The effects of fungicides on Fusarium spp. and their associated mycotoxins in naturally infected winter wheat grain.
Skaidre Suproniene
Institute of Agriculture, Lithuanian Research Centre for Agriculture and Forestry Department of Plant Pathology and Protection, Instituto av. 1, LT–58344 Akademija, Kedainiai distr. Lithuania (Lithuania)
Audrone Mankeviciene
Institute of Agriculture, Lithuanian Research Centre for Agriculture and Forestry Department of Plant Pathology and Protection, Instituto av. 1, LT–58344 Akademija, Kedainiai distr. Lithuania (Lithuania)
Irena Gaurilcikiene
Institute of Agriculture, Lithuanian Research Centre for Agriculture and Forestry Department of Plant Pathology and Protection, Instituto av. 1, LT–58344 Akademija, Kedainiai distr. Lithuania (Lithuania)
Abstract
Field trials conducted at the Institute of Agriculture, Lithuanian Research Centre for Agriculture and For- estry (central part of Lithuania) in 2009 were aimed to evaluate the effect of fungicides on Fusarium Head Blight (FHB) in a naturally infected field. A single application of dimoxystrobin + epoxiconazole (Swing Gold), prothioconazole (Proline), metconazole (Juventus), tebuconazole (Folicur), prothioconazole + tebu- conazole (Prosaro) was applied to winter wheat cv. ‘Zentos’ at the manufacturer’s recommended doses at anthesis (BBCH 65). The FHB incidence and severity were assessed at milk and hard maturity stages. The percentage of Fusarium infected grain and deoxynivalenol (DON), zearalenone (ZEN) and T-2 toxin (T-2) concentrations in harvested grain were determined. In all fungicide treated plots a significant reduction of FHB incidence and severity was determined; however the fungicides did not exert any effect on the amount of Fusarium–infected grain as compared with the untreated control. A reduction of DON, ZEN and T-2 contents in grain was determined in tebuconazole treatments. Fusarium avenaceum (Fr.) Sacc, F. culmorum (W. G. Sm.) Sacc., F. poae (Peck) Wollenw, F. sporotrichioides Sherb. and F. tricinctum (Corda) Sacc were identi- fied in wheat grain, F. poae was prevalent.
Keywords:
Fusarium head blight, Fusarium spp., fungicides, mycotoxin, winter wheatReferences
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Authors
Skaidre SupronieneInstitute of Agriculture, Lithuanian Research Centre for Agriculture and Forestry Department of Plant Pathology and Protection, Instituto av. 1, LT–58344 Akademija, Kedainiai distr. Lithuania Lithuania
Authors
Audrone MankevicieneInstitute of Agriculture, Lithuanian Research Centre for Agriculture and Forestry Department of Plant Pathology and Protection, Instituto av. 1, LT–58344 Akademija, Kedainiai distr. Lithuania Lithuania
Authors
Irena GaurilcikieneInstitute of Agriculture, Lithuanian Research Centre for Agriculture and Forestry Department of Plant Pathology and Protection, Instituto av. 1, LT–58344 Akademija, Kedainiai distr. Lithuania Lithuania
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