Integrative Biology Journals
Integrative Conservation

JOURNAL OF FORESTRY RESEARCH ›› 2025, Vol. 36 ›› Issue (1): 1-.DOI: 10.1007/s11676-025-01847-6

• Original Paper •    

Control efficacy and persistence of fluopyram dust against pine wilt disease

Yajie Guo1,2, Jiayi Ma1,2,3, Mingqing Weng1,2, Rebeca Carballar‑Lejarazú4, Wenlong Jiao1,2, Jieqin Wu1, Feiping Zhang1,2, Songqing Wu1,2,5   

  1. 1College of Forestry, Fujian Agriculture and Forestry University, Fuzhou 350002, People’s Republic of China 

    2Key Laboratory of Integrated Pest Management in Ecological Forests, Fujian Province University, Fujian Agriculture and Forestry University, Fuzhou 350002, People’s Republic of China 

    3Pharmaceutical and Medical Technology College, Putian University, Fuzhou 350002, People’s Republic of China

    4Department of Microbiology and Molecular Genetics, University of California, Irvine, CA 92697-4025, USA 

    5Fujian Colleges and Universities Engineering Research Institute of Conservation and Utilization of Natural Bioresources, College of Forestry, Fujian Agriculture and Forestry University, Fuzhou 350000, People’s Republic of China

  • Received:2024-02-23 Accepted:2024-10-15 Online:2025-03-22 Published:2025-01-01
  • Supported by:
    This research was supported by grants from the National Key R & D Program of China (grant number 2021YFD1400900); the National Natural Science Foundation of China (grant numbers U1905201, 32171805); the Forestry Key Program of Science and Technology in Fujian Province (grant number 2021FKJ03); the Natural Science Foundation of Fujian Province, China (grant number 2021J01056); the Forestry Programs of Science and Technology in Fujian Province [grant number Mincaizhi (2020) 601]; the Science and Technology Program of Fujian Province (grant number 2018N5002); the Forestry Science Research Project of Fujian Forestry Department [grant number Minlinke (2017) 03]; the National Major Emergency Science and Technology Program of China (grant number ZD202001); and the Forestry Peak Discipline Construction Project of Fujian Agriculture and Forestry University (grant numbers 72202200205, 71201800720).

Abstract: The effectiveness of fluopyram suspension concentrate against pine wilt disease (PWD) is limited by spraying efficiency and water dependence. A traditional dust formulation with strong dispersibility can overcome these shortcomings. However, its efficacy against PWD remains uncertain. This study evaluated the translocation of fluopyram dust within tree tissues, soil and water degradation, and its effective control against PWD. Nursery tests showed effective prevention; field tests showed dust absorption and translocation into pine tissues. Thirty days following application, residual concentrations in soil were low at 0.09 mg kg−1; no detectable residues were found in water samples. Three years after applying fluopyram, its effectiveness increased to approximately 87%. Based on this study, fluopyram had a half-life of 346 d with persistence lasting up to three years. This provides valuable insight for managing PWD through dust applications.

Key words: Pine wilt disease, Fluopyram, Dust formulation, Efficacy, Persistence

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