Translocation of Fungicides and Their Efficacy in Controlling<i>Phellinus noxius</i>, the Cause of Brown Root Rot Disease
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- Ting-Zhi Liao
- Master Program for Plant Medicine, National Taiwan University, Taipei 10617, Taiwan
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- Yu-Hsuan Chen
- Pesticide Residue Analysis Center, National Chung Hsing University, Taichung 40227, Taiwan
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- Jyh-Nong Tsai
- Taiwan Agricultural Research Institute, Council of Agriculture, Taichung 413008, Taiwan
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- Chieh Chao
- Pesticide Residue Analysis Center, National Chung Hsing University, Taichung 40227, Taiwan
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- Tzu-Pi Huang
- Pesticide Residue Analysis Center, National Chung Hsing University, Taichung 40227, Taiwan
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- Cheng-Fang Hong
- Pesticide Residue Analysis Center, National Chung Hsing University, Taichung 40227, Taiwan
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- Zong-Chi Wu
- Department of Plant Pathology and Microbiology, National Taiwan University, Taipei 10617, Taiwan
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- Isheng Jason Tsai
- Biodiversity Research Center, Academia Sinica, Taipei 11529, Taiwan
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- Hsin-Han Lee
- Biodiversity Research Center, Academia Sinica, Taipei 11529, Taiwan
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- Ned B. Klopfenstein
- United States Department of Agriculture (USDA) Forest Service, Moscow, ID 83843, U.S.A.
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- Mee-Sook Kim
- USDA Forest Service, Corvallis, OR 97331, U.S.A.
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- Jane E. Stewart
- Department of Agricultural Biology, Colorado State University, Fort Collins, CO 80523, U.S.A.
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- Ndeme Atibalentja
- American Samoa Community College, Western Dist. 96799, American Samoa
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- Fred E. Brooks
- 1961 Westwood Pl., Pomona, CA 91768, U.S.A.
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- Philip G. Cannon
- USDA Forest Service, State and Private Forestry, Forest Health Protection, Vallejo, CA 94592, U.S.A.
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- A. Mohd Farid
- Forest Health and Conservation Programme, Forest Research Institute Malaysia, Selangor 52109, Kepong, Malaysia
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- Tsutomu Hattori
- Forestry and Forest Products Research Institute, Tsukuba 305-8687, Japan
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- Hoi-Shan Kwan
- School of Life Sciences, The Chinese University of Hong Kong, Central Ave, Hong Kong
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- Regent Yau Ching Lam
- School of Life Sciences, The Chinese University of Hong Kong, Central Ave, Hong Kong
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- Yuko Ota
- College of Bioresource Sciences, Nihon University, Kanagawa 252-0880, Japan
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- Norio Sahashi
- Forestry and Forest Products Research Institute, Tsukuba 305-8687, Japan
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- Robert L. Schlub
- Cooperative Extension and Outreach, University of Guam, Mangilao 96923, Guam
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- Louise S. Shuey
- Department of Agriculture and Fisheries, Queensland Government, Brisbane 4001, Australia
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- Alvin M. C. Tang
- Muni Arborist Limited, Lam Tsuen, Hong Kong
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- Chia-Lin Chung
- Master Program for Plant Medicine, National Taiwan University, Taipei 10617, Taiwan
抄録
<jats:p>Brown root rot disease (BRRD), caused by Phellinus noxius, is an important tree disease in tropical and subtropical areas. To improve chemical control of BRRD and deter emergence of fungicide resistance in P. noxius, this study investigated control efficacies and systemic activities of fungicides with different modes of action. Fourteen fungicides with 11 different modes of action were tested for inhibitory effects in vitro on 39 P. noxius isolates from Taiwan, Hong Kong, Malaysia, Australia, and Pacific Islands. Cyproconazole, epoxiconazole, and tebuconazole (Fungicide Resistance Action Committee [FRAC] 3, target-site G1) inhibited colony growth of P. noxius by 99.9 to 100% at 10 ppm and 97.7 to 99.8% at 1 ppm. The other effective fungicide was cyprodinil + fludioxonil (FRAC 9 + 12, target-site D1 + E2), which showed growth inhibition of 96.9% at 10 ppm and 88.6% at 1 ppm. Acropetal translocation of six selected fungicides was evaluated in bishop wood (Bischofia javanica) seedlings by immersion of the root tips in each fungicide at 100 ppm, followed by liquid or gas chromatography tandem mass spectrometry analyses of consecutive segments of root, stem, and leaf tissues at 7 and 21 days posttreatment. Bidirectional translocation of the fungicides was also evaluated by stem injection of fungicide stock solutions. Cyproconazole and tebuconazole were the most readily absorbed by roots and efficiently transported acropetally. Greenhouse experiments suggested that cyproconazole, tebuconazole, and epoxiconazole have a slightly higher potential for controlling BRRD than mepronil, prochloraz, and cyprodinil + fludioxonil. Because all tested fungicides lacked basipetal translocation, soil drenching should be considered instead of trunk injection for their use in BRRD control.</jats:p>
収録刊行物
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- Plant Disease
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Plant Disease 107 (7), 2039-2053, 2023-07-01
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詳細情報 詳細情報について
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- CRID
- 1360861707158031360
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- ISSN
- 19437692
- 01912917
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- データソース種別
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- Crossref
- KAKEN