Efikasnost fungicida različitog mehanizma delovanja u suzbijanju kestenjaste pegavosti izdanaka maline (Didymella applanata)

  • Milan Stević Univerzitet u Beogradu, Poljoprivredni fakultet, Nemanjina 6, 11080 Beograd
  • Biljana Pavlović Stipendista Ministarstva prosvete, nauke i tehnološkog razvoja RS
  • Brankica Tanović Institut za pesticide i zaštitu životne sredine, Banatska 31b, 11080 Beograd
Ključne reči: Didymella applanata||, ||Didymella applanata, Fungicides||, ||Fungicidi, Chemical control||, ||Hemijsko suzvijanje, Raspberries||, ||Malina,

Sažetak


U toku 2014. i 2016. godine, ispitivana je efikasnost četiri fungicida sa nespecifičnim
(bakar-hidroksid, makozeb, hlorotalonil i ditianon) i šest sa specifičnim (fluopiram, boskalid, fluazinam, tebukonazol, azoksistrobin i piraklostrobin) mehanizmom delovanja, u suzbijanju prouzrokovača kestenjaste pegavosti izdanaka maline (Didymella applanta). Ogledi su izvedeni u komercijalnom zasadu maline na lokalitetu Trešnjevica (Arilje), u zapadnoj Srbiji, po tipu potpunog slučajnog blok sistema sa četiri ponavljanja. Svi fungicidi su primenjeni preventivno, a obavljeno je ukupno pet tretiranja, četiri pre berbe i jedno nakon završene berbe. Efikasnost testiranih preparata ocenjena je tri nedelje nakon poslednje primene fungicida. Intenzitet oboljenja u kontrolnim (netretiranim) parcelama iznosio je 53,7% (2014) i 76,3% (2016). Tokom obe godine ispitivanja, najviša efikasnost postignuta je primenom tebukonazola (96,3% i 99,6%), fluopirama (95,7% i 99.3%) i boskalida (94,7% i 95,9%). Fungicidi nespecifičnog mehanizma delovanja mankozeb, hlorotalonil, bakar-hiroksid i ditianon bili su efikasni u suzbijanju D. applanata i značajno su smanjili intenzitet oboljenja u poređenju sa netretiranim parcelama. Efikasnost ovih preparata bila je između 64,4% i 81,7%, dok su azoksistrobin, piraklostrobin i fluazinam pokazali veoma nisku efikasnost (13,7-37,8%) u subijanju prouzrokovača kestenjaste pegavosti izdanaka maline.

Biografija autora

Milan Stević, Univerzitet u Beogradu, Poljoprivredni fakultet, Nemanjina 6, 11080 Beograd
Vanredni profesor

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Objavljeno
2017/06/05
Kako citirati
Stević, M., Pavlović, B., & Tanović, B. (2017). Efikasnost fungicida različitog mehanizma delovanja u suzbijanju kestenjaste pegavosti izdanaka maline (Didymella applanata). Pesticides and Phytomedicine / Pesticidi I Fitomedicina, 32(1). https://doi.org/10.2298/pif.v32i1.12945
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