Učinkovitost botaničkih insekticida u suzbijanju repičina sjajnika u poljskim uvjetima

master's thesis

• Title (english): Efficiency of using botanical insecticides for control rape beetle in field conditions
• Author: Hrvoje Filipović
• Mentor: Ivan Juran (mentor)
• Committee member: Ivan Juran (predsjednik povjerenstva)
• Committee member: Tanja Gotlin Čuljak (član povjerenstva)
• Committee member: Milan Pospišil (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Agricultural Zoology); Zagreb
• Defense date and country: 2022-09-21, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Repičin sjajnik najvažniji je štetnik uljane repice koji može sniziti prinos i za do pedeset posto. Dosadašnja zaštita uljane repice od repičina sjajnika postala je neučinkovita i neuspješna budući da je na neke aktivne tvari utvrđena rezistentnost, a neke su izgubile dozvolu za primjenu. Iz navedenih razloga površine zasijane uljanom repicom u Republici Hrvatskoj se iz godine u godine smanjuju. Kao jedna od alternativnih mjera suzbijanja repičina sjanika ističu se botanički insekticidi koji su u laboratorijskim uvjetima pokazali dobre rezultate. Poljski pokus s botaničkim insekticidima u suzbijanju repičina sjajnika proveden je 2022. godine na lokalitetu Bošnjaci. Nije utvrđena statistički značajna razlika u učinkovitosti između kemijskih i botaničkih insekticida. Postotak oštećenja pupova je na tretiranim varijantama za 10 % niži nego na netretiranoj kontroli. Visina prinosa na tretiranim varijantama je za tonu po hektaru veća. Kako botanički insekticidi (piretrin, azadirachtin) pokazuju zadovoljavajuću učinkovitost podjednaku standardu (indoksakarb), mogu uspješno zamijeniti kemijske insekticide u praksi.

Abstract (english)

Rape beetle is the most important pest for rapeseed. He can cut yield for up to 50 percent. The control of this pest as we knew until now is unsuccessful and ineffective. The reason for that is resistance to some active substances from insecticides, and loss of some active substances, too. Because of stated reasons, the fields sown with rapeseed in Croatia are every year more reduced. Botanical insecticides stand out as one of the alternative measures to control the pollen beetle. Also, they shown good results in laboratory conditions. The field experiment was conducted in 2022. in Bošnjaci. There are no statistically significant differences in efficiency between chemical and botanical insecticides. The percentage of bud damage is 10 % lower on the treated varieties than on the untreated control. The yield on the treated varieties is one ton per hectare higher. As botanical insecticides (piretrin, azadirachtin) show satisfactory efficiency which is equal to the standard (indoksakarb), they can be successfully used in practice instead of chemical ones.

• Keywords: repičin sjajnik; uljana repica; botanički insekticidi; poljski pokus
• Keywords (english): pollen beetle; rapeseed; botanical insecticides; field experiment
• Language: croatian
• URN:NBN: urn:nbn:hr:204:203480
• 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: Open access; Embargo expiration date: 2022-12-29
• Created on: 2022-09-29 06:44:42