Abstract
Fusarium head blight (FHB) caused by Fusarium graminearum (Schwabe) and Fusarium culmorum (W.G. Smith Sacc.) belongs to the most damaging diseases in cereal crops. Actually mycotoxin contamination of human food and animal feed became a more important feature than direct yield losses that often occur irregularly. F. graminearum and F. culmorum were described to produce Deoxynivalenol (DON), but also ability to produce DON derivates and zearalenone has been recognized in some isolates of both species. These trichothecenes are phytotoxins and causes chlorosis, necrosis and wilting. The aim of contribution was to estimate efficacy of new fungicide for controlling fusarium head blight in wheat. Additionally the protective and curative effects of fungicide compounds were tested. For measuring the efficacy severity and incidence was assessed. Also the yield, fusarium damaged kernel (FDK) and Deoxynivalenol-content in grains were determined. The investigations were performed in field trials over two years using artificial inoculation methods and a randomized block design with four replicates. For testing the fungicide efficacy maize residues / debris were applied as an inoculum source. They were distributed on the plots in winter months. Spray inoculation was used for investigation of protective and curative fungicide effects. In addition to natural inoculum, plots were inoculated with 250.000 conidia /ml of F. culmorum at mid anthesis. Fusarium severity and incidence was determined 21, 24 and 28 days after inoculation. After harvest, yield, DON concentration and fusarium damaged kernels were quantificated.For reduction of fusarium head blight prothioconazole, tebuconazole and the tank mix of epoxiconazole + metconazole resulted in the best efficacy levels of 70-90%. Comparing these data with DON reduction so a high correlation (r = 0.86; P = 0.01) was determined. As a new fusarium fungicide thiophanate-methyl produced a positive effect on DON-reduction while the reduction of visible symptoms was only moderate. Analyzing the treatments for optimal fungicide timing spraying 36-48 hours after inoculation showed the best efficacy of 80-90%. Applications days before inoculation the disease control was reduced nearly 10-20%. The efficacy to control fusarium head blight was improved by mixing the triazoles with morpholines (SBI, class II, amine). A faster uptake of the active ingredient could be provided.In all fungicide treatments an incremental yield was measured.The study demonstrated a positive linear relationship between DON and Fusarium head blight reduction by using modern new fungicides.
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Claims 11
Claim · model-written summary
prothioconazole achieved 70–90% efficacy against Fusarium head blight.
- Taxon
- wheat
Triticum aestivume1 - Treatment
- prothioconazolee0
- Outcome
- fusarium head blighte0
- Direction
- reductione0
- Value
- 70-90%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For reduction of fusarium head blight prothioconazole, tebuconazole and the tank mix of epoxiconazole + metconazole resulted in the best efficacy levels of 70-90%”
t0“New aspects in use of fungicides for control Fusarium head blight”
e1“in wheat”
Claim · model-written summary
tebuconazole achieved 70–90% efficacy against Fusarium head blight.
- Taxon
- wheatTriticum aestivume1
- Treatment
- tebuconazolee0
- Outcome
- fusarium head blighte0
- Direction
- reductione0
- Value
- 70-90%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For reduction of fusarium head blight prothioconazole, tebuconazole and the tank mix of epoxiconazole + metconazole resulted in the best efficacy levels of 70-90%”
t0“New aspects in use of fungicides for control Fusarium head blight”
e1“in wheat”
Claim · model-written summary
the tank mix of epoxiconazole + metconazole achieved 70–90% efficacy against Fusarium head blight.
- Taxon
- wheatTriticum aestivume1
- Treatment
- the tank mix of epoxiconazole + metconazolee0
- Outcome
- fusarium head blighte0
- Direction
- reductione0
- Value
- 70-90%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For reduction of fusarium head blight prothioconazole, tebuconazole and the tank mix of epoxiconazole + metconazole resulted in the best efficacy levels of 70-90%”
t0“New aspects in use of fungicides for control Fusarium head blight”
e1“in wheat”
Claim · model-written summary
Fungicide efficacy and DON reduction were strongly correlated.
- Taxon
- wheatTriticum aestivume1
- Treatment
- fungicidest0
- Outcome
- DON reductione0
- Value
- r = 0.86e0
- Qualifier
- P = 0.01e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Comparing these data with DON reduction so a high correlation (r = 0.86; P = 0.01) was determined”
t0“New aspects in use of fungicides for control Fusarium head blight”
e1“in wheat”
Claim · model-written summary
Thiophanate-methyl reduced DON.
- Taxon
- wheatTriticum aestivume1
- Treatment
- thiophanate-methyle0
- Outcome
- DON-reductione0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“thiophanate-methyl produced a positive effect on DON-reduction”
t0“New aspects in use of fungicides for control Fusarium head blight”
e1“in wheat”
Claim · model-written summary
Thiophanate-methyl only moderately reduced visible symptoms.
- Taxon
- wheatTriticum aestivume1
- Treatment
- thiophanate-methyle0
- Outcome
- visible symptomse0
- Direction
- reductione0
- Qualifier
- only moderatee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“thiophanate-methyl produced a positive effect on DON-reduction while the reduction of visible symptoms was only moderate”
t0“New aspects in use of fungicides for control Fusarium head blight”
e1“in wheat”
Claim · model-written summary
Spraying 36–48 hours after inoculation achieved the best efficacy of 80–90%.
- Taxon
- wheatTriticum aestivume1
- Treatment
- spraying 36-48 hours after inoculatione0
- Outcome
- efficacye0
- Direction
- beste0
- Value
- 80-90%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spraying 36-48 hours after inoculation showed the best efficacy of 80-90%”
t0“New aspects in use of fungicides for control Fusarium head blight”
e1“in wheat”
Claim · model-written summary
Application days before inoculation reduced disease control by nearly 10–20%.
- Taxon
- wheatTriticum aestivume1
- Treatment
- Applications days before inoculatione0
- Outcome
- disease controle0
- Direction
- reducede0
- Value
- 10-20%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Applications days before inoculation the disease control was reduced nearly 10-20%”
t0“New aspects in use of fungicides for control Fusarium head blight”
e1“in wheat”
Claim · model-written summary
Mixing triazoles with morpholines improved Fusarium head blight control.
- Taxon
- wheatTriticum aestivume1
- Treatment
- mixing the triazoles with morpholinese0
- Outcome
- efficacy to control fusarium head blighte0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The efficacy to control fusarium head blight was improved by mixing the triazoles with morpholines”
t0“New aspects in use of fungicides for control Fusarium head blight”
e1“in wheat”
Claim · model-written summary
All fungicide treatments increased yield.
- Taxon
- wheatTriticum aestivume1
- Treatment
- all fungicide treatmentse0
- Outcome
- yielde0
- Direction
- incrementale0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In all fungicide treatments an incremental yield was measured”
t0“New aspects in use of fungicides for control Fusarium head blight”
e1“in wheat”
Claim · model-written summary
DON and Fusarium head blight reductions had a positive linear relationship under modern fungicides.
- Taxon
- wheatTriticum aestivume1
- Treatment
- modern new fungicidese0
- Outcome
- DON and Fusarium head blight reductione0
- Direction
- positive linear relationshipe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The study demonstrated a positive linear relationship between DON and Fusarium head blight reduction by using modern new fungicides”
t0“New aspects in use of fungicides for control Fusarium head blight”
e1“in wheat”
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See all 39 papers →8 of 9 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.