Experiences of Integrated Disease Management of Crops

A special issue of Agronomy (ISSN 2073-4395). This special issue belongs to the section "Pest and Disease Management".

Deadline for manuscript submissions: closed (15 February 2024) | Viewed by 5555

Special Issue Editors


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Guest Editor
UMR IGEPP, INRAe, Institut Agro Rennes-Angers, Université de Rennes 1, CEDEX, 35653 Le Rheu, France
Interests: fungi; oomycote; parasitic ecology; epidemiology; population diversity; intercropping; disease management
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
UMR IGEPP, INRAe, Institut Agro Rennes-Angers, Université de Rennes 1, CEDEX, 35653 Le Rheu, France
Interests: bacteria; oomycote; disease resistance; elicitors

E-Mail Website
Guest Editor
UMR IGEPP, INRAe, Institut Agro Rennes-Angers, Université de Rennes 1, CEDEX, 35653 Le Rheu, France
Interests: aphids; parasitoid; agroecology

Special Issue Information

Dear Colleagues,

The need to improve agricultural sustainability to secure yields, minimize environmental impacts, and limit the impact of environmental change is widely recognized. A major challenge in all agricultural systems is the management of weed, disease, and insect pests. Conventional systems have demonstrated their limits, primarily through pesticides that leave production systems vulnerable to the development of pest resistance to these chemicals or traits, and secondly through the use of resistance cultivars which, when their deployment is not well managed, leads to overcoming and the emergence of new virulent strains. This statement implies anticipating and better controlling pest risk by acting at different levels of the epidemic processes. Indeed, to better control pests, different parameters need to be considered, including inoculum sources or pest reservoirs and canopy conductivity, but also pest survival strategies. Integrated pest management is characterized by an emphasis on preventive, not curative, measures, and the long-term goal to “amplify agro-ecological system resilience” by developing on-farm management approaches rather than purchasing external products. It can be summarized as a systems approach that incorporates plant-based resistance, farm-scale cultural practices, or crop-targeted intervention with biological, mechanical, or natural control agents. This Special Issue aims to emphasize the new IPM strategies developed to reduce pest impact on crop production. This Special Issue will include seven topics:

  • Disease monitoring systems and disease strategy adaptation;
  • Soil health, potentiation of plants, and disease control;
  • Biocontrol strategies’ combination;
  • Field design and system approach to improve the control of disease;
  • Mobilization of the biology of pathogens to develop innovative strategies;
  • Simultaneous management of disease complexes;
  • Climate change, disease emergence, and effectiveness of IPM methods.

Dr. Christophe Le May
Dr. Florence Val
Dr. Anne Le Ralec
Guest Editors

Manuscript Submission Information

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Keywords

  • cultural practices
  • biocontrol
  • ecosystemic services
  • cultivars resistance
  • monitoring
  • disease complex

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Published Papers (3 papers)

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Research

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13 pages, 2207 KiB  
Article
Temperature and Isolate Are Important Determinants of Brassica napus Susceptibility to Aggressive Sclerotinia sclerotiorum Isolates
by Pippa J. Michael, Ashmita Rijal Lamichhane and Sarita Jane Bennett
Agronomy 2023, 13(6), 1606; https://doi.org/10.3390/agronomy13061606 - 14 Jun 2023
Cited by 1 | Viewed by 1070
Abstract
Management of Sclerotinia stem rot (SSR) disease in Brassica napus is heavily reliant on prophylactic fungicide applications at flowering, which often provides inconsistent control depending on timing of ascospore release in the field and environmental conditions. Understanding host response to Sclerotinia sclerotiorum infection [...] Read more.
Management of Sclerotinia stem rot (SSR) disease in Brassica napus is heavily reliant on prophylactic fungicide applications at flowering, which often provides inconsistent control depending on timing of ascospore release in the field and environmental conditions. Understanding host response to Sclerotinia sclerotiorum infection is essential for sustainable disease management in the future. This study determined host response of nine B. napus varieties to four aggressive S. sclerotiorum isolates across two years by measuring four disease variables: area under the disease progress stairs (AUDPS), seed production, sclerotia number and average sclerotia weight. Brassica napus varieties varied greatly in their response to the four measured variables, with varieties producing the highest AUDPS not being the same varieties that had the lowest seed production, the highest numbers of sclerotia or heaviest sclerotia. Repeating the experiment over two years using the same varieties and isolates identified the impact of environment on measured disease variables as the most influential factor, highlighting the complexity of disease responses to diverse isolates and host genotypes under different environments. It was recommended that both long-term (such as inoculum production) and short-term (such as seed production) disease outcomes be combined with lesion length measurement (i.e., AUDPS) for future host screening studies. Full article
(This article belongs to the Special Issue Experiences of Integrated Disease Management of Crops)
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Review

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18 pages, 1191 KiB  
Review
Consideration of the Disease Complexes, the Missing Link to Correctly Analyze the Impact of Intercropping on Disease Development
by Manu Affichard, Marine Jacquelin, Tracy Khalil, Didier Andrivon and Christophe Le May
Agronomy 2024, 14(6), 1210; https://doi.org/10.3390/agronomy14061210 - 3 Jun 2024
Viewed by 640
Abstract
Diversification at the plot level, through the use of intercropping (mixtures of crops), is an alternative to the conventional system of intensive agriculture, based on monospecific, usually single-variety canopies. Intercropping has been shown to provide benefits in terms of disease control. However, competition [...] Read more.
Diversification at the plot level, through the use of intercropping (mixtures of crops), is an alternative to the conventional system of intensive agriculture, based on monospecific, usually single-variety canopies. Intercropping has been shown to provide benefits in terms of disease control. However, competition phenomena and the heterogeneity of the associated crops raise new ecological questions, particularly with regard to the dynamics and evolution of parasite populations. No study has assessed the potential impact of these associations on the dynamics of pathogenic species complexes. Changes in the nutritional status of plants and therefore in their physiological susceptibility to infection within intercropping systems could contribute to an increased diversity of ecological niches and thus affect the composition of the parasitic complex and its spatiotemporal dynamics. In this review, focusing on foliar diseases of fungal origin, and after outlining some elements of the biology and epidemiology of these fungal diseases, we will (i) describe the mechanisms that contribute to the composition of disease clusters and that drive interactions, but we will also review the strategies that these foliar diseases have adopted to deal with these co-infections; (ii) define how intercropping can lead to changes in epidemic dynamics, in particular by presenting the mechanisms that have a direct and indirect effect on disease evolution; and (iii) present the approach that should be adopted to properly study intercropping correctly in a multi-infection situation. Full article
(This article belongs to the Special Issue Experiences of Integrated Disease Management of Crops)
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Other

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11 pages, 1276 KiB  
Opinion
Placing Management of Sunflower Downy Mildew (Plasmopara halstedii (Farl.) Berl. et de Toni) under an Integrated Pest Management (IPM) System Approach: Challenges and New Perspectives
by Rita Bán, József Kiss, Zoltán Pálinkás and Katalin Körösi
Agronomy 2023, 13(4), 1029; https://doi.org/10.3390/agronomy13041029 - 30 Mar 2023
Cited by 2 | Viewed by 3237
Abstract
Sunflower is one of the major oil crops in the world. Diseases such as sunflower downy mildew (Plasmopara halstedii (Farl.) Berl. et de Toni) constitute a significant risk factor during sunflower production. Integrated pest management (IPM) is considered an essential tool against [...] Read more.
Sunflower is one of the major oil crops in the world. Diseases such as sunflower downy mildew (Plasmopara halstedii (Farl.) Berl. et de Toni) constitute a significant risk factor during sunflower production. Integrated pest management (IPM) is considered an essential tool against sunflower downy mildew; however, the pathogen variability repeatedly affects the efficacy of control measures. This article evaluates some vital elements of the management of sunflower downy mildew disease and analyzes current challenges. In addition, we outlined the options for the future integration of recent research and achievements related to sunflower downy mildew to achieve more sustainable sunflower production. Finally, a SWOT analysis was performed to consider internal factors, such as strengths (S) and weaknesses (W), and external factors, such as opportunities (O) and threats (T) connected to the topic. Full article
(This article belongs to the Special Issue Experiences of Integrated Disease Management of Crops)
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