title: HALT Ambrosia - final project report and general publication of project findings
Creators: name: Julius-Kühn-Archiv
Publisher: name: Julius Kühn-Institut
Year: 2016

description: Ulrike Sölter, Uwe Starfinger und Arnd Verschwele (Eds.)
description: Table of Contents...3
Introduction: the HALT Ambrosia project...7
A standard protocol for sampling and handling of seed material...9
Germination and viability of ragweed seeds...13
Response of common ragweed (Ambrosia artemisiifolia L.) to soil salinity...14
Triphenyl Tetrazolium Chloride Ringtest...16
Studying the seasonal pattern of field emergence of ragweed in Hungary...20
Effect of emergence time on life cycle, shoot dry weight, pollen and seed production...21
Soil seed bank studies I-III...24
Intraspecific differences of seed longevity between ragweed populations in Hungary...31
Pre-trials on seed viability at the Julius Kühn-Institut...32
Pre-trials on seed viability at the University of Natural Resources and Life Sciences...34
Viability of seeds ripened after cutting (pot experiment)...36
Post harvest seed ripening (pot experiment)...37
Field experiment on longevity of the seeds in the soil seed bank (Joint experiment)...41
Field experiment on longevity of the seeds in the soil seed bank (initial seed burial experiment at the University of Natural Resources and Life Sciences (BOKU)...48
Recommendations on safety of composting or use as biogas fuel of common ragweed seed contaminated material...50
Implications of life history for control and eradication...58
A standard protocol for testing viability with the Triphenyl Tetrazolium Chloride (TTC) Test...65
Perspectives for biological control...67
Efficacy report and guidance on options for thermal control of Ambrosia artemisiifolia...85
Guidance for the Management of contaminated soil...88
Improving efficiency of mechanical ragweed control in urban areas...117
Control of common ragweed by mowing and hoeing...118
Identification of correct timing of mowing based on mowing in the most vulnerable phenological stages of ragweed...125
Experiments on non-chemical and integrated control strategies...145
Suppressing common ragweed biomass with integrated farming methods...146
Outcompeting common ragweed by sowing different seed mixtures combined with various cutting regimes...147
Mowing regime experiment on field roadside populations of common ragweed...148
The influence of different catch crops incorporated into the soil to ragweed competition in following crops...150
Growth and development of common ragweed (Ambrosia artemisiifolia L.) under different nitrogen, water and competition levels...151
Competitiveness of common ragweed against different plant species...152
Control of common ragweed in ALS herbicide-resistant sunflower hybrids (Helianthus annuus)...154
Efficacy of different herbicides on common ragweed in oil pumpkins (Cucurbita pepo)...159
Efficacy of bio-herbicides against ragweed...161
Report on the feasibility and benefits of spot spraying...162
Efficacy of imazamox on Ambrosia artemisiifolia...172
Effects of low herbicide dosage on production and fertility of common ragweed seeds...174
Effects of treatment timing...175
Effect of sequential treatments...176
Effects of different herbicide treatments on common ragweed in winter wheat (Hungary)...178
Effects of different herbicide treatments on common ragweed in maize (Hungary)...179
Effects of different herbicide treatments on common ragweed on wheat stubble (Hungary)...181
Effects of different herbicide treatments for common ragweed control at different phenological stages under field conditions (Hungary)...183
Herbicide efficacy for common ragweed control after defoliation (Slovenia)...187
Biodiversity impacts of common ragweed...188
Outlook...227
Recommendations for countries affected by common ragweed invasion...228
Index of Authors...232
Julius-Kühn-Archiv 455...complete issue