Collaborative project: Management of herbicide-resistant weeds - diagnosis and detection of herbicide-resistant weed populations in the field, GIS-based documentation, risk analysis and recommendations for management decisions - subproject 1 | FISA - Forschungsinformationssystem Agrar und Ernährung

Collaborative project: Management of herbicide-resistant weeds - diagnosis and detection of herbicide-resistant weed populations in the field, GIS-based documentation, risk analysis and recommendations for management decisions - subproject 1

Project

Production processes

This project contributes to the research aim 'Production processes'. Which funding institutions are active for this aim? What are the sub-aims? Take a look:
Production processes

Project code: 2814705011
Contract period: 01.03.2013 - 29.02.2016
Budget: 129,000 Euro
Purpose of research: Applied research

Herbicide-resistant weed species worldwide spread and present a serious problem for farmers. Costs for weed control increase and farmers are facing with significant yield losses because of weed competition. The partners DuPont de Nemours, IDENTXX GmbH, University of Hohenheim and Heinz Walz GmbH aimed to develop and test a new sensor system for detecting herbicide resistant weed species in the field shortly after herbicide application. The second objective was to identify the resistance mechanism using molecular bioassays. The third objective was to investigate a resistance management strategy. Within this three-year project, the partners developed a new optical sensor (WeedPAM) capable for detecting herbicide resistance in several weed species, mainly Alopecurus myosuroides, 5 days after herbicide application with an accuracy of 95%. This allows farmers and consultants applying additional weed control methods in the same season. A 5-year field experiment was conducted at two locations in Baden-Württemberg to investigate the effect of crop rotation and herbicide management on the abundance of resistant Alopecurus myosuroides. Densities of Alopecurus myosuroides rapidly increased in the monoculture winter wheat using the same mode of herbicide action in all years. With the integration of maize and spring barley in the rotation and the variation of mode of herbicide action in every year, density of Alopecurus myosuroides decreased by 97%. In conclusion, the project provides effective ecological and economical meaningful tools to identify control and prevent herbicide resistance in weeds.

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