An outlook on wheat health in Europe from a network of field experiments

Willocquet, Laetitia; Meza, Walter Rodrigo; Dumont, Benjamin; Klocke, Bettina; Feike, Til; Kersebaum, Kurt Christian; Meriggi, P.; Rossi, Vittorio; Ficke, Andrea; Djurle, Annika; Savary, Serge

doi:10.1016/j.cropro.2020.105335

Cited by 18 publications

(20 citation statements)

References 44 publications

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“…However, at the sites in Söllingen and Dahnsdorf, clear infections appeared at the end of the growing season in 2017 and 2018. Septoria leaf blotch is one of the most important diseases in Europe, as it is in Germany, and lack of control can lead to high yield losses (Jahn et al, 2012;Willocquet et al, 2021). The severe yellow rust epidemic masked the Septoria leaf blotch symptoms on the leaves to some extent in the years studied and at the same time the weather conditions were not always optimal for further Septoria infections.…”

Section: Discussionmentioning

confidence: 99%

Disease threshold-based fungicide applications: potential of multi-disease resistance in winter wheat cultivars in Germany

Klocke

Sommerfeldt²,

Wagner

et al. 2022

Eur J Plant Pathol

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The presence of foliar pathogens often leads to yield losses in winter wheat (Triticum aestivum L.), the most important crop in Germany. In this study the efficacy of different host resistance levels of eight wheat cultivars and three fungicide strategies on fungal disease control was studied in terms of yield and net return in field trials at five sites over three crop years. Fungicide treatments included a situation-related strategy in which cultivars were treated individually based on disease control thresholds, a practice-related strategy in which all cultivars were treated after disease thresholds had been exceeded in one cultivar, and an untreated control. Disease severity and incidence differed between cultivars and were reduced by fungicide treatments compared to the untreated control. On average over all locations and years, the Fungicide Treatment Frequency Index (TFI) of all cultivars treated with the situation-related strategy was significantly lower than those treated with the practice-related strategy, except the highly susceptible cultivar JB Asano. A reduction of the TFI by up to 82% was possible in the situation-related strategy. Despite slightly increased yields in the practice-related strategy compared to the situation-related strategy, these could not compensate for the higher fungicide costs in most cases and led to lower net returns. The cultivars with multi-disease resistance showed clear advantages. Their potential benefits are not only demonstrated by the attainment of high yields, but also in fungicide savings without reducing net returns, provided that their disease resistance characteristics are taken into account.

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Section: Discussionmentioning

confidence: 99%

Disease threshold-based fungicide applications: potential of multi-disease resistance in winter wheat cultivars in Germany

Klocke

Sommerfeldt²,

Wagner

et al. 2022

Eur J Plant Pathol

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“…needs to be investigated. The use of simulation models may serve to supplement the limited data on crop yield losses caused by pests and pathogens, to scale them up, and to evaluate scenarios on future or changed climatic, production, and cropping system conditions [231]. Process-based crop models, such as DSSAT-CROPSIM, simulate the soil-plant-atmosphere system, including abiotic stress due to water and nutrient deficiency.…”

Section: Mineral-ecological Cropping Systems From the Perspective Of Yield And Product Qualitymentioning

confidence: 99%

Mineral-Ecological Cropping Systems—A New Approach to Improve Ecosystem Services by Farming without Chemical Synthetic Plant Protection

et al. 2021

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The search for approaches to a holistic sustainable agriculture requires the development of new cropping systems that provide additional ecosystem services beyond biomass supply for food, feed, material, and energy use. The reduction of chemical synthetic plant protection products is a key instrument to protect vulnerable natural resources such as groundwater and biodiversity. Together with an optimal use of mineral fertilizer, agroecological practices, and precision agriculture technologies, a complete elimination of chemical synthetic plant protection in mineral-ecological cropping systems (MECSs) may not only improve the environmental performance of agroecosystems, but also ensure their yield performance. Therefore, the development of MECSs aims to improve the overall ecosystem services of agricultural landscapes by (i) improving the provision of regulating ecosystem services compared to conventional cropping systems and (ii) improving the supply of provisioning ecosystem services compared to organic cropping systems. In the present review, all relevant research levels and aspects of this new farming concept are outlined and discussed based on a comprehensive literature review and the ongoing research project “Agriculture 4.0 without Chemical-Synthetic Plant Protection”.

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“…Winter wheat leaf diseases is a considerable risk factor of wheat production; therefore, it is necessary to understand importance of agronomic practice on the development of this disease. It is found that leaf blotches are the dominant leaf diseases across Europe (Willocquet et al, 2020). Tan spot, caused by Pyrenophora tritici-repentis and Septoria leaf blotch caused by Zymoseptoria tritici are the most important wheat leaf diseases in many regions of wheat cultivation, including Uruguay, Canada, Baltic region etc.…”

Section: Introductionmentioning

confidence: 99%

Impact of Crop Rotation and Soil Tillage on the Severity of Winter Wheat Leaf Blotches

Bankina

Bimšteine

Arhipova

et al. 2021

Rural Sustainability Research

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Reduced tillage is considered as one of the main tools to save biological diversity; however, it increases pressure of diseases, including wheat leaf blotches. The aim of present study was to clarify the impact of reduced soil tillage on the development of winter wheat leaf blotches in different schemes of crop rotation. The impact of different growing technologies on the severity of winter wheat disease was evaluated in a two-factorial experiment: A – soil tillage system, and B – different combinations of wheat pre-pre-crop and pre-crop (wheat, oilseed rape, barley and faba beans). Diseases were assessed every 10 days approximately and total impact of diseases was evaluated by calculating AUDPC (Area under Diseases Progress Curve). Tan spot, caused by Pyrenophora tritici-repentis was dominated disease over the long period, regardless of meteorological conditions. Development of Septoria leaf blotch was not influenced by neither crop rotation nor soil tillage. The level of tan spot was essentially higher after wheat, regardless of the pre-pre-crop. Reduced soil tillage promoted severity of tan spot. Ploughing mitigated effect of previous crops and differences in tan spot level were insignificant. Despite many positive effects of conservation tillage, increasing of fungicide treatment could be necessary, in conditions, when the tan spot is most devastating and widespread wheat disease.

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An outlook on wheat health in Europe from a network of field experiments

Cited by 18 publications

References 44 publications

Disease threshold-based fungicide applications: potential of multi-disease resistance in winter wheat cultivars in Germany

Disease threshold-based fungicide applications: potential of multi-disease resistance in winter wheat cultivars in Germany

Mineral-Ecological Cropping Systems—A New Approach to Improve Ecosystem Services by Farming without Chemical Synthetic Plant Protection

Impact of Crop Rotation and Soil Tillage on the Severity of Winter Wheat Leaf Blotches

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