Effects of copper citrate as a defoliant in nursery fruit stock production

  • Veljko M Gavrilović Institute for Plant Protection and Environment, Teodora Drajzera 9, 11040 Belgrade
  • Zoran Milićević Institute for Plant Protection and Environment, Teodora Drajzera 9, 11040 Belgrade
  • Goran A Aleksić Institute for Plant Protection and Environment, Teodora Drajzera 9, 11040 Belgrade
  • Mira S Starović Institute for Plant Protection and Environment, Teodora Drajzera 9, 11040 Belgrade
  • Svetlana T Živković Institute for Plant Protection and Environment, Teodora Drajzera 9, 11040 Belgrade
  • Stefan S Stošić Scholar of Ministry of Education, Science and Technological Development of the Republic of Serbia
  • Slobodan T Kuzmanović Institute for Plant Protection and Environment, Teodora Drajzera 9, 11040 Belgrade
DOI: https://doi.org/10.2298/pif.v32i3-4.15617
Keywords: Copper, Defoliation, Nursery production, Fruit stocks,

Abstract


The effects of copper citrate on defoliation of one year old fruit stocks in a nursery are presented in this paper. The investigation aimed to evaluate the defoliation efficacy of copper citrate as a new formulation, compared with other compounds recommended for that purpose. Field trials were conducted in the region of Trstenik, a center of nursery production in Serbia in 2016 and 2017. Two years of investigation showed that copper citrate could be used as an efficient compound for defoliation in nursery production. A stronger defoliation effect was observed on plum stocks, compared to apple stocks. Better results were achieved with the highest concentration of copper citrate (2%), while the effectiveness decreased with lower concentrations (0.5%, 1.0% and 1.5%). Defoliation degree on nursery apple stocks after treatment with 2.0% concentration of copper citrate varied from 80.6% to 95.6%, while it reached 100% on plum stocks.

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Published
2017/12/29
Issue
Vol. 32 No. 3-4 (2017): Pesticides and Phytomedicine / Pesticidi i fitomedicina
Section
Original Scientific Paper

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