20.500.12556/DKUM-54968 ZATIRANJE KRVAVE UŠI (Eriosoma langerum Hasmann) V NASADIH JABLANE Control of Wooly apple aphid (Eriosoma lanigerum Hausmann) in apple orchards V letu 2014 je bil na posestvu Fakultete za kmetijstvo in biosistemske vede, Univerze v Mariboru, izveden poskus v nasadu jablan sorte Fuji. Ugotavljali smo učinkovitost najpogosteje uporabljenih fitofarmacevtskih sredstev za zatiranje krvave uši, ustreznost izbranega časovnega termina za zatiranje krvave uši in vpliv fitofarmacevtskih sredstev na parazitizem krvavih uši. Poskus je bil zasnovan v naključnem blok sistemu s štirimi ponovitvami. Pozimi, spomladi in poleti so bile izvedene aplikacije v štirih različnih terminih pri porabi 700 l/ha škropilne brozge. Rezultati kažejo, da je bila največja učinkovitost insekticidov dosežena v januarskem terminu s pripravki Pirimor (82,34%), NeemAzal (72,94%), Karate (66,19%) in Pyrinex (64,02%). Po drugem terminu škropljenja se je učinkovitost pri vseh pripravkih bistveno zmanjšala predvsem zaradi višjih temperatur od običajnih. Ekološki škropilni program zatiranja krvave uši je bil najmanj učinkovit. Največji parazitizem uši je bil dosežen pri prvem terminu škropljenja, ko je bil parazitizem uši v povprečju 10,64%. V integriranih škropilnih programih še vedno dosegamo dobre rezultate zatiranja krvave uši s pripravkom Pirimor, saj ima višjo učinkovitost kot ostala sredstva in najmanj vpliva na parazitizem s strani krvavkinega najezdnika. In the year 2014, on the Faculty of the agriculture and applied sciences’, University of Maribor property an experiment in Fuji apple orchard was conducted. We examined the effectiveness of the mostly used pesticides for control of wooly apple aphid, adequacy of selected time period for control of wooly apple aphid and impact of pesticides on parasitism of wooly apple aphids. The experiment was organized in random block system with four repetitions. In winter, spring and summer the applications of different insecticides in form of 700 l/ha spray mixture were performed. Results show that the greatest effectiveness of insecticides was accomplished in January term with preparations Pirimor (82,34%), NeemAzal (72,94%), Karate (66,19%) in Pyrinex (64,02%). After the second term of treatment the effectiveness of all the preparations was significantly reduced due to the higher temperatures in comparison to the first treatment. Ecological spray programme for control of wooly apple aphid was at least effective. The highest parasitism of wooly apple aphid was reached in first term of treatment, where the parasitism was 10,64 % in average. In integrated spray programmes we can still expect good results of the control of wooly apple aphid by using Pirimor preparation, while it has higher effectiveness in comparison to other preparations and has the lowest impact on the parasitism from parasitoid wasp. jablana (Malus domestica Borkh krvava uš (Eriosoma lanigerum Hausmann) krvavkin najezdnik (Aphelinus mali Hald) zatiranje krvave uši načini zatiranja krvave uši apple tree (Malus domestica Borkh) Wooly apple aphid (Eriosoma lanigerum Hausmann) parasitoid wasp (Aphelinus mali Haldemann) wooly apple aphid control various treatments of the wooly apple aphid control true true false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2015-09-21 04:48:49 2015-09-28 08:24:44 2022-06-07 03:07:40 2021-05-13 03:23:24 2015 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 URN:SI:UM:DK:SOZGFF1B VS_Kuhl_Crtomir_2015.pdf VS_Kuhl_Crtomir_2015.pdf 1 D5E8B1D40F0B084CCC511C528095B968 4fae8946b4c15a0be0e9996044db9c5de39a70d6958b416289094d40bc879c86 17480455-7c07-11eb-bb7a-00155d0001ca https://dk.um.si/Dokument.php?lang=slv&id=81817 Fakulteta za kmetijstvo in biosistemske vede 0 0 0