Article
Agronomy
Agnieszka Kiniec, Katarzyna Pieczul, Jacek Piszczek
Summary: Long-term and intensive use of fungicides may lead to fungal resistance to active ingredients. This study detected multiple resistance to MBC and QoI fungicides in C. beticola, emphasizing the importance of monitoring and registering new active ingredients.
Article
Agriculture, Multidisciplinary
Sebastian Liebe, Frederike Imbusch, Tobias Erven, Mark Varrelmann
Summary: Cercospora beticola causes a significant leaf spot disease in sugar beet. Although there are tolerant varieties, fungicide application is still necessary for disease control. The timing of fungicide application is crucial, and a disease incidence of 5% is widely used as a threshold. A recent study aimed to determine if fungicide application based on spore flight could improve disease control compared to using disease incidence as a threshold.
JOURNAL OF PLANT DISEASES AND PROTECTION
(2023)
Article
Plant Sciences
Daniel M. Bublitz, Linda E. Hanson, J. Mitchell McGrath
Summary: This study assessed the presence of C. beticola spores in the environment using sentinel beets and found correlations between spore levels and weather variables such as rainfall and relative humidity. The findings suggest that rainfall and relative humidity are significantly associated with the presence of spores, providing valuable information for improving disease prediction models and management strategies for CLS.
Article
Plant Sciences
Qi Liu, Ganggang Dong, Houchen Qi, Zhengguo Feng, Zongying Zhang, Chenggui Han, Ying Wang
Summary: In this study, a new method for single spore isolation of C. beticola was developed, which facilitated monitoring fungicide sensitivity of infected field samples. It was found that a high percentage of C. beticola isolates in the Chifeng area were resistant to pyraclostrobin, indicating a high risk of emergence of C. beticola-resistant strains to QoI fungicides in this area. Furthermore, G143A or F129L mutation of the cytochrome b (Cyt-b) gene was found in these resistant isolates.
JOURNAL OF PHYTOPATHOLOGY
(2022)
Article
Statistics & Probability
Gauss M. Cordeiro, Rodrigo Labouriau, Denise A. Botter
Summary: This article briefly introduces the theory and application of dispersion models, highlighting the importance of mathematical assumptions and the construction of various types of dispersion models.
BRAZILIAN JOURNAL OF PROBABILITY AND STATISTICS
(2021)
Article
Soil Science
Julie Therese Christensen, Musibau Oyeleke Azeez, Rodrigo Labouriau, Sabine Ravnskov, Hanne Lakkenborg Kristensen, Lars Juhl Munkholm, Gitte Holton Rubaek
Summary: Long-term applications of lime and phosphorus can improve soil conditions, promoting root growth and abundance of arbuscular mycorrhizal fungi (AMF), but high lime application rates may not necessarily increase crop yield.
SOIL USE AND MANAGEMENT
(2022)
Article
Statistics & Probability
R. Labouriau
Summary: This study characterizes the unbiasedness of the score function in a class of finite mixture models, and shows that the score function becomes biased when certain unknown probabilities exist in the estimation of parameters for group distribution.
COMMUNICATIONS IN STATISTICS-THEORY AND METHODS
(2023)
Article
Plant Sciences
Rebecca Spanner, Jonathan Neubauer, Thies M. Heick, Michael A. Grusak, Olivia Hamilton, Viviana Rivera-Varas, Ronnie de Jonge, Sarah Pethybridge, Kimberley M. Webb, Gerhard Leubner-Metzger, Gary A. Secor, Melvin D. Bolton
Summary: This study confirmed the presence of viable Cercospora beticola in sugar beet seed and demonstrated that seedborne inoculum can initiate Cercospora leaf spot disease in sugar beet. The study also showed that C. beticola mainly resides in the pericarp of sugar beet fruit rather than the true seed. These findings highlight the importance of considering seedborne inoculum in integrated disease management strategies for Cercospora leaf spot of sugar beet in the future.
Article
Soil Science
Sindhuja Shanmugam, Margita Hefner, Jeanett S. Pelck, Rodrigo Labouriau, Hanne L. Kristensen
Summary: Intercropping can improve yield and nitrogen use efficiency in organic vegetable production through complementary root growth, with higher yields of cabbage and increased total nitrogen accumulation observed in intercropping systems.
SOIL USE AND MANAGEMENT
(2022)
Article
Agronomy
Kamran Saleem, Mogens Stovring Hovmoller, Rodrigo Labouriau, Annemarie Fejer Justesen, Jihad Orabi, Jeppe Reitan Andersen, Chris Khadgi Sorensen
Summary: We characterized yellow rust resistance in sixteen winter wheat breeding lines using diverse pathogen races and microscopic phenotyping. Our findings showed that different lines exhibited varying levels of resistance against different pathogen races.
Article
Agriculture, Multidisciplinary
Ignacio Antonio Erreguerena, Neil David Havis, Thies Marten Heick, Kalina Gorniak, Facundo Quiroz, Marcelo Anibal Carmona
Summary: Ramularia leaf spot poses a threat to barley production in Argentina. Disease management relies on fungicides, but the fungus is showing increasing resistance. Efforts should focus on finding new active ingredients and resistant varieties to reduce dependence on fungicides.
JOURNAL OF PLANT DISEASES AND PROTECTION
(2022)
Article
Agronomy
Steven Kildea, Pierre Hellin, Thies M. Heick, Fiona Hutton
Summary: The study found a wide range of sensitivity to fenpicoxamid in European Z. tritici populations, with limited or non-existing target-site resistance mechanisms and limited impact of non-target site resistance mechanisms in the field.
PEST MANAGEMENT SCIENCE
(2022)
Article
Agronomy
Sindhuja Shanmugam, Margita Hefner, Rodrigo Labouriau, Alessandra Trinchera, Koen Willekens, Hanne Lakkenborg Kristensen
Summary: The effects of intercropping and different organic fertilization strategies on the plant-soil system were investigated. Overall, intercropping had lower or similar productivity compared to monocropping, with the effects on root growth concentrated in a few soil layers. The plant-based fertilization strategy showed higher soil fertility and potential mineralization. Long-term improvements are expected with compost-supplemented fertilization strategies.
EUROPEAN JOURNAL OF AGRONOMY
(2022)
Article
Plant Sciences
Muhammad Asim Javed, Arne Schwelm, Nazanin Zamani-Noor, Rasha Salih, Marina Silvestre Vano, Jiaxu Wu, Melaine Gonzalez Garcia, Thies Marten Heick, Chaoyu Luo, Priyavashini Prakash, Edel Perez-Lopez
Summary: Plasmodiophora brassicae is a major threat to the rapeseed and brassica vegetable industry, causing clubroot disease in cruciferous plants. The disease is characterized by wilting, stunting, yellowing, and the presence of club-shaped galls in the roots.
MOLECULAR PLANT PATHOLOGY
(2023)
Article
Plant Sciences
Karolina Lavrukaite, Thies M. Heick, Jurate Ramanauskiene, Rita Armoniene, Antanas Ronis
Summary: Zymoseptoria tritici is a major cause of yield loss in winter wheat worldwide due to its ability to cause septoria leaf blotch. Fungicides are commonly used by farmers to protect their crops, but the effectiveness of these measures is decreasing rapidly as the pathogen develops resistance through natural mutation mechanisms. This study conducted sensitivity tests, mutation detection, and field experiments in Lithuania to assess the current situation of fungicide resistance. The findings reveal an increase in resistance mutations and provide important information on the status of fungicide resistance in the Lithuanian Z. tritici population.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Plant Sciences
Lise Nistrup Jorgensen, Niels Matzen, Thies Marten Heick, Aoife O'Driscoll, Bill Clark, Katherine Waite, Jonathan Blake, Mariola Glazek, Claude Maumene, Gilles Couleaud, Bernd Rodemann, Stephan Weigand, Charlotte Bataille, R. Ban, Pierre Hellin, Steven Kildea, Gerd Stammler
Summary: Septoria tritici blotch (STB), caused by Zymoseptoria tritici, is a severe leaf disease on wheat in Northern Europe. The increasing fungicide resistance in Z. tritici populations poses challenges to future control options. A series of field trials across Europe from 2019 to 2021 investigated the efficacy of specific DMI and SDHI fungicides against STB. Significant differences in azole performances were observed among countries, with mefentrifluconazole outperforming prothioconazole. The efficacy of SDHIs varied, with fluxapyroxad providing the best overall efficacy. However, lower efficacy of SDHIs was observed in Ireland and the UK compared to continental Europe, coinciding with the prevalence of specific SDH-C alterations. Co-formulations of DMIs + SDHIs performed well in all trials conducted in 2021. This study highlights the importance of implementing anti-resistance strategies to delay the erosion of fungicide efficacy.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Agronomy
Niels Frederik Vestergard, Lise Nistrup Jorgensen, Pierre Hellin, Thies Marten Heick
Summary: Zymoseptoria tritici is a destructive fungal pathogen on wheat, controlled mainly by demethylase inhibitors (DMIs) and succinate dehydrogenase inhibitors (SDHIs). Resistance mutations in the CYP51 gene have led to decreased sensitivity to DMIs, while resistance to SDHIs has been detected in several countries. Danish and Swedish Z. tritici populations remain sensitive to both types of fungicides, but resistant isolates are increasing in frequency.
EUROPEAN JOURNAL OF PLANT PATHOLOGY
(2023)
Article
Agronomy
Steven Kildea, Pierre Hellin, Thies M. Heick, Stephen Byrne, Fiona Hutton
Summary: This study reveals a wide range of sensitivity to mefentrifluconazole in European Z. tritici populations. The Irish population showed the lowest sensitivity to the tested azoles. Further analysis of the Irish population in 2021 demonstrated that sensitivity differences were associated with the frequencies of key resistance mechanisms. Reductions in the efficacy of mefentrifluconazole were observed towards strains with the lowest sensitivity under glasshouse conditions.
PEST MANAGEMENT SCIENCE
(2023)
Article
Neurosciences
Sanaz Ansarifar, Gabija Andreike, Milad Nazari, Rodrigo Labouriau, Sadegh Nabavi, Andrea Moreno
Summary: Optogenetics has transformed neuroscience research and introduced new considerations for AAV-based targeted gene delivery experiments. This study examined the impact of virus injection volume and expression time on optically evoked post-synaptic responses. The findings suggest that injection volume has minimal effect, while expression time gradually reduces population responses beyond 4 weeks. Time-dependent expression profiles should be carefully monitored for long-term experiments relying on stable channelrhodopsin expression.
Article
Agronomy
Talent Namatsheve, Remi Cardinael, Regis Chikowo, Marc Corbeels, Joyful Tatenda Rugare, Stanford Mabasa, Aude Ripoche
Summary: Weeds pose a significant threat to crop growth in low-input cropping systems in sub-Saharan Africa. The study found that planting sole cowpea can effectively reduce weed infestation, while having little impact on maize yield.
Article
Agronomy
Jens G. Froese, Justine V. Murray, Nicholas J. Beeton, Rieks D. van Klinken
Summary: This article introduces a generic Bayesian network model called PRReSTo, which estimates likely infestation rates of host items in consignments. PRReSTo takes into account the vulnerability of host items to pest infestation, the abundance of pests to which host items are exposed, and the effects of risk-reducing measures. PRReSTo can be used to evaluate the effectiveness and acceptability of risk reduction measures in different pest-host systems.
Article
Agronomy
Alexis Delaplace, Mathieu Coulis, Gwenaelle Cottin, Philippe Tixier
Summary: This study compares the effectiveness of two fallow trapping patterns and finds that internal trapping of fallow land can clean up plots twice as quickly as trapping surrounding the fallow land. Additionally, trapping efficiency is influenced by climatic conditions, with the wet season being more favorable for trapping than the dry season.
Article
Agronomy
Todd E. Shelly, Kevin R. Cloonan
Summary: Invasive tephritid fruit flies pose a significant threat to commercial fruit and vegetable production. Early detection is crucial, and male lures are an important component of trapping networks. This review aims to summarize data on the change in attractiveness of male lures during aging in the field, highlighting studies that relate trap captures to changes in residual content and release rate.
Article
Agronomy
M. F. Lombardo, S. Panebianco, A. Azzaro, G. Timpanaro, G. Polizzi, G. Cirvilleri
Summary: Colletotrichum and Alternaria species have become emerging fungal pathogens causing severe economic losses in citrus orchards in the Mediterranean area. The use of copper-based antimicrobials for disease management is increasingly problematic, and research for alternative formulations is encouraged. This study tested copper-alternative products on citrus orchards and found that they significantly reduced disease incidence and severity, often showing comparable or better efficacy than copper. The good efficacy of these products suggests their potential for sustainable and large-scale use in integrated and organic citriculture.
Article
Agronomy
Innocent L. Rakubu, Agil Katumanyane, Brett P. Hurley
Summary: This study investigated the host-foraging strategies of five EPN species in South Africa and found that four of them exhibited a positive response to the presence of the host and caused 100% mortality, while the other species had a lower infection rate.
Article
Agronomy
Yuli Dai, Lin Gan, Xiaofei Liu, Chengzhong Lan, Zhiqiang Li, Xiujuan Yang
Summary: This study reports the occurrence of leaf spot disease caused by Colletotrichum plurivorum on cowpea plants in Pingnan prefecture, Fujian Province, China. The pathogen was identified based on morphological features and gene sequencing. Pathogenicity tests confirmed that the isolates of C. plurivorum could infect healthy cowpea leaves and induce leaf spot symptoms.
Article
Agronomy
Wenqing Xu, Weikai Li
Summary: Crop pests and diseases have a significant impact on crop yield and food security. This paper proposes FRseNet, a model based on ResNet-50 and SENet, for recognizing various crop pests and diseases. Experimental results on a self-constructed dataset demonstrate the competitive performance of the model in recognizing 15 diseases and 21 medium insect pests.
Article
Agronomy
Hector Carcamo, Carolyn Herle, Timothy Schwinghamer, Samuel Robinson, Patty Reid, R. Keith Gabert, Tyler Wist, Breanne Tidemann, Alejandro C. Costamagna
Summary: This study updated the economic thresholds for Lygus spp., a major insect pest of canola in Canada, by integrating a large data set collected over 23 years. The results revealed that the economic injury level for Lygus was around 9-23 insects per 10 sweeps, while spraying a foliar insecticide was only necessary when Lygus catches exceeded 30 insects per 10 sweeps. Additionally, analysis of Precision Yield Data showed that at low abundances (under 17 insects per 10 sweeps), Lygus may potentially stimulate canola yield and do not require control action.
Article
Agronomy
Medetissi Adom, Ken O. Fening, Maxwell K. Billah, Pascal O. Aigbedion-Atalor, David D. Wilson
Summary: Chilli pepper is an important food and cash crop in Ghana, but its production and marketing are hindered by insect pests. This study evaluated the efficacy of five different biopesticides against major chilli pepper pests and found that Neemazal and Attack were more effective than the other three in controlling these pests.
Article
Agronomy
Fariba Ghaderi, Soraya Karami
Summary: This study identified Phytophthora species causing root and crown rot in the main sesame-producing regions of Iran. The most aggressive species was found to be P. nicotianae. Additionally, sesame cultivars with high resistance to P. nicotianae and P. megasperma were identified. This is the first report of P. megasperma infection in sesame worldwide.
Article
Agronomy
Caroline Izabel R. Sakuno, Fabricio Jose B. Francischini, Karen Missy A. Komada, Murilo Basso, Fangneng Huang
Summary: The giant borer, Telchin licus, is a significant pest of sugarcane in Central and South America, and traditional control methods are ineffective due to the larvae's hiding behavior. Recent research has shown that transgenic sugarcane expressing Bacillus thuringiensis proteins, originally developed to control another sugarcane pest, can also effectively control the giant borer.
Article
Agronomy
Lucas de Paulo Arcanjo, Poliana Silvestre Pereira, Juliana Lopes dos Santos, Kayo Heberth de Brito Reis, Allana Grecco Guedes, Damaris Rosa de Freitas, Mikaelison da Silva Lima, Mayara Cristina Lopes, Renato Almeida Sarmento, Marcelo Coutinho Picanco
Summary: This study developed a standardized sampling plan for scouting B. tabaci adults in tropical soybean fields and identified the appropriate sample unit and sampling technique. A total of 49 samples per field were required, and the sampling process lasted no more than 5 min per hectare with associated costs not exceeding US$ 0.74 per hectare.
Article
Agronomy
Vicente Bezerra Pontes Junior, Levi Andres Bonilla Rave, Adalin Moraes Cezar de Aguiar, Alessandro da Costa Lima, Ana Flavia Souza Laube, Leonardo D'Antonino, Antonio Alberto da Silva
Summary: This study aimed to investigate the influence of diuron's adsorption characteristics in soil on dose determination. The results showed that organic matter content was a key factor in determining diuron's sorption and toxicity to E. indica.
Article
Agronomy
Lu Xun, Emilio Gil
Summary: A novel methodology was proposed to analyze water-sensitive papers (WSPs) for evaluating spray quality. The segmentation of overlapping droplets based on concave point detection and ellipse fitting achieved high accuracy. A linear relationship between droplet density and coverage was observed, and simulated WSPs were generated for high coverage estimation. This approach allows for more accurate spray quality indicators from WSP collectors.
