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Effective Usage of Copper Fungicides for Environment-friendly Control of Citrus Diseases

친환경적 감귤 병 방제를 위한 구리제의 효율적 사용

  • Hyun Jae-Wook (Subtropical Environment Division, National Institute of Subtropical Agriculture, RDA) ;
  • Ko Sang-Wook (Citrus Research Division, National Institute of Subtropical Agriculture, RDA) ;
  • Kim Dong-Hwan (Subtropical Environment Division, National Institute of Subtropical Agriculture, RDA) ;
  • Han Seung-Gab (Subtropical Environment Division, National Institute of Subtropical Agriculture, RDA) ;
  • Kim Kwang-Sik (Citrus Research Division, National Institute of Subtropical Agriculture, RDA) ;
  • Kwon Hyeog-Mo (Subtropical Environment Division, National Institute of Subtropical Agriculture, RDA) ;
  • Lim Han-Cheol (Subtropical Environment Division, National Institute of Subtropical Agriculture, RDA)
  • 현재욱 (농촌진흥청 난지농업연구소 난지환경과) ;
  • 고상욱 (농촌진흥청 난지농업연구소 감귤과) ;
  • 김동환 (농촌진흥청 난지농업연구소 난지환경과) ;
  • 한승갑 (농촌진흥청 난지농업연구소 난지환경과) ;
  • 김광식 (농촌진흥청 난지농업연구소 감귤과) ;
  • 권혁모 (농촌진흥청 난지농업연구소 난지환경과) ;
  • 임한철 (농촌진흥청 난지농업연구소 난지환경과)
  • Published : 2005.12.01

Abstract

This studies were carried out to elucidate the control effect of copper fungicides against some citrus diseases, assess copper spray injury on leaf and fruit of citrus by spraying of copper fungicides according to growth stages and spray seasons and by tank mixing with paraffin oil in field experiments for 3 years (2003-2005 season). As results, the control value was approximately $75\%$ against scab disease in all tested copper fungicides, $85-88\%$ to canker and $75-86\%$ to melanose. In case of leaf, the copper injury was the severest in early stage of shooting, and the injury was gradually weakened according to growth of leaf. In fruit, the copper injury was more severe in midsummer (late of July and August) than early of summer and spring season (June and ealy of July). Among copper fungicides, the bordeaux mixture which made by level of farm induced more injury compared to other copper fungicides commercialized. Less copper spray injury was observed on treatments in which copper fungicide was sprayed as tank mixtures with paraffin oil when compared to treatment which sprayed with only copper fungicide.

본 연구는 2003년부터 2005년까지 감귤원에서 구리제의 효율적인 사용을 위하여 주요 감귤 병에 대한 구리제의 방제 효과, 구리피해 발생시기 및 구리제 종류 별 구리피해 정도, 그리고 기계유유제와의 혼용에 대한 효과를 구명하고자 실시하였다. 결과를 종합하면 감귤더뎅이병에 대한 방제효과는 구리제 종류에 관계없이 방제가가 약 $75\%$, 궤양병에 대해서도 $85\~88\%$, 그리고 검은점무늬병에 대해서는 약 $75\~86\%$이었다. 구리피해는 새순이 어릴수 록 발생이 심하였고 과일의 경우 고온기인 7월부터 8월까지가 가장 심하였다. 또한 구리제에 응애 방제용 기계유유제를 혼용하여 살포할 경우 방제 효과는 그대로 유지하였지만 구리피해는 상당히 감소하였으며 이들 결과들로부터 구리제와 기계유유제를 혼용하여 적기에 사용할 경우 봄철 더뎅이병과 궤양병, 그리고 응애를 동시에 방제할 수 있으며 유기농이나 무농약 재배 과원에서도 효율적으로 사용할 수 있을 것으로 생각된다.

Keywords

References

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