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Environment-Friendly Control of Cucumber Downy Mildew Using Chlorine Dioxide

이산화염소수를 활용한 오이 노균병 친환경방제

  • Received : 2021.11.15
  • Accepted : 2021.12.13
  • Published : 2021.12.31

Abstract

Pseudoperonospora cubensis (downy mildew) is highly virulent to various Cucurbitaceae crops, including cucumber (Cucumis sativus). We tested chlorine dioxide application in a plastic greenhouse for environment-friendly control of downy mildew disease. Spraying diluted chlorine dioxide suppressed downy mildew disease with 41.2% control efficacy. Thermal fogging with chlorine dioxide had a high control efficacy of 80.9%, confirming that this approach is useful for environment-friendly downy mildew control. Using thermal fogging to control diseases that are greatly affected by humidity, such as downy mildew, may be more effective compared with conventional dilution spray control methods.

Pseudoperonospora cubensis는 오이를 포함한 박과작물에 강한 병원성을 나타낸다. 이러한 노균병의 친환경 방제를 위하여 이산화염소수를 적용하였는데, 희석 분무살포하는 경우에 41.2%의 방제효과가 있었지만, 가열연막살포한 경우에는 80.9%의 높은 방제효과를 얻을 수 있었다. 이러한 결과로 노균병과 같이 습도에 큰 영향을 받는 병해의 친환경 방제 시 연막 방제는 기존의 희석살포 방제법보다 더욱 효과적으로 적용 가능한 것을 확인할 수 있었다.

Keywords

Acknowledgement

This work was carried out with the support of Cooperative Research Program for Development of Industrialization Technology to Crop Viruses and Pests(Project No. 120086052HD030), Korea Institute of Planning and Evaluation for Technology in Food, Agriculture and Forestry, Korea.

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