20.500.12556/DKUM-13722 Vpliv oskrbe vinogradov na pojavnost trsnih rumenic The impact of vineyard management on the incidence of grapevine yellows V vinogradu sorte 'Chardonnay', okuženem z Bois noir fitoplazmo, podjetja Radgonske gorice d.d., smo v obdobju od leta 2006 do leta 2009 proučevali vpliv tehnoloških ukrepov na pogostost pojavljanja trt z znamenji trsnih rumenic. V poskusu smo primerjali dva sistema oskrbe vinograda (sistem A — običajna integrirana pridelava, sistem B — integrirana pridelava, z dodatno uporabo insekticidov in herbicidov). Preučevali smo tudi učinkovitost herbicidov za zatiranje plevelov gostiteljev BN fitoplazme in prenašalca škržatka (Hyalesthes obsoletus Sign.). Poskusi so pokazali, da povečana intenzivnost zatiranja plevelov in uporabe insekticidov, vpliva na dinamiko pojavljanja trt z znamenji okužb s fitoplazmami povzročiteljicami rumenic vinske trte. Pri oskrbi po sistemu A je delež trt z znamenji po letih znašal 4,93 % (2006), 2,99 % (2007), 3,83 % (2008) in 3,06 % (2009). Delež trt, z izraženimi znamenji v delih vinograda z oskrbo po sistemu B pa je znašal 5,48 % (2006), 4,71 % (2007), 3,13 % (2008) in 2,27 % (2009). Z bolj intenzivnim zatiranjem plevelov in uporabo insekticidov na osnovi indoksakarba in klorpirifosa smo dosegli, da se delež trt, ki so kazale znamenja okužb z rumenicami, v poskusnem vinogradu dolgoročno ni povečeval. To posredno kaže tudi na možnost, da se ni povečeval delež okuženih trt. Uspešnost zatiranja plevelov, ki so gostitelji škržatka (Hyalesthes obsoletus Sign.), je možno povečati le z uvajanjem novih vrst herbicidov. The survey on the impact of technological measures on the incidence of vines with symptoms of grapevines yellows was carried out during the period 2006-2009 in the vineyard of Radgonske gorice d.d. on the Chardonnay grapevines , infected with Bois noir phytoplasmas. In the experiment, two vineyard management systems (system A - standard integrated production, system B - integrated production with additional use of insecticides and herbicides) were compared. Furthermore, the efficacy of herbicides for the control of weed, i.e. hosts of BN phytoplasmas and leafhopper vector (Hyalesthes obsoletus Sign.) was examined. The study showed that the increasing intensity of weed control and use of insecticides affect the dynamics of incidence of vines with signs of infection with the pathogenic phytoplasmas of grapevine yellows. In the part of the vineyard managed in accordance to system A the proportion of vines with symptoms was 4.93 % (2006), 2.99 % (2007), 3.83 % (2008) and 3.06 % (2009). The proportion of vines with expressed signs in the part of the vineyard cultivated in accordance to system B was 5.48 % (2006), 4.71 % (2007), 3.13 % (2008) and 2.27 % (2009). With more intensive weed control and use of insecticides on the basis of indoxacarb and chlorpyrifos it was achieved that a long-term increase of proportion of vines with expressed symptoms of infection with grapevine yellows was not recorded in the experimental vineyard. Indirectly, it also indicates the possibility that the proportion of infected vines was not increased. The success of control of weeds, i.e. hosts for leafhoppers (Hyalesthes obsoletus Sign.) can only be increased with the introduction of new types of herbicides. Ključne besede: vinska trta fitoplazme herbicidi insekticidi oskrba grapevine phytoplasmas herbicides insecticides management true true false Slovenski jezik Angleški jezik Magistrsko delo 2010-04-18 20:30:49 2010-05-11 14:49:45 2022-04-12 11:26:08 2023-12-16 03:27:34 2010 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 URN:SI:UM:DK:9SZMXRFB MAG_Kovacic_Gorazd-Rudolf_2010.pdf MAG_Kovacic_Gorazd-Rudolf_2010.pdf 1 C9E2A730D89F5DD25C370CED1D700606 2a666cc6baa2fcd20c6f9efab1d30c77c4c9130e2de5ce06ef5fa21bf3222b80 fa007d7a-7c03-11eb-bb7a-00155d0001ca 20.500.12556/dkum/baf3e368-1a7b-4008-9f89-d029b86e1098 https://dk.um.si/Dokument.php?lang=slv&id=14100 Fakulteta za kmetijstvo in biosistemske vede 0 0 0