Evaluation of control methods for the best practicing conditions for the control of bacterial blossom blight of kiwifruit

  • Kim, G. H. (Dept. Applied Biology, Sunchon National University) ;
  • Park, J. K. (Dept. Applied Biology, Sunchon National University) ;
  • J. S. Shin (Yeosusi Agricultural Development and Technology Center) ;
  • J.S. Hur (Dept. Environmental Education, Sunchon National University) ;
  • J. S. Jung (Dept. Biology, Sunchon National University) ;
  • Y. J, Koh (Dept. Applied Biology, Sunchon National University)
  • Published : 2003.10.01

Abstract

Control of bacterial blossom blight of kiwifruit (Actinidia deliciosa) has been mainly depended on chemical control. Recently cultural practices such as trunk girdling of kiwifruit trees and rainproof installation over kiwifruit trees also were conducted as the alternative control practices. Each of the control methods was evaluated for the best practicing conditions for the control of bacterial blossom blight of kiwifruit. Among the various combinations of spray times and spray periods, optimum spray program of antibiotics was turned out to be 3 times with intervals of 10 days from early May during the flowering season of kiwifruits. Optimum periods of trunk girdling of kiwifruit trees were from late March to late April. Trunk girdling with 20-30 mm wide showed best control efficacies on bacterial blossom blight, irrespective of the heights of girdling on trunks of kiwifruit trees. Optimum period of rainproof installation over kiwifruit trees was from March till late April, irrespective of installation methods.

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