Authors:
Szabolcs Lechoczki-Krsjak Cereal Research non-profit Co. Szeged Hungary

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Beáta Tóth Cereal Research non-profit Co. Szeged Hungary

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Csaba Kótai Cereal Research non-profit Co. Szeged Hungary

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Imre Martonosi Cereal Research non-profit Co. Szeged Hungary

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László Farády Bayer Hungária Kft. Budapest Hungary

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László Kondrák Chemtura Europe Ltd Budapest Hungary

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Ágnes Szabó-Hevér Cereal Research non-profit Co. Szeged Hungary

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Ákos Mesterházy Cereal Research non-profit Co. Szeged Hungary

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Four nozzle types were tested on large scale trials with 2500 m 2 plot size. The AIC TeeJet, the TeeJet XR, the Turbo FloodJet and the Turbo TeeJet Duo nozzles were tested in 2006 and 2007. 250 l/ha spray amount was used for all nozzles at 7–8 km/hr speed. Nine fungicides generally used to control FHB were tested. Across nine fungicides the mean reduction in symptoms was 60 % for both AIC TeeJet and XR TeeJet nozzles, but the more effective fungicides performed better with the XR TeeJet nozzle. The Turbo TeeJet Duo nozzles reduced the symptoms by 70 % and the Turbo FloodJet nozzle by 80 %. Among the fungicides the Prosaro 1 l/ha was the most effective. The coverage was controlled by water sensitive paper stripes and UV sensitive color mixed into the spray. Data show better uniformity by paper stripes, the UV pictures show that the all-side protection by the Turbo FloodJet nozzle is not perfect, the coverage is less than anticipated. Therefore, further work is necessary for improve the coverage being necessary to an even more effective control. However, the existing improvements allow 80 % or higher reduction with the best fungicides giving a chance for a better protection. Small plot tests with the same fungicides gave highly similar results achieved with the large-scale farm application. Farm efficacy could be forecasted with r = 0.90 correlation based on small plot hand sprayed tests.

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Cereal Research Communications
Language English
Size A4
Year of
Foundation
1973
Volumes
per Year
1
Issues
per Year
4
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0133-3720 (Print)
ISSN 1788-9170 (Online)