Evaluation of tebuconazole for the management of Fusarium head blight in China

Fusarium head blight (FHB) of wheat is caused by fungal populations belonging to the Fusarium graminearum species complex (FGSC). In this study, tebuconazole (a sterol demethylation inhibitor fungicide, DMI) was evaluated for FHB management in China using in vitro tests and field trials. Although te...

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Bibliographic Details
Published in:Australasian plant pathology 2014-11, Vol.43 (6), p.631-638
Main Authors: Sun, H.-Y., Zhu, Y.-F, Liu, Y.-Y., Deng, Y.-Y., Li, W., Zhang, A.-X., Chen, H.-G.
Format: Article
Language:English
Subjects:
Agriculture
Airborne microorganisms
Biomedical and Life Sciences
Blight
Demethylation
Deoxynivalenol
Ecology
Entomology
Fungicides
Fusarium
Fusarium graminearum
Fusarium head blight
In vitro methods and tests
Life Sciences
Plant Pathology
Plant Sciences
Powdery mildew
Sensitivity
Statistical analysis
Tebuconazole
Triadimefon
Wheat
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Summary:Fusarium head blight (FHB) of wheat is caused by fungal populations belonging to the Fusarium graminearum species complex (FGSC). In this study, tebuconazole (a sterol demethylation inhibitor fungicide, DMI) was evaluated for FHB management in China using in vitro tests and field trials. Although tebuconazole has not been widely used in China, another DMI, triadimefon, has been constantly used to control wheat powdery mildew for more than 20 years. The sensitivity of 56 FGSC isolates collected from 2000 to 2002 and 107 FGSC isolates collected from 2012 to 2013 to tebuconazole were compared. The half-maximal effective concentration (EC 50 ) values of the two groups of isolates ranged from 0.028 to 0.262 mg L −1 and from 0.045 to 0.497 mg L −1 , respectively, and statistically significant differences ( P  
ISSN:0815-3191
1448-6032
DOI:10.1007/s13313-014-0309-4