Fungicide treatments in winter wheat: The probability of profitability

Djurle, Annika; Twengström, Eva; Andersson, B.

doi:10.1016/j.cropro.2017.12.018

Cited by 14 publications

(15 citation statements)

References 29 publications

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“…The research data show that fungicides increased grain yields significantly (Bankina et al, 2014;Castro et al, 2018;Matzen et al, 2019). In Sweden, data from 350 field experiments performed in 1996-2011 showed that the mean yield increase in fungicidetreated plots was 10% if compared to untreated plots, and ranged between 0.39 and 3.39 t ha -1 depending on year (Djurle, Twengström, & Andersson, 2018). In Argentina, the grain yield increase was 30.5% after fungicide application (Castro et al, 2018).…”

Section: Decision-support Systemsmentioning

confidence: 92%

“…Researchers emphasise that the use of foliar fungicides earlier than BBCH GS 39 can be justified and can only be useful if environmental conditions contribute to the development of a severe disease at the beginning of the growing season. A growing amount of precipitation (rain) and days with rainfall coincided with profitable fungicide treatments more frequently than in drier conditions (Djurle, Twengström, & Andersson, 2018). Studies carried out in Sweden have shown that fungicide use was profitable in 188 cases and was not profitable in 162 cases when a wheat price of 1 SEK per kg was used.…”

Section: Decision-support Systemsmentioning

confidence: 99%

“…Studies carried out in Sweden have shown that fungicide use was profitable in 188 cases and was not profitable in 162 cases when a wheat price of 1 SEK per kg was used. The rise in the price of wheat to 1.50 SEK per kg resulted in 260 treatments that made a profit and 90 treatments that caused economic losses (Djurle, Twengström, & Andersson, 2018).…”

Section: Decision-support Systemsmentioning

confidence: 99%

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Winter wheat leaf diseases and several steps included in their integrated control: A review

Svarta¹,

Bimšteine²

2019

Research for Rural Development

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Winter wheat (Triticum aestivum L.) leaf diseases is an important risk factor that influences the productivity and quality of wheat production. The aim of the present study was to review published scientific literature about the possibilities for integrated control of winter wheat leaf diseases. The most common and economically important wheat leaf diseases are Septoria leaf blotch (caused by Zymoseptoria tritici), tan spot (caused by Pyrenophora triticirepentis), yellow rust (caused by Puccinia striiformis), and powdery mildew (caused by Blumeria graminis). The severity of winter wheat diseases has varied significantly over the years and depended on meteorological conditions, variety resistance to pathogen, and tillage system. The crop rotation and an efficient residue management significantly decrease the development of tan spot. The development of Septoria leaf blotch mainly depends on meteorological conditions, but agronomic practice is less important. The use of disease-resistant varieties is the most economical, safe, and effective way to prevent and control wheat leaf diseases. Many European countries have a number of decision support systems for optimizing and minimizing the use of fungicides. Decision support systems are based on control thresholds and meteorological observations. Most used parameters are: air temperature, relative air humidity, and precipitation. These systems have been developed in the countries with a milder climate and a longer vegetation period than Latvia, and systems need to be adapted to Latvian conditions. The main groups of fungicides for disease control in winter wheat are azoles, strobilurin, and carboxamides. The results of many studies about the effectiveness of fungicide groups show that the obtained results differ and further research is needed.

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Section: Decision-support Systemsmentioning

confidence: 92%

Section: Decision-support Systemsmentioning

confidence: 99%

Section: Decision-support Systemsmentioning

confidence: 99%

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Winter wheat leaf diseases and several steps included in their integrated control: A review

Svarta¹,

Bimšteine²

2019

Research for Rural Development

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“…Many growers apply pesticide more or less routinely, which cannot always be economically justified. The reason behind this is the difficulty to handle the annual variation in net return from pesticide treatments [19], highlighting the decision making struggles that growers face. To be able to keep up with emerging new diseases and other threats to crop production, growers have to be flexible and able to adjust to future challenges and demands [20].…”

Section: Topic Identificationmentioning

confidence: 99%

“…A decision to take any plant protection measure is based both on the risk of yield loss caused by a disease, and the grower's perception of the risk of missing a treatment, that could have been justified, against a disease. As an example, in many cases pesticide treatments are done unnecessarily, but are regarded as an insurance by the growers [19]. Scientifically based evidence in decision support for both preventive and direct plant protection measures could limit economically unjustified pesticide treatments and limit the negative impact of pesticides or other crop protection measures on the surrounding environment.…”

Section: Introductionmentioning

confidence: 99%

Scientific evidence for sustainable plant disease protection strategies for the main arable crops in Sweden. A systematic map protocol

et al. 2018

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Background: Efficient and sustainable plant protection is of great economic and ecological significance for global crop production. A number of challenges, e.g. climate change, population growth and global trade, put increasing demands on future crop production and crop protection. This necessitates an increase in crop productivity with less environmental impact while maintaining good food quality and food security. To meet these challenges, it is essential that the recommendations provided to growers are efficient and correct, which can only be ensured by evidencebased recommendations based on outcomes from scientific studies. Methods and output: The aim of these systematic maps is to compile scientific evidence for different plant disease protection strategies for the main arable crops grown in Sweden. Six major crops (wheat, barley, oat, potato, sugar beet and oilseed rape) have been selected based on the area under production, the annual production, the economic importance, and the amount of pesticide used against diseases in these crops in Sweden. All methods to manage diseases will be considered, including cropping system, pesticide application, biological control methods, as well as combinations of methods and integrated pest management. These systematic maps will only deal with field studies of relevance for agricultural practices in Sweden, although we expect that the results will be applicable for northern Europe as a whole. The main outcome to be used will be productivity measured as yield per area. Plant health and pathogen reduction will be included as a proxy for potential increase in crop quality and yield. This will provide a systematic overview of the plant disease protection measures that have been reported in the scientific literature. The study will result in one searchable database per crop that may be used as a catalogue of evidence for researchers and stakeholders, especially authorities and advisory organizations. The systematic maps will aid in the identification of areas that need further research and guide funding agencies and policymakers when deciding where research resources should be allocated. It will also help to select topics for future systematic reviews and meta-studies within the field of plant protection.

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