusa pratila se učinkovitost insekticida u suzbijanju repine pipe te u očuvanju lisne površine šećerne repe. U pokusu s tretiranim sjemenom niti jedan insekticid nije dao zadovoljavajući učinak. Kod pokusa s folijarnim tretiranjem samo je standardni insekticid na osnovi klorpirifosa i cipermetrina dao zadovoljavajući učinak. Istraživane aktivne tvari dobri su kandidati za zamjenu standardnih aktivnih tvari, ali je potrebno još mnogo istraživanja da bi se uveli u svakodnevnu primjenu kao uspješne u suzbijanju repine pipe. Ovakva i slična istraživanja imaju zadatak pronaći najpovoljniji način suzbijanja repine pipe zbog smanjenja pritiska na okoliš, ali standardni pripravci i kemijsko suzbijanje još uvijek će ostati glavni način suzbijanja u bliskoj budućnosti.

Abstract (english)

Sugar beet is one of the most important crops in the world. Each year 277 million tons of sugar beet are produced worldwide. Croatia produces 1 295 459 tons of sugar beet per year, occupying 19 533 hectares of land and has an average income of 66.3 tons per hectare. Sugar beet is also called ''the queen of farming cultures'' due to her need of attention, extreme care and knowledge. During its vegetation time, sugar beet is attacked by many pests and one of the most important is sugar beet weevil. The main purpose of this research was to explore the effect of insecticides focusing on actives substances spinosad, chlorantraniliprole and azadirachtin applied during seed and leaf treatment on sugar beet weevil and to compare it with the effect of standard insecticide thiamethoxam applied on seed treatment and the effect of combined insecticides based on chlorpyrifos and cypermethrin applied on leaf treatment. For this research,520 sugar beet weevilswere collected; 12 groups of 40 sugar beet weevils (10 for each repetition) and 40 sugar beet weevils for the untreated control. Sugar beet weevils were collected on the fields of sugar beet in Tovarnik. Both experiments explored the effectiveness of insecticides in sugar beet weevil suppression and leaf preservation. The experiment in which untreated seeds were used showed that neither of insecticides used was effective. The experiment in which leaf treatment was conducted showed only the effectiveness of standard insecticide based on chlorpyrifos and cypermethrin. Explored active substances are good candidates for replacement, but it is necessary to conduct more researches in order to introduce them as successful substances in pest control and to bring them in everyday use. Researches of this kind have a task of finding the most advantageous way of pest suppression in order to ease the pressure put on the environment, but standard compositions and chemical usage will remain the main mode of sugar beet weevil suppression in close future.

• Keywords: šećerna repa; repina pipa; tretiranje sjemena; folijarno tretiranje; nove aktivne tvari
• Keywords (english): sugar beet; sugar beet weevil; seed treatment; foliar treatment; new active substances
• Language: croatian
• URN:NBN: urn:nbn:hr:204:802171
• 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: 2018-10-30 08:33:47